Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation

This study presents an imaged-based shell modelling strategy for closed cell metallic foams exploiting X-ray Computed Tomography scans, with its illustration on ALCORAS® foams. Based on an in situ X-ray CT compression test, the 3D segmentation is complemented by a watershed method and a geodesic rec...
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Gespeichert in:

Autor*in:	Ghazi, A. [verfasserIn] Berke, P. [verfasserIn] Tiago, C. [verfasserIn] Massart, T.J. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	Closed-cell foam Shell finite elements Computed tomography scan In situ compression

Übergeordnetes Werk:	Enthalten in: Materials and design - Amsterdam [u.a.] : Elsevier Science, 1980, 194
Übergeordnetes Werk:	volume:194

DOI / URN:	10.1016/j.matdes.2020.108866

Katalog-ID:	ELV051273772

Internformat


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520			\|a This study presents an imaged-based shell modelling strategy for closed cell metallic foams exploiting X-ray Computed Tomography scans, with its illustration on ALCORAS® foams. Based on an in situ X-ray CT compression test, the 3D segmentation is complemented by a watershed method and a geodesic reconstruction technique to isolate cells and to identify missing walls. An implicit 3D geometry is reconstructed for each cell based on a distance field computation technique. An automated procedure extracts a shell geometry from this implicit 3D geometry, followed by a finite element meshing step. The resulting FE model is solved using ABAQUS/Explicit with an elasto-plastic-damage constitutive model for the cell walls behaviour, and with consideration of contacts between cell walls. A comparison of the simulation results is conducted with experimental force-displacement curves and scanned deformed configurations. The deformation and failure mechanisms under quasi-static compression are investigated numerically and compared with the result of the in-situ experimental measurement. The simulation is shown to predict the yield zones on both the macroscopic and cell levels. A combination of correlated microstructural morphological features (cell size, cell wall thickness, surrounding cells) is identified as critical in deformation and failure mechanisms.
650		4	\|a Closed-cell foam
650		4	\|a Shell finite elements
650		4	\|a Computed tomography scan
650		4	\|a In situ compression
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700	1		\|a Tiago, C. \|e verfasserin \|4 aut
700	1		\|a Massart, T.J. \|e verfasserin \|4 aut
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author_variant	a g ag p b pb c t ct t m tm
matchkey_str	article:18734197:2020----::optdoorpyaemdligfhbhvorflsdelealco
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publishDate	2020
allfields	10.1016/j.matdes.2020.108866 doi (DE-627)ELV051273772 (ELSEVIER)S0264-1275(20)30400-7 DE-627 ger DE-627 rda eng 600 690 VZ 51.00 bkl 51.32 bkl Ghazi, A. verfasserin aut Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This study presents an imaged-based shell modelling strategy for closed cell metallic foams exploiting X-ray Computed Tomography scans, with its illustration on ALCORAS® foams. Based on an in situ X-ray CT compression test, the 3D segmentation is complemented by a watershed method and a geodesic reconstruction technique to isolate cells and to identify missing walls. An implicit 3D geometry is reconstructed for each cell based on a distance field computation technique. An automated procedure extracts a shell geometry from this implicit 3D geometry, followed by a finite element meshing step. The resulting FE model is solved using ABAQUS/Explicit with an elasto-plastic-damage constitutive model for the cell walls behaviour, and with consideration of contacts between cell walls. A comparison of the simulation results is conducted with experimental force-displacement curves and scanned deformed configurations. The deformation and failure mechanisms under quasi-static compression are investigated numerically and compared with the result of the in-situ experimental measurement. The simulation is shown to predict the yield zones on both the macroscopic and cell levels. A combination of correlated microstructural morphological features (cell size, cell wall thickness, surrounding cells) is identified as critical in deformation and failure mechanisms. Closed-cell foam Shell finite elements Computed tomography scan In situ compression Berke, P. verfasserin aut Tiago, C. verfasserin aut Massart, T.J. verfasserin aut Enthalten in Materials and design Amsterdam [u.a.] : Elsevier Science, 1980 194 Online-Ressource (DE-627)32052857X (DE-600)2015480-X (DE-576)096806656 1873-4197 nnns volume:194 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_165 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 51.00 Werkstoffkunde: Allgemeines VZ 51.32 Werkstoffmechanik VZ AR 194
