Numerical Implementation of Constitutive Material Law for Simulating the Kinkband Formation in Fiber Composites

Abstract:

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Finite element models with a constitutive material behavior that represents the non-linear response of fiber composites are used to simulate the compressive failure mechanism i.e. kinkband formation. A constitutive material law in framework of micromechanical modeling containing comprehensive constitutive equations for the constituent materials is adopted to model the non-linear behavior of the unidirectional layered materials. This material law is implemented as UMAT user subroutine in ABAQUS/Standard to study kinkband formation. The methodology provides a procedure to investigate the kinkband formation due to fiber misalignment for various complex structures having voids and material discontinuities that occur normally during the manufacture of these unidirectional fiber composites.

Info:

Periodical:

Key Engineering Materials (Volumes 488-489)

Edited by:

Z. Tonković and M.H. Aliabadi

Pages:

472-475

DOI:

10.4028/www.scientific.net/KEM.488-489.472

Citation:

B. Veluri and H. M. Jensen, "Numerical Implementation of Constitutive Material Law for Simulating the Kinkband Formation in Fiber Composites", Key Engineering Materials, Vols. 488-489, pp. 472-475, 2012

Online since:

September 2011

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Price:

$35.00

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