Impact test behavior of aluminum alloys ...
Document type :
Compte-rendu et recension critique d'ouvrage
DOI :
Title :
Impact test behavior of aluminum alloys welded joints: Experimental and numerical analysis
Author(s) :
Frutos Martínez, José [Auteur]
Ambriz, Ricardo [Auteur]
Naït‐abdelaziz, Moussa [Auteur]
Université de Lille
Unité de Mécanique de Lille - ULR 7512 [UML]
Jaramillo, David [Auteur]
Ambriz, Ricardo [Auteur]
Naït‐abdelaziz, Moussa [Auteur]
Université de Lille
Unité de Mécanique de Lille - ULR 7512 [UML]
Jaramillo, David [Auteur]
Journal title :
Fatigue and Fracture of Engineering Materials and Structures
Pages :
2119-2134
Publisher :
Wiley-Blackwell
Publication date :
2021-04-28
ISSN :
8756-758X
HAL domain(s) :
Sciences de l'ingénieur [physics]
English abstract : [en]
Abstract The Charpy impact test behavior of base metal, weld metal, and heat‐affected zone for 6061‐T6 and 7075‐T651 aluminum alloy welds was analyzed. Force versus time curves of welded joints were obtained by means of ...
Show more >Abstract The Charpy impact test behavior of base metal, weld metal, and heat‐affected zone for 6061‐T6 and 7075‐T651 aluminum alloy welds was analyzed. Force versus time curves of welded joints were obtained by means of an instrumented Charpy pendulum. An explicit finite element model was implemented to evaluate the performance of the Cowper–Symonds constitutive model. Parameters were obtained through a strain‐rate‐sensitivity analysis of base metals at high strain rates. Experimental results were compared with those computed by finite element method (FEM) by assuming the same physical and geometrical conditions of the dynamic‐experimental tests. ANSYS‐LS DYNA was used to achieve the FEM simulations. The comparison between experimental and FEM results in terms of force versus time data was evaluated. Higher accuracies were observed in Al 7075‐T651 alloy (roughly 98%). The 6061‐T6 alloy has shown an approximation of about 90%. Discrepancies are explained in terms of the effective plastic strain at fracture.Show less >
Show more >Abstract The Charpy impact test behavior of base metal, weld metal, and heat‐affected zone for 6061‐T6 and 7075‐T651 aluminum alloy welds was analyzed. Force versus time curves of welded joints were obtained by means of an instrumented Charpy pendulum. An explicit finite element model was implemented to evaluate the performance of the Cowper–Symonds constitutive model. Parameters were obtained through a strain‐rate‐sensitivity analysis of base metals at high strain rates. Experimental results were compared with those computed by finite element method (FEM) by assuming the same physical and geometrical conditions of the dynamic‐experimental tests. ANSYS‐LS DYNA was used to achieve the FEM simulations. The comparison between experimental and FEM results in terms of force versus time data was evaluated. Higher accuracies were observed in Al 7075‐T651 alloy (roughly 98%). The 6061‐T6 alloy has shown an approximation of about 90%. Discrepancies are explained in terms of the effective plastic strain at fracture.Show less >
Language :
Anglais
Popular science :
Non
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