spelling	10.1016/j.matdes.2020.108866 doi (DE-627)ELV051273772 (ELSEVIER)S0264-1275(20)30400-7 DE-627 ger DE-627 rda eng 600 690 VZ 51.00 bkl 51.32 bkl Ghazi, A. verfasserin aut Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This study presents an imaged-based shell modelling strategy for closed cell metallic foams exploiting X-ray Computed Tomography scans, with its illustration on ALCORAS® foams. Based on an in situ X-ray CT compression test, the 3D segmentation is complemented by a watershed method and a geodesic reconstruction technique to isolate cells and to identify missing walls. An implicit 3D geometry is reconstructed for each cell based on a distance field computation technique. An automated procedure extracts a shell geometry from this implicit 3D geometry, followed by a finite element meshing step. The resulting FE model is solved using ABAQUS/Explicit with an elasto-plastic-damage constitutive model for the cell walls behaviour, and with consideration of contacts between cell walls. A comparison of the simulation results is conducted with experimental force-displacement curves and scanned deformed configurations. The deformation and failure mechanisms under quasi-static compression are investigated numerically and compared with the result of the in-situ experimental measurement. The simulation is shown to predict the yield zones on both the macroscopic and cell levels. A combination of correlated microstructural morphological features (cell size, cell wall thickness, surrounding cells) is identified as critical in deformation and failure mechanisms. Closed-cell foam Shell finite elements Computed tomography scan In situ compression Berke, P. verfasserin aut Tiago, C. verfasserin aut Massart, T.J. verfasserin aut Enthalten in Materials and design Amsterdam [u.a.] : Elsevier Science, 1980 194 Online-Ressource (DE-627)32052857X (DE-600)2015480-X (DE-576)096806656 1873-4197 nnns volume:194 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_165 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 51.00 Werkstoffkunde: Allgemeines VZ 51.32 Werkstoffmechanik VZ AR 194
allfields_unstemmed	10.1016/j.matdes.2020.108866 doi (DE-627)ELV051273772 (ELSEVIER)S0264-1275(20)30400-7 DE-627 ger DE-627 rda eng 600 690 VZ 51.00 bkl 51.32 bkl Ghazi, A. verfasserin aut Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This study presents an imaged-based shell modelling strategy for closed cell metallic foams exploiting X-ray Computed Tomography scans, with its illustration on ALCORAS® foams. Based on an in situ X-ray CT compression test, the 3D segmentation is complemented by a watershed method and a geodesic reconstruction technique to isolate cells and to identify missing walls. An implicit 3D geometry is reconstructed for each cell based on a distance field computation technique. An automated procedure extracts a shell geometry from this implicit 3D geometry, followed by a finite element meshing step. The resulting FE model is solved using ABAQUS/Explicit with an elasto-plastic-damage constitutive model for the cell walls behaviour, and with consideration of contacts between cell walls. A comparison of the simulation results is conducted with experimental force-displacement curves and scanned deformed configurations. The deformation and failure mechanisms under quasi-static compression are investigated numerically and compared with the result of the in-situ experimental measurement. The simulation is shown to predict the yield zones on both the macroscopic and cell levels. A combination of correlated microstructural morphological features (cell size, cell wall thickness, surrounding cells) is identified as critical in deformation and failure mechanisms. Closed-cell foam Shell finite elements Computed tomography scan In situ compression Berke, P. verfasserin aut Tiago, C. verfasserin aut Massart, T.J. verfasserin aut Enthalten in Materials and design Amsterdam [u.a.] : Elsevier Science, 1980 194 Online-Ressource (DE-627)32052857X (DE-600)2015480-X (DE-576)096806656 1873-4197 nnns volume:194 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_165 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 51.00 Werkstoffkunde: Allgemeines VZ 51.32 Werkstoffmechanik VZ AR 194
