Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing

Concrete additive manufacturing (AM) is an emerging technology that enables the fabrication of complex and efficient geometries with intricate features. Here, the mechanical performance of bio-inspired sinusoidally architected concrete is investigated in comparison to monolithic, cast counterparts....
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Autor*in:	Arjun Prihar [verfasserIn] Maria E.M. Garlock [verfasserIn] Aimane Najmeddine [verfasserIn] Reza Moini [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2024

Schlagwörter:	Architected materials Sinusoidal Additive manufacturing Concrete Fracture

Übergeordnetes Werk:	In: Materials & Design - Elsevier, 2019, 238(2024), Seite 112671-
Übergeordnetes Werk:	volume:238 ; year:2024 ; pages:112671-

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1016/j.matdes.2024.112671

Katalog-ID:	DOAJ100784127

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520			\|a Concrete additive manufacturing (AM) is an emerging technology that enables the fabrication of complex and efficient geometries with intricate features. Here, the mechanical performance of bio-inspired sinusoidally architected concrete is investigated in comparison to monolithic, cast counterparts. A robotic additive manufacturing process was utilized to fabricate sinusoidal architectures in three orientations (denoted X, Y, and Z) and two rectilinear architectures and compared to conventionally cast specimens of equivalent geometries. Single-edge bend and single-edge-notched bend experiments were performed to test the strength and fracture toughness, respectively. Unlike rectilinear architectures, the X and Z-Sinusoidal architected concrete elicited a flexural strength and fracture toughness statistically equivalent to cast counterparts, whereas the Y-Sinusoidal architecture exhibited a 71 % increase in flexural strength as compared to the cast counterparts. Finite element simulations were carried out to evaluate the effect of sinusoidal frequency and amplitude on stress distribution through the test specimens. In addition, a theoretical analysis of stress concentration was conducted to understand the role of sinusoidal perturbation from surface to core. The sinusoidal architectures were observed to produce stress concentrations and non-uniform stress profiles (depending on two design variables, i.e., amplitude, A, and wavelength, λ), which led to outperforming rectilinear additively manufactured and cast counterparts.
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700	0		\|a Reza Moini \|e verfasserin \|4 aut
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spelling	10.1016/j.matdes.2024.112671 doi (DE-627)DOAJ100784127 (DE-599)DOAJ1fffd3b57f7d404fa6a2f93abb16ae9d DE-627 ger DE-627 rakwb eng TA401-492 Arjun Prihar verfasserin aut Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Concrete additive manufacturing (AM) is an emerging technology that enables the fabrication of complex and efficient geometries with intricate features. Here, the mechanical performance of bio-inspired sinusoidally architected concrete is investigated in comparison to monolithic, cast counterparts. A robotic additive manufacturing process was utilized to fabricate sinusoidal architectures in three orientations (denoted X, Y, and Z) and two rectilinear architectures and compared to conventionally cast specimens of equivalent geometries. Single-edge bend and single-edge-notched bend experiments were performed to test the strength and fracture toughness, respectively. Unlike rectilinear architectures, the X and Z-Sinusoidal architected concrete elicited a flexural strength and fracture toughness statistically equivalent to cast counterparts, whereas the Y-Sinusoidal architecture exhibited a 71 % increase in flexural strength as compared to the cast counterparts. Finite element simulations were carried out to evaluate the effect of sinusoidal frequency and amplitude on stress distribution through the test specimens. In addition, a theoretical analysis of stress concentration was conducted to understand the role of sinusoidal perturbation from surface to core. The sinusoidal architectures were observed to produce stress concentrations and non-uniform stress profiles (depending on two design variables, i.e., amplitude, A, and wavelength, λ), which led to outperforming rectilinear additively manufactured and cast counterparts. Architected materials Sinusoidal Additive manufacturing Concrete Fracture Materials of engineering and construction. Mechanics of materials Maria E.M. Garlock verfasserin aut Aimane Najmeddine verfasserin aut Reza Moini verfasserin aut In Materials & Design Elsevier, 2019 238(2024), Seite 112671- (DE-627)32052857X (DE-600)2015480-X 18734197 nnns volume:238 year:2024 pages:112671- https://doi.org/10.1016/j.matdes.2024.112671 kostenfrei https://doaj.org/article/1fffd3b57f7d404fa6a2f93abb16ae9d kostenfrei http://www.sciencedirect.com/science/article/pii/S0264127524000431 kostenfrei https://doaj.org/toc/0264-1275 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_2034 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_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 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_4012 GBV_ILN_4035 GBV_ILN_4037 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 AR 238 2024 112671-
