Local strain energy density for the fracture assessment of polyurethane specimens weakened by notches of different shape
Recent studies on local stress fields in proximity of crack and notch tips have shown that Strain Energy Density (SED), averaged in a circular control volume surrounding the point of stress singularities, represents a reliable engineering approach for assessing the brittle fracture of several brittl...
Ausführliche Beschreibung
Autor*in: |
M. Peron [verfasserIn] SMJ. Razavi [verfasserIn] F. Berto [verfasserIn] J. Torgersen [verfasserIn] L. Marsavina [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2017 |
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Übergeordnetes Werk: |
In: Frattura ed Integrità Strutturale - Gruppo Italiano Frattura, 2008, 11(2017), 42, Seite 214-222 |
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Übergeordnetes Werk: |
volume:11 ; year:2017 ; number:42 ; pages:214-222 |
Links: |
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DOI / URN: |
10.3221/IGF-ESIS.42.23 |
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Katalog-ID: |
DOAJ06829641X |
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10.3221/IGF-ESIS.42.23 doi (DE-627)DOAJ06829641X (DE-599)DOAJ5eff322759774ab7a09843d294fa6218 DE-627 ger DE-627 rakwb eng TJ1-1570 TA630-695 M. Peron verfasserin aut Local strain energy density for the fracture assessment of polyurethane specimens weakened by notches of different shape 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Recent studies on local stress fields in proximity of crack and notch tips have shown that Strain Energy Density (SED), averaged in a circular control volume surrounding the point of stress singularities, represents a reliable engineering approach for assessing the brittle fracture of several brittle materials. It is worthy of notice that the application of SED criterion and the reliability of its results are strictly related to the proper determination of fracture parameters, i.e. the critical value of deformation energy Wc and the radius Rc of the control volume. This work presents an experimental methodology for their determination by means of notched specimens for different polyurethane densities, ranging from 100 to 651 kg/m3. Then, once obtained these critical parameters, the failure load in different types of notches and cracked specimens under mode I have been predicted. Moreover, for cracked specimens under mixed mode and mode II, the authors propose a personal approach that confirms PUR foams can be treated as brittle materials Strain Energy Density PUR foams Tensile fracture Critical radius Fracture parameters Mechanical engineering and machinery Structural engineering (General) SMJ. Razavi verfasserin aut F. Berto verfasserin aut J. Torgersen verfasserin aut L. Marsavina verfasserin aut In Frattura ed Integrità Strutturale Gruppo Italiano Frattura, 2008 11(2017), 42, Seite 214-222 (DE-627)561316589 (DE-600)2418303-9 19718993 nnns volume:11 year:2017 number:42 pages:214-222 https://doi.org/10.3221/IGF-ESIS.42.23 kostenfrei https://doaj.org/article/5eff322759774ab7a09843d294fa6218 kostenfrei http://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_23.pdf kostenfrei https://doaj.org/toc/1971-8993 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2017 42 214-222 |
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10.3221/IGF-ESIS.42.23 doi (DE-627)DOAJ06829641X (DE-599)DOAJ5eff322759774ab7a09843d294fa6218 DE-627 ger DE-627 rakwb eng TJ1-1570 TA630-695 M. Peron verfasserin aut Local strain energy density for the fracture assessment of polyurethane specimens weakened by notches of different shape 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Recent studies on local stress fields in proximity of crack and notch tips have shown that Strain Energy Density (SED), averaged in a circular control volume surrounding the point of stress singularities, represents a reliable engineering approach for assessing the brittle fracture of several brittle materials. It is worthy of notice that the application of SED criterion and the reliability of its results are strictly related to the proper determination of fracture parameters, i.e. the critical value of deformation energy Wc and the radius Rc of the control volume. This work presents an experimental methodology for their determination by means of notched specimens for different polyurethane densities, ranging from 100 to 651 kg/m3. Then, once obtained these critical parameters, the failure load in different types of notches and cracked specimens under mode I have been predicted. Moreover, for cracked specimens under mixed mode and mode II, the authors propose a personal approach that confirms PUR foams can be treated as brittle materials Strain Energy Density PUR foams Tensile fracture Critical radius Fracture parameters Mechanical engineering and machinery Structural engineering (General) SMJ. Razavi verfasserin aut F. Berto verfasserin aut J. Torgersen verfasserin aut L. Marsavina verfasserin aut In Frattura ed Integrità Strutturale Gruppo Italiano Frattura, 2008 11(2017), 42, Seite 214-222 (DE-627)561316589 (DE-600)2418303-9 19718993 nnns volume:11 year:2017 number:42 pages:214-222 https://doi.org/10.3221/IGF-ESIS.42.23 kostenfrei https://doaj.org/article/5eff322759774ab7a09843d294fa6218 kostenfrei http://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_23.pdf kostenfrei https://doaj.org/toc/1971-8993 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2017 42 214-222 |
