Results 31 to 40 of about 2,731 (201)

How stress triaxiality affects cavitation damage in high-density polyethylene: Experiments and constitutive modeling

open access: yesPolymer Testing, 2021
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

open access: yesEngineering, Technology & Applied Science Research, 2013
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

Effect of the Stress State Triaxiality on the Value of Limit Strain of Micro-Void Development in S235JR Steel - Numerical Analysis

open access: yes, 2011
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

open access: yes, 2008
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
core   +1 more source

On Phenomenological Failure Loci of Metals under Constant Stress States of Combined Tension and Shear: Issues of Coaxiality and Non-Uniqueness

open access: yesMetals, 2019
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

open access: yesAdvances in Materials Science and Engineering, 2020
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

open access: yes, 2015
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
core   +1 more source

A stress-based shear fracture criterion considering the effect of stress triaxiality and Lode parameter

open access: yes, 2022
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

open access: yesMATEC Web of Conferences, 2016
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

Size effect on the shear damage under low stress triaxiality in micro-scaled plastic deformation of metallic materials

open access: yesMaterials & Design, 2020
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

Home - About - Disclaimer - Privacy