allfields_unstemmed	10.1016/j.matdes.2024.112671 doi (DE-627)DOAJ100784127 (DE-599)DOAJ1fffd3b57f7d404fa6a2f93abb16ae9d DE-627 ger DE-627 rakwb eng TA401-492 Arjun Prihar verfasserin aut Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Concrete additive manufacturing (AM) is an emerging technology that enables the fabrication of complex and efficient geometries with intricate features. Here, the mechanical performance of bio-inspired sinusoidally architected concrete is investigated in comparison to monolithic, cast counterparts. A robotic additive manufacturing process was utilized to fabricate sinusoidal architectures in three orientations (denoted X, Y, and Z) and two rectilinear architectures and compared to conventionally cast specimens of equivalent geometries. Single-edge bend and single-edge-notched bend experiments were performed to test the strength and fracture toughness, respectively. Unlike rectilinear architectures, the X and Z-Sinusoidal architected concrete elicited a flexural strength and fracture toughness statistically equivalent to cast counterparts, whereas the Y-Sinusoidal architecture exhibited a 71 % increase in flexural strength as compared to the cast counterparts. Finite element simulations were carried out to evaluate the effect of sinusoidal frequency and amplitude on stress distribution through the test specimens. In addition, a theoretical analysis of stress concentration was conducted to understand the role of sinusoidal perturbation from surface to core. The sinusoidal architectures were observed to produce stress concentrations and non-uniform stress profiles (depending on two design variables, i.e., amplitude, A, and wavelength, λ), which led to outperforming rectilinear additively manufactured and cast counterparts. Architected materials Sinusoidal Additive manufacturing Concrete Fracture Materials of engineering and construction. Mechanics of materials Maria E.M. Garlock verfasserin aut Aimane Najmeddine verfasserin aut Reza Moini verfasserin aut In Materials & Design Elsevier, 2019 238(2024), Seite 112671- (DE-627)32052857X (DE-600)2015480-X 18734197 nnns volume:238 year:2024 pages:112671- https://doi.org/10.1016/j.matdes.2024.112671 kostenfrei https://doaj.org/article/1fffd3b57f7d404fa6a2f93abb16ae9d kostenfrei http://www.sciencedirect.com/science/article/pii/S0264127524000431 kostenfrei https://doaj.org/toc/0264-1275 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_2034 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_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 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_4012 GBV_ILN_4035 GBV_ILN_4037 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 AR 238 2024 112671-
allfieldsGer	10.1016/j.matdes.2024.112671 doi (DE-627)DOAJ100784127 (DE-599)DOAJ1fffd3b57f7d404fa6a2f93abb16ae9d DE-627 ger DE-627 rakwb eng TA401-492 Arjun Prihar verfasserin aut Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Concrete additive manufacturing (AM) is an emerging technology that enables the fabrication of complex and efficient geometries with intricate features. Here, the mechanical performance of bio-inspired sinusoidally architected concrete is investigated in comparison to monolithic, cast counterparts. A robotic additive manufacturing process was utilized to fabricate sinusoidal architectures in three orientations (denoted X, Y, and Z) and two rectilinear architectures and compared to conventionally cast specimens of equivalent geometries. Single-edge bend and single-edge-notched bend experiments were performed to test the strength and fracture toughness, respectively. Unlike rectilinear architectures, the X and Z-Sinusoidal architected concrete elicited a flexural strength and fracture toughness statistically equivalent to cast counterparts, whereas the Y-Sinusoidal architecture exhibited a 71 % increase in flexural strength as compared to the cast counterparts. Finite element simulations were carried out to evaluate the effect of sinusoidal frequency and amplitude on stress distribution through the test specimens. In addition, a theoretical analysis of stress concentration was conducted to understand the role of sinusoidal perturbation from surface to core. The sinusoidal architectures were observed to produce stress concentrations and non-uniform stress profiles (depending on two design variables, i.e., amplitude, A, and wavelength, λ), which led to outperforming rectilinear additively manufactured and cast counterparts. Architected materials Sinusoidal Additive manufacturing Concrete Fracture Materials of engineering and construction. Mechanics of materials Maria E.M. Garlock verfasserin aut Aimane Najmeddine verfasserin aut Reza Moini verfasserin aut In Materials & Design Elsevier, 2019 238(2024), Seite 112671- (DE-627)32052857X (DE-600)2015480-X 18734197 nnns volume:238 year:2024 pages:112671- https://doi.org/10.1016/j.matdes.2024.112671 kostenfrei https://doaj.org/article/1fffd3b57f7d404fa6a2f93abb16ae9d kostenfrei http://www.sciencedirect.com/science/article/pii/S0264127524000431 kostenfrei https://doaj.org/toc/0264-1275 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_2034 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_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 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_4012 GBV_ILN_4035 GBV_ILN_4037 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 AR 238 2024 112671-
