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The Study and Application on Ductile Fracture Criterion of Dual Phase Steels During Forming
MetalsHigh-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
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Ductile Fracture Analysis of High-strength Steel Bars Using Micromechanical GTN Model [PDF]
Journal 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
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Ductility Tuning via Cluster Network Characteristics of Porous Components
Advanced Materials Technologies, EarlyView.Network optimization via cluster characteristics induced by interaction of stress concentration is proposed, demonstrating increased cluster size and dispersion in non‐uniform porous components. The optimized structures exhibit, for the first time, that enhanced ductility and damage progression is controllable through zigzag cluster network designed by
Ryota Toyoba +4 more
wiley +1 more source
Forces in MechanicsThis 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
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Phenomenological modeling of strain hardening, phase transformation and damage effects of trip-steels [PDF]
, 2017 In this study, the constitutive modeling of loading state dependent strain hardening and martensite evolution of high alloyed TRIP-steels are addressed, which are experimentally observed comparing uni-axial tension and compression test results ...
Kuna, Meinhard, Seupel, Andreas
core
Experimental and numerical analysis of micromechanical damage in the punching process for High-Strength Low-Alloy steels [PDF]
, 2014 Sequential sheet metal forming processes can result in the accumulation of work hardening and damage effects in the workpiece material. The mechanical strength of the final component depends on the “evolution” of these two characteristics in the ...
ACHOURI, Mohamed +3 more
core +3 more sources
A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels
Advanced Robotics Research, EarlyView.A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du +5 more
wiley +1 more source
RESEARCH ON THE RELATIONSHIP BETWEEN FRACTURE STRAIN AND TRIAXIALITY OF 6061-T6 ALUMINUM ALLOY
Jixie 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
Jixie 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
Development of a Microscopic Damage Model for Low Stress Triaxiality [PDF]
Key Engineering Materials, 2011 This work dealsa contribution to ductile damageof High-Strength Low-Alloy (HSLA) steel under low stress triaxiality. This work is based on micrographics observations and in-situ shear tests to examine the evolution of microstructure in this kind of loading and to identify the damage process associated. Numerical simulations by finites elements has been
Mohamed Achouri +5 more
openaire +3 more sources