Dynamic deformations of 921A steel pure shear hat-shaped specimen in SHPB tests

LI Ji-Cheng; CHEN Xiao-Wei; CHEN Gang

doi:10.11883/1001-1455(2010)03-0239-08

Volume 30 Issue 3

Nov. 2010

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Article Navigation > Explosion And Shock Waves > 2010 > 30(3): 239-246

HU Jin-sheng, YANG Xiu-min, ZHOU Zao-sheng, ENG Guo-qiang, TANG De-gao. Experimental investigation on contact explosion damage effect to fiber reinforced concrete slab with soil bedding[J]. Explosion And Shock Waves, 2005, 25(2): 157-162. doi: 10.11883/1001-1455(2005)02-0157-06

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LI Ji-Cheng, CHEN Xiao-Wei, CHEN Gang. Dynamic deformations of 921A steel pure shear hat-shaped specimen in SHPB tests[J]. Explosion And Shock Waves, 2010, 30(3): 239-246. doi: 10.11883/1001-1455(2010)03-0239-08

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Dynamic deformations of 921A steel pure shear hat-shaped specimen in SHPB tests

doi: 10.11883/1001-1455(2010)03-0239-08

1.
Institute of Structural Mechanics,China Academy of Engineering Physics,Mianyang 621900,Sichuan,China

Publish Date: 2010-05-25

Abstract

Abstract

A series of numerical simulations of SHPB test using 921A steel pure shear hat-shaped specimens are conducted with ANSYS/LS-DYNA and validated by the SHPB tests in the present paper. Integrated with the theory of stress wave in a SHPB system,the wave propagation in the bars and the dynamic deformations of the specimen under different loading rate (or stress pulse ) are analyzed,and typical wave shapes are identified for different loading rates. Numerical test of SHPB under ultrahigh strain rate are specially conducted,which is unable to be done realistically. The different deformation and failure of the hat-shaped specimens under different loading rate are distinguished,and the applicability of strain waves in the bars under ultrahigh loading rate is also discussed.
- mechanics of explosion,
- dynamic deformation,
- SHPB,
- 921A steel,
- pure shear hat-shaped specimen

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