allfieldsSound	10.1016/j.matdes.2024.112671 doi (DE-627)DOAJ100784127 (DE-599)DOAJ1fffd3b57f7d404fa6a2f93abb16ae9d DE-627 ger DE-627 rakwb eng TA401-492 Arjun Prihar verfasserin aut Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Concrete additive manufacturing (AM) is an emerging technology that enables the fabrication of complex and efficient geometries with intricate features. Here, the mechanical performance of bio-inspired sinusoidally architected concrete is investigated in comparison to monolithic, cast counterparts. A robotic additive manufacturing process was utilized to fabricate sinusoidal architectures in three orientations (denoted X, Y, and Z) and two rectilinear architectures and compared to conventionally cast specimens of equivalent geometries. Single-edge bend and single-edge-notched bend experiments were performed to test the strength and fracture toughness, respectively. Unlike rectilinear architectures, the X and Z-Sinusoidal architected concrete elicited a flexural strength and fracture toughness statistically equivalent to cast counterparts, whereas the Y-Sinusoidal architecture exhibited a 71 % increase in flexural strength as compared to the cast counterparts. Finite element simulations were carried out to evaluate the effect of sinusoidal frequency and amplitude on stress distribution through the test specimens. In addition, a theoretical analysis of stress concentration was conducted to understand the role of sinusoidal perturbation from surface to core. The sinusoidal architectures were observed to produce stress concentrations and non-uniform stress profiles (depending on two design variables, i.e., amplitude, A, and wavelength, λ), which led to outperforming rectilinear additively manufactured and cast counterparts. Architected materials Sinusoidal Additive manufacturing Concrete Fracture Materials of engineering and construction. Mechanics of materials Maria E.M. Garlock verfasserin aut Aimane Najmeddine verfasserin aut Reza Moini verfasserin aut In Materials & Design Elsevier, 2019 238(2024), Seite 112671- (DE-627)32052857X (DE-600)2015480-X 18734197 nnns volume:238 year:2024 pages:112671- https://doi.org/10.1016/j.matdes.2024.112671 kostenfrei https://doaj.org/article/1fffd3b57f7d404fa6a2f93abb16ae9d kostenfrei http://www.sciencedirect.com/science/article/pii/S0264127524000431 kostenfrei https://doaj.org/toc/0264-1275 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_2034 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_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 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_4012 GBV_ILN_4035 GBV_ILN_4037 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 AR 238 2024 112671-
language	English
source	In Materials & Design 238(2024), Seite 112671- volume:238 year:2024 pages:112671-
sourceStr	In Materials & Design 238(2024), Seite 112671- volume:238 year:2024 pages:112671-
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Architected materials Sinusoidal Additive manufacturing Concrete Fracture Materials of engineering and construction. Mechanics of materials
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container_title	Materials & Design
authorswithroles_txt_mv	Arjun Prihar @@aut@@ Maria E.M. Garlock @@aut@@ Aimane Najmeddine @@aut@@ Reza Moini @@aut@@
publishDateDaySort_date	2024-01-01T00:00:00Z
hierarchy_top_id	32052857X
id	DOAJ100784127
language_de	englisch
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callnumber-first	T - Technology
author	Arjun Prihar
spellingShingle	Arjun Prihar misc TA401-492 misc Architected materials misc Sinusoidal misc Additive manufacturing misc Concrete misc Fracture misc Materials of engineering and construction. Mechanics of materials Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing
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topic_title	TA401-492 Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing Architected materials Sinusoidal Additive manufacturing Concrete Fracture
topic	misc TA401-492 misc Architected materials misc Sinusoidal misc Additive manufacturing misc Concrete misc Fracture misc Materials of engineering and construction. Mechanics of materials
topic_unstemmed	misc TA401-492 misc Architected materials misc Sinusoidal misc Additive manufacturing misc Concrete misc Fracture misc Materials of engineering and construction. Mechanics of materials
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title	Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing
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title_full	Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing
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title_sort	mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing
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title_auth	Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing
