Mode I and mode II delamination of carbon/glass/epoxy hybrid composite: A statistics-based analysis

Author(s)

Monticeli, Francisco Maciel ^[1] ; Pitanga, Midori Yoshikawa ^[1] ; Cioffi, Maria Odila Hilario ^[1] ; Voorwald, Herman Jacobus Cornelis ^[1]

Affiliation

^[1] Sao Paulo State Univ Unesp, Dept Mat & Technol, Sch Engn, BR-12516410 Guaratingueta, SP - Brazil

• Document type: Journal article
• Source: Polymer Composites; v. 42, n. 8, p. 3857-3869, AUG 2021.
• Web of Science Citations: 0

Abstract

The delamination of a carbon/glass/epoxy hybrid composite was studied experimentally to analyze the effect of reinforcement heterogeneity on data dispersion. A statistical approach was applied to evaluate the effect of the carbon/glass/epoxy hybrid composite on the individual modes (I and II) of delamination. The analysis of variance evidenced the contribution of reinforcement type in strain energy release ratio (SERR). Curve fitting for the quasi-static test was performed with the Weibull distribution model to predict the energy release versus crack length with different reliability levels. The 60% reliability curve presented the best fit with the average of the experimental data. For all reliability levels, the hybrid composite showed an increase in SERR. (AU)

• FAPESP's process: 17/10606-4 - Fatigue in hybrid composites processed via RTM: hybrid interface influence in delamination modes I and II
• Grantee: Francisco Maciel Monticeli
• Support Opportunities: Scholarships in Brazil - Doctorate