A Newly Developed Clamping Device for the Tension/Compression Test at Various Strain Rates

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The tension/compression hardening behavior is important in sheet metal forming processes because of complicated loading paths. Experimental methods to measure the tension/ compression behavior have not considered the effect of the strain rate although the strain rate is related to the hardening behavior of sheet metal. The tension/compression tests need to be conducted considering the strain rate to acquire accurate hardening behavior.This paper deals with an experimental technique to measure the tension/compression behavior of sheet metal at various strain rates. A new clamping device was developed to prevent a sheet specimen from buckling under compression loading condition. Compared to previous clamping devices, the clamping device was devised to uniformly impose a clamping force and easily measure the strain from side of a specimen. Tension/compression tests have been conducted at various strain rates for SPCC and DP590 with displacement of 10%. Hardening curves under the tension or compression loading condition were obtained and analyzed with respect to the strain rate.

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Edited by:

Yeong-Maw Hwang and Cho-Pei Jiang

Pages:

353-358

Citation:

G. S. Joo et al., "A Newly Developed Clamping Device for the Tension/Compression Test at Various Strain Rates", Key Engineering Materials, Vol. 626, pp. 353-358, 2015

Online since:

August 2014

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$38.00

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