TY - JOUR
T1 - A nonlinear analytical model for tensile failure prediction of pseudo-ductile composite laminates
AU - Xiang, Huabo
AU - Zhang, Yinxiao
AU - Chen, Yang
AU - Pagani, Alfonso
AU - Zhang, Chao
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/10
Y1 - 2022/10
N2 - In this study, the tensile nonlinear responses of composite laminates with ±θns and ±θn/0s layups are investigated. An analytical model that integrates the progressive failure, shear nonlinearity, fiber rotation, and fragmentation is established to characterize the nonlinear tensile behavior. A nonlinear factor is used to describe the shear nonlinearity of the resin matrix, which is governed by shear stress, while progressive damage indexes are determined by normal stresses. The degree of fiber rotation and the fragmentation between layers are analytically formulated. Tensile results from experiments conducted in this study and from others in the literature are used to verify the model's prediction accuracy. The proposed model provides acceptably good predictions of nonlinear behavior for pseudo-ductile carbon fiber reinforced composite laminates. A sensitivity analysis shows that the dominant model parameter changes from axial modulus to shear modulus, and eventually to transverse modulus as the off-axial angle increases from 0° to 90°.
AB - In this study, the tensile nonlinear responses of composite laminates with ±θns and ±θn/0s layups are investigated. An analytical model that integrates the progressive failure, shear nonlinearity, fiber rotation, and fragmentation is established to characterize the nonlinear tensile behavior. A nonlinear factor is used to describe the shear nonlinearity of the resin matrix, which is governed by shear stress, while progressive damage indexes are determined by normal stresses. The degree of fiber rotation and the fragmentation between layers are analytically formulated. Tensile results from experiments conducted in this study and from others in the literature are used to verify the model's prediction accuracy. The proposed model provides acceptably good predictions of nonlinear behavior for pseudo-ductile carbon fiber reinforced composite laminates. A sensitivity analysis shows that the dominant model parameter changes from axial modulus to shear modulus, and eventually to transverse modulus as the off-axial angle increases from 0° to 90°.
KW - Analytical model
KW - Mechanical properties
KW - Nonlinear behaviors
KW - Polymer–matrix composites (PMCs)
KW - Pseudo-ductile composites
UR - http://www.scopus.com/inward/record.url?scp=85134298560&partnerID=8YFLogxK
U2 - 10.1016/j.tws.2022.109711
DO - 10.1016/j.tws.2022.109711
M3 - 文章
AN - SCOPUS:85134298560
SN - 0263-8231
VL - 179
JO - Thin-Walled Structures
JF - Thin-Walled Structures
M1 - 109711
ER -