Numerical Material Model for Composite Laminates in High-Velocity Impact Simulation

Autor: Tao Liu, Xiao-tian Zhang, Ning-bo He, Guang-hui Jia
Jazyk: angličtina
Předmět:
Zdroj: Latin American Journal of Solids and Structures, Vol 14, Iss 11, Pp 1912-1931
Druh dokumentu: article
ISSN: 1679-7825
DOI: 10.1590/1679-78253750
Popis: Abstract A numerical material model for composite laminate, was developed and integrated into the nonlinear dynamic explicit finite element programs as a material user subroutine. This model coupling nonlinear state of equation (EOS), was a macro-mechanics model, which was used to simulate the major mechanical behaviors of composite laminate under high-velocity impact conditions. The basic theoretical framework of the developed material model was introduced. An inverse flyer plate simulation was conducted, which demonstrated the advantage of the developed model in characterizing the nonlinear shock response. The developed model and its implementation were validated through a classic ballistic impact issue, i.e. projectile impacting on Kevlar29/Phenolic laminate. The failure modes and ballistic limit velocity were analyzed, and a good agreement was achieved when comparing with the analytical and experimental results. The computational capacity of this model, for Kevlar/Epoxy laminates with different architectures, i.e. plain-woven and cross-plied laminates, was further evaluated and the residual velocity curves and damage cone were accurately predicted.
Databáze: Directory of Open Access Journals