TY - JOUR
T1 - Elastic-plastic analyses of symmetric angle-ply carbon/epoxy laminates based on the rule of mixtures
AU - Kunoo, Kazuo
AU - Uda, Nobuhide
AU - Liu, Jihong
PY - 1990
Y1 - 1990
N2 - This paper presents elastic-plastic analyses of symmetric angle-ply carbon/epoxy laminated composites subjected to a uniform axial strain through the application of constitutive equations based on the rule of mixtures. It is assumed that the matrix is elastic-perfectly plastic and the fibers are elastic. A finite element method is used to obtain numerical solutions for symmetric 45° angle-ply carbon/epoxy laminates. The stress distributions in the section of laminated composites, especially interlaminar stress distributions near the free edge, and the growth process of plastic regions are investigated. Numerical solutions for initial yield stresses and final failure stresses of laminates with different numbers of stacking layers are compared with experimental data. On the basis of this comparison, we propose a failure mode for laminated composites.
AB - This paper presents elastic-plastic analyses of symmetric angle-ply carbon/epoxy laminated composites subjected to a uniform axial strain through the application of constitutive equations based on the rule of mixtures. It is assumed that the matrix is elastic-perfectly plastic and the fibers are elastic. A finite element method is used to obtain numerical solutions for symmetric 45° angle-ply carbon/epoxy laminates. The stress distributions in the section of laminated composites, especially interlaminar stress distributions near the free edge, and the growth process of plastic regions are investigated. Numerical solutions for initial yield stresses and final failure stresses of laminates with different numbers of stacking layers are compared with experimental data. On the basis of this comparison, we propose a failure mode for laminated composites.
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M3 - Conference article
AN - SCOPUS:0025541586
VL - 39
SP - 93
EP - 102
JO - Theoretical and Applied Mechanics
JF - Theoretical and Applied Mechanics
SN - 0285-6042
T2 - Proceedings of the 39th Japan National Congress for Applied Mechanics 1989 - NCTAM-39
Y2 - 13 December 1989 through 15 December 1989
ER -