A constitutive model for elastoplastic-damage coupling effect of unidirectional fiber-reinforced polymer matrix composites

Yanfei Chen; Yunong Zhao; Shigang Ai; Chunwang He; Yong Tao; Yazheng Yang; Daining Fang

doi:10.1016/j.compositesa.2019.105736

A constitutive model for elastoplastic-damage coupling effect of unidirectional fiber-reinforced polymer matrix composites

Yanfei Chen
, Yunong Zhao
, Shigang Ai^*
, Chunwang He
, Yong Tao
, Yazheng Yang
, Daining Fang

^*Corresponding author for this work

Institute of Advanced Structure Technology

Beijing Institute of Technology
Peking University
School of Civil Engineering

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

In this paper, an elastoplastic-damage coupling constitutive model for unidirectional fiber-reinforced polymer matrix composites (UD FRPs) is presented, which both considers the plastic-hardening and damage-softening processes. Tension-compression asymmetry and shear strength increase due to transverse compression are observed under off-axis tensile/compressive tests of UD E-glass/YPH-200. Therefore, a four-parameter plastic yield criterion considering these two effects is proposed. Applying this model to predict the off-axis tensile/compressive responses of present tests provides good agreement with experimental curves. In addition, we give a novel definition of shear damage variable based on Puck failure theory and discuss it in detail. Further, we develop a four-parameter matrix failure criterion for UD FRPs and exactly predict the off-axis failure strength.

Original language	English
Article number	105736
Journal	Composites Part A: Applied Science and Manufacturing
Volume	130
DOIs	https://doi.org/10.1016/j.compositesa.2019.105736
Publication status	Published - Mar 2020

Keywords

Constitutive model
Elastoplastic-damage coupling
Fiber-reinforced polymer matrix composites

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10.1016/j.compositesa.2019.105736

Cite this

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title = "A constitutive model for elastoplastic-damage coupling effect of unidirectional fiber-reinforced polymer matrix composites",

abstract = "In this paper, an elastoplastic-damage coupling constitutive model for unidirectional fiber-reinforced polymer matrix composites (UD FRPs) is presented, which both considers the plastic-hardening and damage-softening processes. Tension-compression asymmetry and shear strength increase due to transverse compression are observed under off-axis tensile/compressive tests of UD E-glass/YPH-200. Therefore, a four-parameter plastic yield criterion considering these two effects is proposed. Applying this model to predict the off-axis tensile/compressive responses of present tests provides good agreement with experimental curves. In addition, we give a novel definition of shear damage variable based on Puck failure theory and discuss it in detail. Further, we develop a four-parameter matrix failure criterion for UD FRPs and exactly predict the off-axis failure strength.",

keywords = "Constitutive model, Elastoplastic-damage coupling, Fiber-reinforced polymer matrix composites",

author = "Yanfei Chen and Yunong Zhao and Shigang Ai and Chunwang He and Yong Tao and Yazheng Yang and Daining Fang",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2020",

month = mar,

doi = "10.1016/j.compositesa.2019.105736",

language = "English",

volume = "130",

journal = "Composites Part A: Applied Science and Manufacturing",

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T1 - A constitutive model for elastoplastic-damage coupling effect of unidirectional fiber-reinforced polymer matrix composites

AU - Chen, Yanfei

AU - Zhao, Yunong

AU - Ai, Shigang

AU - He, Chunwang

AU - Tao, Yong

AU - Yang, Yazheng

AU - Fang, Daining

PY - 2020/3

Y1 - 2020/3

N2 - In this paper, an elastoplastic-damage coupling constitutive model for unidirectional fiber-reinforced polymer matrix composites (UD FRPs) is presented, which both considers the plastic-hardening and damage-softening processes. Tension-compression asymmetry and shear strength increase due to transverse compression are observed under off-axis tensile/compressive tests of UD E-glass/YPH-200. Therefore, a four-parameter plastic yield criterion considering these two effects is proposed. Applying this model to predict the off-axis tensile/compressive responses of present tests provides good agreement with experimental curves. In addition, we give a novel definition of shear damage variable based on Puck failure theory and discuss it in detail. Further, we develop a four-parameter matrix failure criterion for UD FRPs and exactly predict the off-axis failure strength.

AB - In this paper, an elastoplastic-damage coupling constitutive model for unidirectional fiber-reinforced polymer matrix composites (UD FRPs) is presented, which both considers the plastic-hardening and damage-softening processes. Tension-compression asymmetry and shear strength increase due to transverse compression are observed under off-axis tensile/compressive tests of UD E-glass/YPH-200. Therefore, a four-parameter plastic yield criterion considering these two effects is proposed. Applying this model to predict the off-axis tensile/compressive responses of present tests provides good agreement with experimental curves. In addition, we give a novel definition of shear damage variable based on Puck failure theory and discuss it in detail. Further, we develop a four-parameter matrix failure criterion for UD FRPs and exactly predict the off-axis failure strength.

KW - Constitutive model

KW - Elastoplastic-damage coupling

KW - Fiber-reinforced polymer matrix composites

UR - https://www.scopus.com/pages/publications/85077491578

U2 - 10.1016/j.compositesa.2019.105736

DO - 10.1016/j.compositesa.2019.105736

M3 - Article

AN - SCOPUS:85077491578

SN - 1359-835X

VL - 130

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

M1 - 105736

ER -

A constitutive model for elastoplastic-damage coupling effect of unidirectional fiber-reinforced polymer matrix composites

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Keywords

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