Results 41 to 50 of about 2,731 (201)

Fracture mechanism and failure strain of TA31 titanium alloy for deep-sea pressure hulls based on continuum damage mechanics

open access: yesFrontiers in Materials, 2023
Titanium alloys has high fatigue resistance, high corrosion resistance, high temperature resistance, and other excellent properties, and have been widely used in deep-sea equipment and aviation industries.
Bowen Zhang, Zhengquan Wan
doaj   +1 more source

Ductile Fracture Analysis of High-strength Steel Bars Using Micromechanical GTN Model [PDF]

open access: yesJournal of Stress Analysis, 2018
Recent studies on the mechanics of materials have shown that the ductile fracture is significantly affected by the stress invariants among progressive plastic deformation.
H. Bahrami Ghalehjoogh, S.H. Hoseini
doaj   +1 more source

The Study and Application on Ductile Fracture Criterion of Dual Phase Steels During Forming

open access: yesMetals
High-strength steel exhibits complex fracture behavior due to the interplay between shear and necking mechanisms during stamping and forming processes, posing challenges to achieving the dimensional accuracy and reliability demanded for automotive body ...
Lianxing Zhao   +4 more
doaj   +1 more source

Effect of stress state on the fracture behavior of Al6061-T6 via combined experimental and numerical approaches

open access: yesForces in Mechanics
This study presents an experimental and numerical investigation into the influence of stress triaxiality, Lode angle parameter, and ductile fracture behavior in Al 6061-T6 aluminum alloy.
Mohsen Mansouri, Mehdi Ganjiani
doaj   +1 more source

Tube Expansion by Single Point Incremental Forming: An Experimental and Numerical Investigation

open access: yesMetals, 2021
In this paper, we revisit the formability of tube expansion by single point incremental forming to account for the material strain hardening and the non-proportional loading paths that were not taken into consideration in a previously published ...
Carlos Suntaxi   +4 more
doaj   +1 more source

RESEARCH ON THE RELATIONSHIP BETWEEN FRACTURE STRAIN AND TRIAXIALITY OF 6061-T6 ALUMINUM ALLOY

open access: yesJixie qiangdu, 2020
It has important theoretical significance and application value for analyzing the fracture failure process of 6061-T6 aluminum alloy to study the relationship between fracture strain and stress triaxiality and establish the fracture failure model.
YI HaiJiao   +4 more
doaj  

基于多尺度晶体塑性有限元的GCr15轴承钢拉-压不对称性研究

open access: yesJixie qiangdu, 2021
In this paper,stress triaxiality is added to the classical crystal plasticity constitutive model to investigate the experimental phenomenon of tension-compression asymmetry for the GCr15 bearing steel.Firstly, the crystal plasticity constitutive model is
樊冬, 余丰, 李淑欣
doaj  

Phenomenological 2D and 3D Models of Ductile Fracture for Girth Weld of X80 Pipeline

open access: yesBuildings, 2023
Welding is the main method for oil/gas steel pipeline connection, and a large number of girth welds are a weak part of the pipeline. Under extremely complex loads, a steel pipeline undergoes significant plastic deformations and eventually leads to ...
Naixian Li   +4 more
doaj   +1 more source

Extension of a shear-controlled ductile fracture model considering the stress triaxiality and the Lode parameter

open access: yes, 2013
This paper is concerned with the extension of a shear-controlled ductile fracture criterion for accurate prediction of fracture forming limit diagrams (FFLD) in sheet metal forming processes. A shear-controlled ductile fracture criterion is extended to a
Y Lou (13361421), H Huh (13285008)
core   +2 more sources

The cohesive band model: a cohesive surface formulation with stress triaxiality [PDF]

open access: yesInternational Journal of Fracture, 2013
In the cohesive surface model cohesive tractions are transmitted across a two-dimensional surface, which is embedded in a three-dimensional continuum. The relevant kinematic quantities are the local crack opening displacement and the crack sliding displacement, but there is no kinematic quantity that represents the stretching of the fracture plane.
Remmers, J.J.C.   +3 more
openaire   +2 more sources

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