Results 41 to 50 of about 27,476 (261)

Strain Gradient Plasticity Analysis of Amorphous Plasticity

Procedia Structural Integrity
Amorphous materials lack a defined crystalline structure, exhibiting a disordered atomic arrangement that imparts superb mechanical properties and great potential for applications in many areas. Because of their disordered nature, metallic glasses exhibit dramatically different deformation behaviours than crystalline materials.
Izzet Erkin Ünsal, Tuncay Yalçinkaya
openaire   +4 more sources

Strength and plasticity of Cr/CrXN multilayers with gradient nanoarchitectures

Materials Research Letters
Refining grain size and enhancing thermally assisted grain boundary activation are fundamental strategies for improving the plasticity of high-strength ceramic materials.
Heda Bai, Jin Li, Lichen Bai, Miao Song, Shijian Zheng, Hualong Ge, Junjie He, Jinyang Ni, Xuesong Leng, Yifan Huang, Xiangli Liu   +10 more
doaj   +1 more source

Numerical simulation of bearing capacity of a strip footing on strain-softening soil ground

Yantu gongcheng xuebao, 2019
To overcome the mesh sensitivity induced by strain softening, an implicit gradient plasticity model is put forward to simulate the bearing capacity of a rigid strip foundation on strain-softening soil.
LÜ Xi-lin 1, 2, XUE Da-wei 1, 2
doaj   +1 more source

Establishment of damage estimation rule for brittle fracture after cyclic plastic prestrain in steel [PDF]

MATEC Web of Conferences, 2019
Material damage caused by complicated prestrain like cyclic prestrain and various direction prestrain. It is so important to understand the mechanism of material damage for high-precision lifetime evaluation of steel structure. Material damage depends on
Kosuge Hiroaki, Kawabata Tomoya, Okita Taira, Murayama Hideaki, Takagi Shunsuke   +4 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Microstructural evolution and deformation mechanisms in CoCrNi medium entropy alloy fabricated by additive and subtractive hybrid manufacturing

Virtual and Physical Prototyping
Additive and subtractive hybrid manufacturing offers great potential for the integrated fabrication of high-performance structural components. CoCrNi MEA specimens were subjected to subtractive manufacturing (SM) immediately after additive manufacturing (
Nan Wang, Wei Yue, Shamima Sultana, YongGang Sun, TianXu Zhao, ChangYu Liu, ZeHao Li, Shuang Su, ZhiLiang Ning, Tung Lik Lee, YanMing Zhang, JianFei Sun, Alfonso H.W. Ngan, YongJiang Huang   +13 more
doaj   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Energetic Approach to Large Strain Gradient Crystal Plasticity

Acta Polytechnica, 2012
We formulate a problem of the evolution of elasto-plastic materials subjected to external loads in the framework of large deformations and multiplicative plasticity.
Jan Kratochvíl, Martin Kružík
doaj