Structural Impact DynamicsNo Access

NUMERICAL SIMULATION OF VISCOELASTIC EFFECTS ON THE ROD DEFORMATION OF TAYLOR IMPACT TEST

SEE JO KIM

School of Mechanical Eng., Andong National Univ., Songchun 388, Andong, Kyungbuk, 760-749, South Korea

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KYUNG HUN LIM

School of Mechanical Eng., Andong National Univ., Songchun 388, Andong, Kyungbuk, 760-749, South Korea

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HYUNG-SEOP SHIN

School of Mechanical Eng., Andong National Univ., Songchun 388, Andong, Kyungbuk, 760-749, South Korea

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JEONG-TAE KIM

Agency for Defense Development, Jochiwongil 462, Yuseong, Daejeon, 305-600, South Korea

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, and

JOON HONG CHOI

Agency for Defense Development, Jochiwongil 462, Yuseong, Daejeon, 305-600, South Korea

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https://doi.org/10.1142/S0217979208046839Cited by:0 (Source: Crossref)

Abstract

In this study we analyzed the deformation of the polymeric rod impacting on the rigid wall which is called "Taylor impact test."" We simulated three-dimensional Taylor impact test depending on the various polymeric materials using the explicit finite element method by employing DYNA3D code. In simulation, polymeric materials were modeled using viscoelastic constitutive relations with the relaxation time and shear modulus. We have carried out the numerical simulation for the transient deformation characteristics and discussed effects of the viscoelastic constants on the deformation of the polymeric rod under impact.

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