Mathematical description of mechanical behavior of woven fabric reinforced PPS‐based composites at high temperature
Source abstract
Abstract
Carbon fiber fabric reinforced PPS (C/PPS) composites exhibit significant nonlinearity before failure, particularly with respect to shear deformations. Loading‐unloading Iosipescu shear tests for the composites at different high temperatures are conducted. It is found that there exist significant plasticity deformations and stiffness degradation. A one‐parameter damage‐plasticity model is proposed to describe mathematically the nonlinear mechanical behavior of the C/PPS composites at high temperatures. The relationship between effective stress and effective plastic strain in a power form, the evolution of damage in an exponential form and the shear modulus are all associated with temperature. It is verified that the proposed model can well characterize the shear and off‐axis compressive nonlinear behavior of the composites at different temperatures. POLYM. COMPOS., 40:1097–1103, 2019. © 2018 Society of Plastics Engineers
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Research context
OpenAlex topics: Mechanical Behavior of Composites · Fiber-reinforced polymer composites · Natural Fiber Reinforced Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Science and Technology on Advanced Composites in Special Environments Key Laboratory Harbin Institute of Technology Harbin 150001 People's Republic of China
Funding
National Natural Science Foundation of China
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