Results 31 to 40 of about 2,731 (201)
The aim of this article is to investigate how the stress triaxiality affects the plastic deformation behavior of high-density polyethylene using an approach combining experiments and micromechanics-based modeling.
Amar Mesbah +5 more
doaj +1 more source
Effect of the Triaxiality in Plane Stress Conditions. Triaxiality Effect in a PVC Material
Polymer materials are gaining more and more importance in engineering applications. A new methodology of analysis is required in order to assess the capability of such material in withstanding complex loads. Therefore, the behavior of these materials currently arouses a great research interest.
N. Selini, M. Elmeguenni, M. Benguediab
openaire +2 more sources
This paper deals with the numerical analysis of plastic deformation and damage development in S235JR steel in complex stress states. The material Gurson Tvergaard Needleman (GTN) model was applied. The analysis was performed for notched bars subjected to
Wiktor Wcislik
core +1 more source
Metal ductility at low stress triaxiality application to sheet trimming
International audienceThe growth and coalescence of voids nucleated by decohesion or cracking of second phase particles is a common damage process for many metallic alloys.
Daniel, D. +8 more
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The present study investigates how the choice of characterization test and the composition of the stress state in terms of tension and shear can produce a non-unique failure locus in terms of stress triaxiality under plane stress conditions.
Cliff Butcher, Armin Abedini
doaj +1 more source
Numerical Modeling of Stress Disturbance Characteristics during Tunnel Excavation
The stress state and principal stress axis changes of the stress-field tensor are analyzed during the advancement of a tunnel face on the basis of a given case study of the Jinping II Hydropower Station in China.
Zeqi Zhu +3 more
doaj +1 more source
Stress triaxiality and Lode angle along surfaces of elastoplastic structures
International audienceExpressions for the stress triaxiality and the Lode angle along surfaces of elastoplastic structures are established in case of monotonic loading.
Darlet, Adrien, Desmorat, Rodrigue
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A stress-based shear fracture criterion considering the effect of stress triaxiality and Lode ...
Y Lou (13361421) +6 more
core
Evaluation of ductile failure models in Sheet Metal Forming
Traditionally, combination of equivalent plastic strain and stress triaxiality parameters are taken into account when performing characterization of material ductility.
Amaral Rui +4 more
doaj +1 more source
Micro-forming is one of the major micro-manufacturing methods with promising application potentials, in which the damage response and fracture behavior need to be insightfully addressed.
Jilai Wang +5 more
doaj +1 more source