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10.3221/IGF-ESIS.42.23 doi (DE-627)DOAJ06829641X (DE-599)DOAJ5eff322759774ab7a09843d294fa6218 DE-627 ger DE-627 rakwb eng TJ1-1570 TA630-695 M. Peron verfasserin aut Local strain energy density for the fracture assessment of polyurethane specimens weakened by notches of different shape 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Recent studies on local stress fields in proximity of crack and notch tips have shown that Strain Energy Density (SED), averaged in a circular control volume surrounding the point of stress singularities, represents a reliable engineering approach for assessing the brittle fracture of several brittle materials. It is worthy of notice that the application of SED criterion and the reliability of its results are strictly related to the proper determination of fracture parameters, i.e. the critical value of deformation energy Wc and the radius Rc of the control volume. This work presents an experimental methodology for their determination by means of notched specimens for different polyurethane densities, ranging from 100 to 651 kg/m3. Then, once obtained these critical parameters, the failure load in different types of notches and cracked specimens under mode I have been predicted. Moreover, for cracked specimens under mixed mode and mode II, the authors propose a personal approach that confirms PUR foams can be treated as brittle materials Strain Energy Density PUR foams Tensile fracture Critical radius Fracture parameters Mechanical engineering and machinery Structural engineering (General) SMJ. Razavi verfasserin aut F. Berto verfasserin aut J. Torgersen verfasserin aut L. Marsavina verfasserin aut In Frattura ed Integrità Strutturale Gruppo Italiano Frattura, 2008 11(2017), 42, Seite 214-222 (DE-627)561316589 (DE-600)2418303-9 19718993 nnns volume:11 year:2017 number:42 pages:214-222 https://doi.org/10.3221/IGF-ESIS.42.23 kostenfrei https://doaj.org/article/5eff322759774ab7a09843d294fa6218 kostenfrei http://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_23.pdf kostenfrei https://doaj.org/toc/1971-8993 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2017 42 214-222 |
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Local strain energy density for the fracture assessment of polyurethane specimens weakened by notches of different shape |
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Recent studies on local stress fields in proximity of crack and notch tips have shown that Strain Energy Density (SED), averaged in a circular control volume surrounding the point of stress singularities, represents a reliable engineering approach for assessing the brittle fracture of several brittle materials. It is worthy of notice that the application of SED criterion and the reliability of its results are strictly related to the proper determination of fracture parameters, i.e. the critical value of deformation energy Wc and the radius Rc of the control volume. This work presents an experimental methodology for their determination by means of notched specimens for different polyurethane densities, ranging from 100 to 651 kg/m3. Then, once obtained these critical parameters, the failure load in different types of notches and cracked specimens under mode I have been predicted. Moreover, for cracked specimens under mixed mode and mode II, the authors propose a personal approach that confirms PUR foams can be treated as brittle materials |
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Recent studies on local stress fields in proximity of crack and notch tips have shown that Strain Energy Density (SED), averaged in a circular control volume surrounding the point of stress singularities, represents a reliable engineering approach for assessing the brittle fracture of several brittle materials. It is worthy of notice that the application of SED criterion and the reliability of its results are strictly related to the proper determination of fracture parameters, i.e. the critical value of deformation energy Wc and the radius Rc of the control volume. This work presents an experimental methodology for their determination by means of notched specimens for different polyurethane densities, ranging from 100 to 651 kg/m3. Then, once obtained these critical parameters, the failure load in different types of notches and cracked specimens under mode I have been predicted. Moreover, for cracked specimens under mixed mode and mode II, the authors propose a personal approach that confirms PUR foams can be treated as brittle materials |
abstract_unstemmed |
Recent studies on local stress fields in proximity of crack and notch tips have shown that Strain Energy Density (SED), averaged in a circular control volume surrounding the point of stress singularities, represents a reliable engineering approach for assessing the brittle fracture of several brittle materials. It is worthy of notice that the application of SED criterion and the reliability of its results are strictly related to the proper determination of fracture parameters, i.e. the critical value of deformation energy Wc and the radius Rc of the control volume. This work presents an experimental methodology for their determination by means of notched specimens for different polyurethane densities, ranging from 100 to 651 kg/m3. Then, once obtained these critical parameters, the failure load in different types of notches and cracked specimens under mode I have been predicted. Moreover, for cracked specimens under mixed mode and mode II, the authors propose a personal approach that confirms PUR foams can be treated as brittle materials |
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Local strain energy density for the fracture assessment of polyurethane specimens weakened by notches of different shape |
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