allfieldsGer	10.1016/j.matdes.2020.108866 doi (DE-627)ELV051273772 (ELSEVIER)S0264-1275(20)30400-7 DE-627 ger DE-627 rda eng 600 690 VZ 51.00 bkl 51.32 bkl Ghazi, A. verfasserin aut Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This study presents an imaged-based shell modelling strategy for closed cell metallic foams exploiting X-ray Computed Tomography scans, with its illustration on ALCORAS® foams. Based on an in situ X-ray CT compression test, the 3D segmentation is complemented by a watershed method and a geodesic reconstruction technique to isolate cells and to identify missing walls. An implicit 3D geometry is reconstructed for each cell based on a distance field computation technique. An automated procedure extracts a shell geometry from this implicit 3D geometry, followed by a finite element meshing step. The resulting FE model is solved using ABAQUS/Explicit with an elasto-plastic-damage constitutive model for the cell walls behaviour, and with consideration of contacts between cell walls. A comparison of the simulation results is conducted with experimental force-displacement curves and scanned deformed configurations. The deformation and failure mechanisms under quasi-static compression are investigated numerically and compared with the result of the in-situ experimental measurement. The simulation is shown to predict the yield zones on both the macroscopic and cell levels. A combination of correlated microstructural morphological features (cell size, cell wall thickness, surrounding cells) is identified as critical in deformation and failure mechanisms. Closed-cell foam Shell finite elements Computed tomography scan In situ compression Berke, P. verfasserin aut Tiago, C. verfasserin aut Massart, T.J. verfasserin aut Enthalten in Materials and design Amsterdam [u.a.] : Elsevier Science, 1980 194 Online-Ressource (DE-627)32052857X (DE-600)2015480-X (DE-576)096806656 1873-4197 nnns volume:194 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_165 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 51.00 Werkstoffkunde: Allgemeines VZ 51.32 Werkstoffmechanik VZ AR 194
allfieldsSound	10.1016/j.matdes.2020.108866 doi (DE-627)ELV051273772 (ELSEVIER)S0264-1275(20)30400-7 DE-627 ger DE-627 rda eng 600 690 VZ 51.00 bkl 51.32 bkl Ghazi, A. verfasserin aut Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This study presents an imaged-based shell modelling strategy for closed cell metallic foams exploiting X-ray Computed Tomography scans, with its illustration on ALCORAS® foams. Based on an in situ X-ray CT compression test, the 3D segmentation is complemented by a watershed method and a geodesic reconstruction technique to isolate cells and to identify missing walls. An implicit 3D geometry is reconstructed for each cell based on a distance field computation technique. An automated procedure extracts a shell geometry from this implicit 3D geometry, followed by a finite element meshing step. The resulting FE model is solved using ABAQUS/Explicit with an elasto-plastic-damage constitutive model for the cell walls behaviour, and with consideration of contacts between cell walls. A comparison of the simulation results is conducted with experimental force-displacement curves and scanned deformed configurations. The deformation and failure mechanisms under quasi-static compression are investigated numerically and compared with the result of the in-situ experimental measurement. The simulation is shown to predict the yield zones on both the macroscopic and cell levels. A combination of correlated microstructural morphological features (cell size, cell wall thickness, surrounding cells) is identified as critical in deformation and failure mechanisms. Closed-cell foam Shell finite elements Computed tomography scan In situ compression Berke, P. verfasserin aut Tiago, C. verfasserin aut Massart, T.J. verfasserin aut Enthalten in Materials and design Amsterdam [u.a.] : Elsevier Science, 1980 194 Online-Ressource (DE-627)32052857X (DE-600)2015480-X (DE-576)096806656 1873-4197 nnns volume:194 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_165 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 51.00 Werkstoffkunde: Allgemeines VZ 51.32 Werkstoffmechanik VZ AR 194
language	English
source	Enthalten in Materials and design 194 volume:194
sourceStr	Enthalten in Materials and design 194 volume:194
format_phy_str_mv	Article
bklname	Werkstoffkunde: Allgemeines Werkstoffmechanik
institution	findex.gbv.de
topic_facet	Closed-cell foam Shell finite elements Computed tomography scan In situ compression
dewey-raw	600
isfreeaccess_bool	false
container_title	Materials and design
authorswithroles_txt_mv	Ghazi, A. @@aut@@ Berke, P. @@aut@@ Tiago, C. @@aut@@ Massart, T.J. @@aut@@
publishDateDaySort_date	2020-01-01T00:00:00Z
hierarchy_top_id	32052857X
dewey-sort	3600
id	ELV051273772
language_de	englisch
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author	Ghazi, A.
spellingShingle	Ghazi, A. ddc 600 bkl 51.00 bkl 51.32 misc Closed-cell foam misc Shell finite elements misc Computed tomography scan misc In situ compression Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation
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topic_title	600 690 VZ 51.00 bkl 51.32 bkl Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation Closed-cell foam Shell finite elements Computed tomography scan In situ compression
topic	ddc 600 bkl 51.00 bkl 51.32 misc Closed-cell foam misc Shell finite elements misc Computed tomography scan misc In situ compression
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title	Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation
