Quasi-static modes I, II and mixed modes I/II fracture toughness of two laminate composites: Part II — micro-computerized tomography and numerical simulations

Ofir Shor, Leslie Banks-Sills*, Ido Simon

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In Part I of this paper, quasi-static fracture toughness tests were reported which were carried out on two carbon fiber reinforced polymer materials. One laminate was unidirectional and the second was composed of plies fabricated from a twill fabric. In Part II, which is presented here, micro-computerized tomography was performed providing a relationship between the observed experimental behavior and the micromechanical structure of the materials. This was carried out for the double cantilever beam (DCB), mixed mode bending (MMB) and end-notched flexure (ENF) specimens. Load–displacement curves were simulated numerically by means of a cohesive zone model and the finite element method to obtain better insight into the failure mechanisms observed for DCB and ENF specimens.

Original languageEnglish
Article number108976
JournalEngineering Fracture Mechanics
Volume277
DOIs
StatePublished - Jan 2023

Funding

FundersFunder number
Rafael Advanced Defense Systems LTD

    Keywords

    • Carbon fiber reinforced polymers
    • Cohesive zone modeling
    • Fracture toughness testing
    • Micro-computerized tomography
    • Mixed modes

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