Results 41 to 50 of about 176 (139)
Grain modeling and finite element simulation of damage evolution for AA5182-O aluminum alloy sheet
Journal of Materials Research and Technology, 2020 The evolution of crystal damage in rolled AA5182-O aluminum alloy sheet was studied by experiment and finite element simulation in this paper. Grain size characteristic on rolling anisotropy was determined by electron backscatter diffraction (EBSD) test ...
Gui Li, Saisai Cui
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Mathematical Problems in Engineering, Volume 2019, Issue 1, 2019., 2019 Electrochemical accelerated corrosion and tensile tests were conducted on six series of 30 stud specimens in this study to assess the various mechanical properties in corroded stud connectors. The results indicate that there is a gradual decline in mechanical properties (e.g., yield strength, ultimate strength, and plasticity) as stud corrosion rate ...
Bing Wang +3 more
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Journal of Materials Research and Technology, 2022 Based on the Gurson-Tvergaard-Needleman (GTN) damage model, the damage evolution and ductile fracture of 7075 aluminum alloy sheets during the tensile process were predicted. First, the true stress–strain curve and micro morphology of 7075 aluminum alloy
Hongchao Ji +4 more
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The numerical modeling of failure of S235JR steel using Gurson-Tvergaard-Needleman material model
Roads and Bridges - Drogi i Mosty, 2012 The paper presents assumptions of the Gurson-Tvergaard-Needleman (GTN) model for a porous materials, which is now one of the basic damage material models applied in the analysis of the load-bearing capacity of metal engineering structures. The practical information about the selection of GTN material parameters and performing numerical calculations is ...
openaire +1 more source
Proceedings in Applied Mathematics and Mechanics, Volume 24, Issue 2, August 2024.Abstract Hydrogen embrittlement in ductile metals, such as steel, is a significant concern, for instance, in the safety assessment of existing pipeline infrastructure intended for hydrogen transport. The ductile damage mechanism in steels is characterized by the nucleation, growth, and coalescence of microvoids, which is further enhanced by the ...
Siddhi Avinash Patil +4 more
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Science and Technology of Nuclear Installations, Volume 2019, Issue 1, 2019., 2019 A fracture criterion is newly proposed to evaluate fracture behavior and predict fracture initiation of metal materials in different complicated stress states for four different fracture mechanisms including quasicleavage fracture, normal fracture with void, shear fracture with void, and shear fracture without void.
Zhihui Li +3 more
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Effect of Initial Porosity on Material Response Under Multi-Axial Stress State for S235JR Steel
Archives of Civil Engineering, 2012 The effect of the initial porosity on the material response under multi-axial stress state for S235JR steel using the Gurson-Tvergaard-Needleman (GTN) material model was examined.
Kossakowski P.G.
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A Ductile Fracture Phase Field Model Based on Strain Rate‐Dependent Fracture Toughness
Modelling and Simulation in Engineering, Volume 2024, Issue 1, 2024.The numerical simulation of ductile fracture failure plays an important role in the evaluation of the integrity of engineering structures with the development of computing science and technology. As a competitive approach to predict fractures, the phase field model has been developed for about two decades to deal with a variety of crack growth problems.
Qianyu Shi +5 more
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Numerical Study on Ductile Failure Behaviours of Steel Structures under Quasi-Static Punch Loading
Journal of Marine Science and Engineering, 2023 A reliable finite element procedure to simulate shear-dominated ductile fractures in large-scale, thin-walled steel structures is still evolving primarily due to the challenges in determining the failure criterion of metal materials under complex stress ...
Wei Cai +6 more
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Advances in Civil Engineering, Volume 2018, Issue 1, 2018., 2018 A footing‐to‐reinforced concrete (RC) pier connection resists the lateral load induced by earthquakes as well as the gravity load. The footing‐to‐RC pier connection is the vulnerable part to strong earthquake loading. Several studies have been conducted on improving the seismic performance of the connection by using high‐strength reinforcing bars and ...
Jung-Kyun Kim +4 more
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