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A Continuous Damage Mechanics Model for Ductile Fracture
Journal of Engineering Materials and Technology, Transactions of the ASME, 1985 A model of isotropic ductile plastic damage based on a continuum damage variable, on the effective stress concept and on thermodynamics is derived. The damage is linear with equivalent strain and shows a large influence of triaxiality by means of a damage equivalent stress. Identification for several metals is made by means of elasticity modulus change
Jean Lemaitre, Lemaitre Jean
exaly +3 more sources
Analyses of Stress-State-Dependent Ductile Damage and Fracture Behavior of Zirconium. [PDF]
Materials (Basel)In this study, the fracture behavior of zirconium was investigated by a hybrid experimental and numerical simulation method. Uniaxial tensile tests were conducted on samples of various geometries, thereby covering a wide range of stress states at fracture characterized by stress triaxiality between 0.05 and 0.96 and Lode angle parameter between 0.01 ...
Pan B +5 more
europepmc +5 more sources
Fracture and Structural Integrity, 2020 Initiation and propagation of ductile fractures are major consideration during the design of high-pressure pipelines. Consequences of a pipeline failure can be catastrophic thus structural integrity must be ensured over several decades.
Benot Paermentier +2 more
doaj +5 more sources
Gradient‐enhanced damage growth modeling of ductile fracture [PDF]
International Journal for Numerical Methods in Engineering, 2021 AbstractWe present a gradient‐enhanced damage model for ductile fracture modeling, describing the degraded material response coupled to temperature. Continuum thermodynamics is used to represent components of the energy dissipation as induced by the effective material response, thermal effects, and damage evolution.
Ragnar Larsson, Ahmet S. Ertürk
openaire +2 more sources
Nihon Kikai Gakkai ronbunshu, 2023 This study aims to develop a numerical simulation-based method for predicting ductile crack growth resistance curve (R-curve) for pre-strained components for rational assessment of ductile crack growth controlling fracture for pre-strained structural ...
Mitsuru OHATA +5 more
doaj +1 more source
Chinese Journal of Mechanical Engineering, 2021 Ductile fracture of metal often occurs in the plastic forming process of parts. The establishment of ductile fracture criterion can effectively guide the selection of process parameters and avoid ductile fracture of parts during machining. The 3D ductile
Jianye Gao +5 more
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An overview of application of micromechanical models in ductile fracture analysis of welded joints [PDF]
Theoretical and Applied Mechanics, 2020 Fracture of welded joints has been an important research and industrial topic for a long time, having in mind the key role of welded joints in ensuring the safe operation and integrity of welded structures.
Rakin M. +3 more
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Uncoupled ductile fracture criterion and its application in aeronautical metallic materials
Journal of Aeronautical Materials, 2021 Structural lightweight is an important development trend in aerospace and automotive fields, and the demand for lightweight metal materials represented by aluminum alloy, magnesium alloy, and titanium alloy is increasing continuously.
MA Hongyue +4 more
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한국해양공학회지, 2020 Ductile fracture prediction is critical for the reasonable damage extent assessment of ships and offshore structures subjected to accidental loads, such as ship collisions and groundings.
Sung-Ju Park, Joonmo Choung
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Damage accumulation of bovine bone under variable amplitude loads
Bone Reports, 2016 Stress fractures, a painful injury, are caused by excessive fatigue in bone. This study on damage accumulation in bone sought to determine if the Palmgren-Miner rule (PMR), a well-known linear damage accumulation hypothesis, is predictive of fatigue ...
Abbey M. Campbell +3 more
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