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A continuum damage model for transverse cracking in UD composites of linear viscoelastic behaviour

Xu, Fei; Jones, I. Arthur; Li, Shuguang

Authors

Fei Xu

I. Arthur Jones

SHUGUANG LI shuguang.li@nottingham.ac.uk
Professor of Aerospace Composites



Abstract

A damage model for linear viscoelastic unidirectional (UD) composites undergoing transverse matrix cracking is proposed. The damage representation for the corresponding elastic UD composite with an array of dispersed matrix cracks was derived from Li's work based on continuum damage mechanics (CDM). The elastic-viscoelastic correspondence principle (CP) was used to obtain the damage representation for corresponding linear viscoelastic UD composites in the Laplace domain, and re-expressed the time domain by taking the inverse Laplace transformation. A damage evolution law was constructed using the Weibull distribution of defects which will develop into cracks as a result of deformation. The time-temperature superposition principle (TTSP) approach has been incorporated into this model. Applications of this damage model are described in detail, and the predictions are compared with experimental data.

Citation

Xu, F., Jones, I. A., & Li, S. (2019). A continuum damage model for transverse cracking in UD composites of linear viscoelastic behaviour. Composite Structures, 225, https://doi.org/10.1016/j.compstruct.2019.03.084

Journal Article Type Article
Acceptance Date Mar 25, 2019
Online Publication Date Mar 29, 2019
Publication Date Oct 1, 2019
Deposit Date Mar 26, 2019
Publicly Available Date Mar 30, 2020
Journal Composite Structures
Print ISSN 0263-8223
Electronic ISSN 1879-1085
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 225
Article Number 110812
DOI https://doi.org/10.1016/j.compstruct.2019.03.084
Keywords Damage, Linear viscoelasticity, Correspondence principle, Transverse matrix; cracks, Weibull distribution, Time-temperature superposition principle (TTSP)
Public URL https://nottingham-repository.worktribe.com/output/1685858
Publisher URL https://www.sciencedirect.com/science/article/pii/S026382231832511X

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