Results 31 to 40 of about 776 (192)

ADIABATIC SHEAR BAND VELOCITIES

Le Journal de Physique Colloques, 1985
A new method of investigating adiabatic shear band velocities under hydrodynamic pressure is described. Interpretation of propagation rates depends on an appreciation of the stress and strain fields into which propagation occurs. The C-HEMP computer code has been used to characterize load histories, and results are described for comparison with the ...
Moss, G., Pritchard, D.
openaire   +1 more source

Changes in Mechanical Properties of Ultrahigh Strength Nanostructured Steel Resulting from Repeated High Strain Rate Deformation [PDF]

Problemy Mechatroniki, 2019
The paper contains results of investigation of nanostructured bainitic steel subjected to repeated high-strain-rate deformations using split Hopkinson pressure bar method and uniaxial compression of cylindrical specimens in Gleeble simulator.
Jarosław MARCISZ, Bogdan GARBARZ, Jacek JANISZEWSKI   +2 more
doaj   +1 more source

Effect of High Strain Rates on Adiabatic Shear Bands Evolution and Mechanical Performance of Dual-Phase Ti Alloy

Frontiers in Materials, 2022
In the present work, the adiabatic shear characteristics of our recently designed α + β dual-phase Ti alloy at different strain rates have been investigated by hat shaped specimen.
Fang Hao, Fang Hao, Yuxuan Du, William Yi Wang, William Yi Wang, Youchuan Mao, Youchuan Mao, Junlei Yin, Chengxiong Zou, Chengxiong Zou, Haisheng Chen, Kaixuan Wang, Yong Feng, Yong Feng, Xianghong Liu, Jinshan Li, Jinshan Li   +16 more
doaj   +1 more source

Dynamic mechanical performance of FeNiCoAl-based high-entropy alloy: Enhancement via microbands and martensitic transformation

Materials Today Advances, 2023
The non-equiatomic FeNiCoAlTaB high-entropy alloy exhibits outstanding quasi-static mechanical properties. Here, we investigate the microstructural evolution and mechanical response of this alloy subjected to dynamic loading, which has not been done ...
Aomin Huang, Cheng Zhang, Zezhou Li, Haoren Wang, Mingjie Xu, Chaoyi Zhu, Xin Wang, Marc A. Meyers, Enrique J. Lavernia   +8 more
doaj   +1 more source

Evolution of adiabatic shear band in 2000 MPa grade ultrahigh strength steel during high strain rate compression

Journal of Materials Research and Technology
In this work, we employ a Split Hopkinson Pressure Bar (SHPB) to investigate the microstructural evolution and formation mechanism of internal adiabatic shear bands (ASBs) in a 2000 MPa grade ultrahigh strength martensitic steel at high strain rates ...
Ruizhe Jin, Jiahao Zhu, Wenchao Yu, Yongming Yan, Jie Shi, Maoqiu Wang   +5 more
doaj   +1 more source

Experimental and crystal plasticity finite element study of dynamic shear behavior of CoCrNiSi0.3 medium-entropy alloy

Journal of Materials Research and Technology
Single-phase CrCoNi-based medium-entropy alloys (MEAs) have garnered considerable attention as a promising class of metallic materials. However, despite this growing interest, the dynamic mechanical response of CrCoNi-based MEAs at high strain rate ...
Huiqing Fang, Dan Zhao, Wenjun Wu, Guang Hu, Tao Jin, Ji Qiu, Jianjun Wang, Shengguo Ma, Tuanwei Zhang, Zhihua Wang   +9 more
doaj   +1 more source

Experimental and numerical analyses of the dynamic failure processes of symmetric Taylor impact specimens

EPJ Web of Conferences, 2018
Failure processes encountered in the Taylor impact specimen are of two kinds, Mode II cracks initiating within adiabatic shear bands and tensile cracks. Because friction occurring with the single Taylor configuration influences the failure processes, it ...
Couque Hervé
doaj   +1 more source

A Review on the Adiabatic Shear Banding Mechanism in Metals and Alloys Considering Microstructural Characteristics, Morphology and Fracture

Metals, 2023
The current review work studies the adiabatic shear banding (ASB) mechanism in metals and alloys, focusing on its microstructural characteristics, dominant evolution mechanisms and final fracture.
Konstantina D. Karantza, Dimitrios E. Manolakos   +1 more
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

Advanced Science, EarlyView.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang, Steve Gaudez, Mario Togni, Steven Van Petegem, Markus Bambach, Mamzi Afrasiabi   +5 more
wiley   +1 more source