Results 171 to 180 of about 11,348 (228)

Misalignment effect in the split Hopkinson pressure bar technique

International Journal of Impact Engineering, 2012
Abstract It is well known that alignment of the bar in a split Hopkinson pressure bar (SHPB) experiment plays a significant role in producing a good clean signal. In this paper, numerical simulations using ANSYS-LSDYNA are employed to comprehensively study the effects of bar misalignment in producing a distorted signal.
Kariem, Muhammad A., Beynon, John H., Ruan, Dong   +2 more
openaire   +2 more sources

Dynamic Characteristics of Coal under Triaxial Constraints Based on the Split–Hopkinson Pressure Bar Test System

Natural Resources Research, 2023
Zhoujie Gu, Rongxi Shen, Zhentang Liu, E. Zhao, Hai-Hang Chen, Zichen Yuan, Xiaomeng Chu, Jiawei Tian   +7 more
semanticscholar   +1 more source

Split Hopkinson pressure bar experiment simulation using MUNROU

2013
The next generation of 3D combined finite-discrete element method (FDEM) capabilities has been developed at Los Alamos National Laboratory (LANL). These include state of the art contact detection, contact interaction, LANL’s constitutive material, and fracture models all combined in a grand scale parallel computing framework called MUNROU.
Knight, EE, Rougier, E, Sussman, AJ, Broome, ST, Munjiza, A   +4 more
openaire   +2 more sources

Tracking Deformation History in Split Hopkinson Pressure Bar Testing

Materials Today: Proceedings, 2016
The stress vs. strain curve of materials is affected the rate of imposed straining. Among the methods for dynamic testing the technique known as ‘split Hopkinson pressure bar’ (SHPB) has evolved into the most widely used one to exert high-speed straining. The theory behind it comprises simple equations to compute stress and strain.
Frank Richter, Enrico Köppe, Werner Daum   +2 more
openaire   +1 more source

Material characterisation using high-temperature Split Hopkinson pressure bar

Journal of Materials Processing Technology, 2013
In order to characterise the mechanical response of materials in manufacturing processes, such as wire and bar rolling involving very high strain rates, temperatures and level of straining, an expe ...
Jörgen Kajberg, K.-G. Sundin
openaire   +1 more source

Physical and numerical evaluation of rock strength in Split Hopkinson Pressure Bar testing

Computers and geotechnics, 2018
Split Hopkinson Pressure Bar (SHPB) testing was used to evaluate the strength characteristics of sandstone under uniaxial compressive loading. The physical results suggest that rock strength increases under dynamic loading.
A. Fakhimi, P. Azhdari, J. Kimberley
semanticscholar   +1 more source

A modified triaxial split Hopkinson pressure bar (SHPB) system for quantifying the dynamic compressive response of porous rocks subjected to coupled hydraulic-mechanical loading

Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2022
Ge-jun Zhao, Xing Li, Ying Xu, K. Xia
semanticscholar   +1 more source

Effect of loading characteristics and specimen size in split Hopkinson pressure bar test on high-rate behavior of phyllite

Archives of Civil and Mechanical Engineering, 2022
Sunita Mishra, A. Khetwal, T. Chakraborty, D. Basu   +3 more
semanticscholar   +1 more source

Wave Dispersion and Attenuation in Viscoelastic Split Hopkinson Pressure Bar

Key Engineering Materials, 2013
The Split Hopkinson Pressure Bar (SHPB) is most commonly used facility to obtain material properties at high strain rates. Testing of soft materials using this method requires that bars made of low impedance material should be used, in order to improve signal-to-noise ratio of transmitted stress.
Hafiz Sana Ullah Butt, Pu Xue
openaire   +1 more source

Split Hopkinson Pressure Bar Test Results

2022
Derek G. Spear, Anthony N. Palazotto
openaire   +1 more source