ORCID
- Meng, Maozhou: 0000-0001-6138-9433
- Rizvi, Jahir: 0000-0001-9773-7129
Abstract
Abstract This paper investigates the effects of unequal compressive and tensile moduli of carbon fibre reinforced plastic (CFRP) composites. The basic assumption is based on the statistics that the compressive modulus is a fraction lower than the tensile modulus. Data evaluated by Finite Element Analysis (FEA) model, Classical Laminate Theory (CLT) model, and experiment are used to investigate these effects. The terms of compressive modulus are successfully introduced into the Tsai–Wu failure criterion for the production of failure envelops, into the Classical Beam Theory (CBT) and CLT for the investigation of flexural behaviour as well as the fibre microbuckling model for the analysis of compressive failure. The study shows that the failure criteria shift from stress domain to strain domain when the compressive modulus is considered, and the strain dominated failure criteria could generally provide more accurate prediction in composite material. Therefore it is proposed to apply strain dominated failure criteria for composite design, testing and certificate.
DOI
10.1016/j.compstruct.2015.02.064
Publication Date
2015-08-01
Publication Title
Composite Structures
Volume
126
First Page
207
Last Page
215
ISSN
0263-8223
Organisational Unit
School of Engineering, Computing and Mathematics
Keywords
Compressive modulus, Failure criterion, Classical Laminate Theory (CLT), Finite Element Analysis (FEA), Microbuckling
Recommended Citation
Meng, M., Le, H., Rizvi, M., & Grove, S. (2015) 'The effects of unequal compressive/tensile moduli of composites', Composite Structures, 126, pp. 207-215. Available at: https://doi.org/10.1016/j.compstruct.2015.02.064
