Results 81 to 90 of about 7,049 (195)

STUDY ON CONSTITUTIVE MODEL AND MECHANICAL PROPERTIES OF 7003 ALUMINUM ALLOY

open access: yesJixie qiangdu, 2019
The stress-strain curves and fracture characteristics of 7003 aluminum alloy under different stress triaxiality and strain rates were obtained by dynamic and static tests,and the constitutive model of Johnson-Cook material with sensitive strain rate was ...
XU Yun, HU YuMei, ZHAO WeiMin, LI Jie
doaj  

Determination of the Fracture Locus of a Cor-Ten Steel at Low and High Triaxiality Ranges

open access: yesApplied Sciences
Cor-Ten steels, also known as weathering steels, are construction materials of growing importance in the field of architecture and crash barriers, not only due to their good mechanical and corrosion resistance properties but also for the appealing color ...
Axel Baruscotti   +2 more
doaj   +1 more source

Numerical simulation for studying constraint effect on ductile fracture initiation using complete Gurson model [PDF]

open access: yesFME Transactions, 2010
Ductile fracture initiation in high-strength low alloyed welded steel joints is predicted using micromechanical complete Gurson model (CGM). The crack tip constraint and variation of stress triaxiality in ligament are considered on single-edge notch bend
Junis Bašir   +3 more
doaj  

Fracture initiation in multi-phase materials: a systematic three-dimensional approach using a FFT-based solver

open access: yes, 2016
This paper studies a two-phase material with a microstructure composed of a hard brittle reinforcement phase embedded in a soft ductile matrix. It addresses the full three-dimensional nature of the microstructure and macroscopic deformation.
Appolaire, B.   +4 more
core   +3 more sources

Behaviour of concrete under triaxial stress

open access: yes, 2003
This research is to study the triaxial behaviour of concrete under monotonic and cyclic loading. To understand the role of cement mortar in the mechanical behaviour of concrete, triaxial behaviour of cement mortar was included.
Cheong, Hee Kiat.   +2 more
openaire   +1 more source

Analysis of time‐dependent mechanical behavior of polyethylene

open access: yesSPE Polymers
New data analysis based on a spring‐dashpot model is developed to provide very close simulation of stress variation in polyethylene (PE) when subjected to a multi‐relaxation (MR) test.
P.‐Y. Ben Jar
doaj   +1 more source

Failure Strain and Related Triaxiality of Aluminum 6061-T6, A36 Carbon Steel, 304 Stainless Steel, and Nitronic 60 Metals, Part I: Experimental Investigation

open access: yesMetals
The objective of this study is to develop failure-limit material models for Aluminum 6061-T6, A36 Carbon Steel, 304 Stainless Steel, and Nitronic 60 metals, based on parameters of plastic equivalent strain (failure strain) and stress triaxiality.
Ron Harwell   +2 more
doaj   +1 more source

An investigation of the plastic fracture of high strength steels [PDF]

open access: yes
Three generally recognized stages of plastic fracture in high strength steels are considered in detail. These stages consist of void initiation, void growth, and void coalescence.
Cox, T. B., Low, J. R., Jr.
core   +1 more source

FINITE ELEMENT STUDY OF VOID BEHAVIOR UNDER LOW STRESS TRIAXIALITY

open access: yesJixie qiangdu, 2017
Based on finite element simulation,a 3D cell model subjected to low stress triaxiality,with a spherical void located in center was developed. The distribution rule of stress and strain was investigated,as well as the developing trend of volume of void ...
LIU MeiMei, CHEN JianJun, PAN HongLiang
doaj  

Dual-scale modeling of temperature-dependent deformation and damage in martensitic steels

open access: yesJournal of Materials Research and Technology
Understanding the deformation and failure of martensitic steels under extreme service conditions is critical for ensuring the safety and reliability of industrial tooling and structural components.
Zhen Zhang   +2 more
doaj   +1 more source

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