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title_full	Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation
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author_browse	Ghazi, A. Berke, P. Tiago, C. Massart, T.J.
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title_sort	computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation
title_auth	Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation
abstract	This study presents an imaged-based shell modelling strategy for closed cell metallic foams exploiting X-ray Computed Tomography scans, with its illustration on ALCORAS® foams. Based on an in situ X-ray CT compression test, the 3D segmentation is complemented by a watershed method and a geodesic reconstruction technique to isolate cells and to identify missing walls. An implicit 3D geometry is reconstructed for each cell based on a distance field computation technique. An automated procedure extracts a shell geometry from this implicit 3D geometry, followed by a finite element meshing step. The resulting FE model is solved using ABAQUS/Explicit with an elasto-plastic-damage constitutive model for the cell walls behaviour, and with consideration of contacts between cell walls. A comparison of the simulation results is conducted with experimental force-displacement curves and scanned deformed configurations. The deformation and failure mechanisms under quasi-static compression are investigated numerically and compared with the result of the in-situ experimental measurement. The simulation is shown to predict the yield zones on both the macroscopic and cell levels. A combination of correlated microstructural morphological features (cell size, cell wall thickness, surrounding cells) is identified as critical in deformation and failure mechanisms.
abstractGer	This study presents an imaged-based shell modelling strategy for closed cell metallic foams exploiting X-ray Computed Tomography scans, with its illustration on ALCORAS® foams. Based on an in situ X-ray CT compression test, the 3D segmentation is complemented by a watershed method and a geodesic reconstruction technique to isolate cells and to identify missing walls. An implicit 3D geometry is reconstructed for each cell based on a distance field computation technique. An automated procedure extracts a shell geometry from this implicit 3D geometry, followed by a finite element meshing step. The resulting FE model is solved using ABAQUS/Explicit with an elasto-plastic-damage constitutive model for the cell walls behaviour, and with consideration of contacts between cell walls. A comparison of the simulation results is conducted with experimental force-displacement curves and scanned deformed configurations. The deformation and failure mechanisms under quasi-static compression are investigated numerically and compared with the result of the in-situ experimental measurement. The simulation is shown to predict the yield zones on both the macroscopic and cell levels. A combination of correlated microstructural morphological features (cell size, cell wall thickness, surrounding cells) is identified as critical in deformation and failure mechanisms.
abstract_unstemmed	This study presents an imaged-based shell modelling strategy for closed cell metallic foams exploiting X-ray Computed Tomography scans, with its illustration on ALCORAS® foams. Based on an in situ X-ray CT compression test, the 3D segmentation is complemented by a watershed method and a geodesic reconstruction technique to isolate cells and to identify missing walls. An implicit 3D geometry is reconstructed for each cell based on a distance field computation technique. An automated procedure extracts a shell geometry from this implicit 3D geometry, followed by a finite element meshing step. The resulting FE model is solved using ABAQUS/Explicit with an elasto-plastic-damage constitutive model for the cell walls behaviour, and with consideration of contacts between cell walls. A comparison of the simulation results is conducted with experimental force-displacement curves and scanned deformed configurations. The deformation and failure mechanisms under quasi-static compression are investigated numerically and compared with the result of the in-situ experimental measurement. The simulation is shown to predict the yield zones on both the macroscopic and cell levels. A combination of correlated microstructural morphological features (cell size, cell wall thickness, surrounding cells) is identified as critical in deformation and failure mechanisms.
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title_short	Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation
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author2	Berke, P. Tiago, C. Massart, T.J.
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Computed tomography based modelling of the behaviour of closed cell metallic foams using a shell approximation

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