Results 81 to 90 of about 47,158 (302)

Serrated Flow and Shear Band Evolution in A Zr-Based Bulk Metallic Glass After Plastic Deformation and Annealing

, 2010
The effect of pre-deformation and annealing on serrated plastic flow and shear band features of a Zr-based bulk metallic glass was investigated through nanoindentation and macroindentation tests.
冯义辉, 谷建生, 魏炳忱, 孙祉伟, 张泰华, Wei, BC (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, Beijing 100190, Peoples R China.   +5 more
core   +1 more source

Critical packing in granular shear bands [PDF]

Physical Review E, 2007
In a realistic three-dimensional setup, we simulate the slow deformation of idealized granular media composed of spheres undergoing an axisymmetric triaxial shear test. We follow the self-organization of the spontaneous strain localization process leading to a shear band and demonstrate the existence of a critical packing density inside this failure ...
Fazekas, S., Török, J., Kertész, J.
openaire   +3 more sources

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +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

Shear Banding in Time-Dependent Flows of Complex Fluids [PDF]

, 2013
We explore theoretically the time-dependent rheological response of complex fluids to step stress, shear startup and strain ramp deformations. We study soft glassy materials and entangled polymeric materials above and below the glass transition using the
COOKE, ROBYN,LUCY
core  

Experimental and numerical simulation for shear failure mechanism of silty clay–structure interface

Soils and Foundations
The shear phenomenon between soil and foundation structure is common in foundation engineering. The change in the water content of stratum affects the shear behavior of soil and structure inevitably, especially in the region of cohesive soil with complex
Boxin Wang, Zihao Wang, Wen Zhang, Jingjing Pan, Jiaqi Liu, Qing Wang   +5 more
doaj   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Prediction of the initial thickness of shear band localization based on a reduced strain gradient theory

, 2011
Plastic flow localization in ductile materials subjected to pure shear loading and uniaxial tension is investigated respectively in this paper using a reduced strain gradient theory, which consists of the couple-stress (CS) strain gradient theory ...
冯彪, Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China, 陈少华, 王自强, 魏悦广   +4 more
core   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

The shear mode of multi-layer graphene [PDF]

, 2012
The quest for materials capable of realizing the next generation of electronic and photonic devices continues to fuel research on the electronic, optical and vibrational properties of graphene.
Han, W.P., Tan, P.H, Wang, Y. F., A. C. Ferrari, Marzari, Nicola, Wang, YF, Ferrari, A.C, Bonini, Nicola, Tan, P. H., Wu, Z. H., N. Bonini, W. P. Han, Zhao, W.J, Y. F. Wang, Han, WP, Zhao, WJ, ,, Wu, Z.H., H. Wang, A. Lombardo, Chang, K, Savini, G, Han, W. P., Pugno, Nicola, Pugno, Nicola M., Z. H. Wu, Ferrari, Andrea C., Bonini, N, Tan, P.H., Wang, H., K. Chang, N. Marzari, Pugno, N, Ferrari, AC, Zhao, W.J., Savini, G., Wang, H, Lombardo, A, Ferrari, A. C., Tan, PH, Wu, ZH, P. H. Tan, Wu, Z.H, Zhao, W. J., Pugno, N., Bonini, N., W. J. Zhao, Han, W.P, Wang, Y.F., Chang, W., Marzari, N., Chang, K., Wang, Y.F, G. Savini, Lombardo, A., Marzari, N   +55 more
core   +1 more source