Parameters calibration and validation of carbon fiber reinforced composite based on *MAT_58 model

doi:10.19936/j.cnki.2096-8000.20250328.008

Abstract

Abstract: It is of vital importance to predict the failure behavior of fiber reinforced composite laminates in engineering applications. In this paper, the parameters of material model *MAT_58 in LS-DYNA of a type of carbon fiber reinforced composite laminate were calibrated and validated, by using a universal electronic test machine and a drop-weight impact test machine. The results show that: the physical meaning of *MAT_58 parameters are specified by single element test; the effective failure strain is equals to 0.56 for 2 mm rectangular element by the double edge notched tension experiments combined with the Bazant crack band model; the peak force of the drop-weight impact experiment is highly sensitive to ERODS, the force-displacement curve of the experimental and simulation curves is in good agreement, with a minimum peak force error of 5.22%, which proves the effectiveness of ERODS; the fiber direction strength has the strongest effect on the mechanical response behavior during drop-weight impact, followed by in-plane shear strength and the matrix direction strength.

Key words: carbon fiber reinforced composite, finite element simulation, single element test, in-plane fracture toughness, impact response

CLC Number:

TB332

QIU Xinghan, SONG Tong, ZHANG Sai, WANG Fusheng, MENG Xianming, CHEN Yajun. Parameters calibration and validation of carbon fiber reinforced composite based on *MAT_58 model[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(3): 54-62.

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