Experimental Methods & EquipmentNo Access

CORRECTION OF LATERAL INERTIA EFFECT IN SHPB

CHEN GANG

Institute of structural Mechanics, China Academy of Engineering Physics, Sichuan, PRC, 621900, P. R. China

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JUNLIN TAO

Southwest University of Science and Technology, Sichuan, PRC, 621000, P. R. China

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ZHONGFU CHEN

Institute of structural Mechanics, China Academy of Engineering Physics, Sichuan, PRC, 621900, P. R. China

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XICHENG HUANG

Institute of structural Mechanics, China Academy of Engineering Physics, Sichuan, PRC, 621900, P. R. China

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, and

WEIFANG XU

Institute of structural Mechanics, China Academy of Engineering Physics, Sichuan, PRC, 621900, P. R. China

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https://doi.org/10.1142/S0217979208046293Cited by:1 (Source: Crossref)

Abstract

A theoretical analysis of the stress state in specimen of the SHPB experiment was performed in consideration of lateral inertia effect. The nonuniformity of lateral stress in specimen and variety of deforming velocity in the loading process were taken into account in the analysis. A formula to correcting the lateral inertia effect was obtained. The force and deformation velocity of specimen-bar interfaces during the loading process got from a numerical simulation of SHPB were used to verify the theoretical analysis formula. It shows that the deviation of reconstructed curve from the inputted relationship can be brought down with the correction formula.

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