Strain rate influence on nonlinear response of polymer matrix composites
Source abstract
Abstract
In this article, influence of strain rate on nonlinear response of unidirectional fiber‐reinforced composites is studied. The fibers are assumed to be periodic arrays in composite structures. By studying a representative volume element, a microscopic constitutive model for characterizing macro‐mechanical response of polymer matrix composites is developed. Viscoplastic material parameters of polymer matrix are acquired by axial tension and pure shear experiment, and the proposed method is validated by experimental data. The results showed that mechanical behavior of composites, which is affected by strain rate, can be ignored in the linear stage of loading. Furthermore, with the increase in strain rate, stiffness behavior of composites tends to be stiffer at the stage of nonlinear deformation. POLYM. COMPOS., 36:800–810, 2015. © 2014 Society of Plastics Engineers
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Research context
OpenAlex topics: Mechanical Behavior of Composites · Structural Response to Dynamic Loads · Natural Fiber Reinforced Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Ministry of Education for Electronic Equipment Structure Design Xidian University Xi'an 710071 People's Republic of China
State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Xi'an 710049 People's Republic of China
Funding
National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities
References (23)
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