abstract	Concrete additive manufacturing (AM) is an emerging technology that enables the fabrication of complex and efficient geometries with intricate features. Here, the mechanical performance of bio-inspired sinusoidally architected concrete is investigated in comparison to monolithic, cast counterparts. A robotic additive manufacturing process was utilized to fabricate sinusoidal architectures in three orientations (denoted X, Y, and Z) and two rectilinear architectures and compared to conventionally cast specimens of equivalent geometries. Single-edge bend and single-edge-notched bend experiments were performed to test the strength and fracture toughness, respectively. Unlike rectilinear architectures, the X and Z-Sinusoidal architected concrete elicited a flexural strength and fracture toughness statistically equivalent to cast counterparts, whereas the Y-Sinusoidal architecture exhibited a 71 % increase in flexural strength as compared to the cast counterparts. Finite element simulations were carried out to evaluate the effect of sinusoidal frequency and amplitude on stress distribution through the test specimens. In addition, a theoretical analysis of stress concentration was conducted to understand the role of sinusoidal perturbation from surface to core. The sinusoidal architectures were observed to produce stress concentrations and non-uniform stress profiles (depending on two design variables, i.e., amplitude, A, and wavelength, λ), which led to outperforming rectilinear additively manufactured and cast counterparts.
abstractGer	Concrete additive manufacturing (AM) is an emerging technology that enables the fabrication of complex and efficient geometries with intricate features. Here, the mechanical performance of bio-inspired sinusoidally architected concrete is investigated in comparison to monolithic, cast counterparts. A robotic additive manufacturing process was utilized to fabricate sinusoidal architectures in three orientations (denoted X, Y, and Z) and two rectilinear architectures and compared to conventionally cast specimens of equivalent geometries. Single-edge bend and single-edge-notched bend experiments were performed to test the strength and fracture toughness, respectively. Unlike rectilinear architectures, the X and Z-Sinusoidal architected concrete elicited a flexural strength and fracture toughness statistically equivalent to cast counterparts, whereas the Y-Sinusoidal architecture exhibited a 71 % increase in flexural strength as compared to the cast counterparts. Finite element simulations were carried out to evaluate the effect of sinusoidal frequency and amplitude on stress distribution through the test specimens. In addition, a theoretical analysis of stress concentration was conducted to understand the role of sinusoidal perturbation from surface to core. The sinusoidal architectures were observed to produce stress concentrations and non-uniform stress profiles (depending on two design variables, i.e., amplitude, A, and wavelength, λ), which led to outperforming rectilinear additively manufactured and cast counterparts.
abstract_unstemmed	Concrete additive manufacturing (AM) is an emerging technology that enables the fabrication of complex and efficient geometries with intricate features. Here, the mechanical performance of bio-inspired sinusoidally architected concrete is investigated in comparison to monolithic, cast counterparts. A robotic additive manufacturing process was utilized to fabricate sinusoidal architectures in three orientations (denoted X, Y, and Z) and two rectilinear architectures and compared to conventionally cast specimens of equivalent geometries. Single-edge bend and single-edge-notched bend experiments were performed to test the strength and fracture toughness, respectively. Unlike rectilinear architectures, the X and Z-Sinusoidal architected concrete elicited a flexural strength and fracture toughness statistically equivalent to cast counterparts, whereas the Y-Sinusoidal architecture exhibited a 71 % increase in flexural strength as compared to the cast counterparts. Finite element simulations were carried out to evaluate the effect of sinusoidal frequency and amplitude on stress distribution through the test specimens. In addition, a theoretical analysis of stress concentration was conducted to understand the role of sinusoidal perturbation from surface to core. The sinusoidal architectures were observed to produce stress concentrations and non-uniform stress profiles (depending on two design variables, i.e., amplitude, A, and wavelength, λ), which led to outperforming rectilinear additively manufactured and cast counterparts.
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title_short	Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing
url	https://doi.org/10.1016/j.matdes.2024.112671 https://doaj.org/article/1fffd3b57f7d404fa6a2f93abb16ae9d http://www.sciencedirect.com/science/article/pii/S0264127524000431 https://doaj.org/toc/0264-1275
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In addition, a theoretical analysis of stress concentration was conducted to understand the role of sinusoidal perturbation from surface to core. 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Mechanical performance of sinusoidally architected concrete enabled by robotic additive manufacturing

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