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Polymers
Volume 13
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10.3390/polym13071057
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Article

Critical Load Prediction in Notched E/Glass–Epoxy-Laminated Composites Using the Virtual Isotropic Material Concept Combined with the Average Strain Energy Density Criterion

by
Marcos Sánchez
1,
Sergio Cicero
1,*,
Ali Reza Torabi
2,* and
Majid Reza Ayatollahi
3
1
LADICIM (Laboratory of Materials Science and Engineering), University of Cantabria, E.T.S. de Ingenieros de Caminos, Canales y Puertos, Av/Los Castros 44, 39005 Santander, Spain
2
Fracture Research Laboratory, Faculty of New Science and Technologies, University of Tehran, Tehran 14395-1561, Iran
3
Fatigue and Fracture Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran 16846, Iran
*
Authors to whom correspondence should be addressed.
Polymers 2021, 13(7), 1057; https://doi.org/10.3390/polym13071057
Submission received: 16 March 2021 / Accepted: 24 March 2021 / Published: 27 March 2021
(This article belongs to the Special Issue Mechanics of Polymer and Polymer Composite Materials and Structures)
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Abstract

This paper attempts to validate the application of the Virtual Isotropic Material Concept (VIMC) in combination with the average strain energy density (ASED) criterion to predict the critical load in notched laminated composites. This methodology was applied to E/glass–epoxy-laminated composites containing U-notches. For this purpose, a series of fracture test data recently published in the literature on specimens with different notch tip radii, lay-up configurations, and a number of plies were employed. It was shown that the VIMC–ASED combined approach provided satisfactory predictions of the last-ply failure (LPF) loads (i.e., critical loads).
Keywords: fracture; Virtual Isotropic Material Concept (VIMC); Average Strain Energy Density criterion (ASED); notch; laminated composite fracture; Virtual Isotropic Material Concept (VIMC); Average Strain Energy Density criterion (ASED); notch; laminated composite

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MDPI and ACS Style

Sánchez, M.; Cicero, S.; Torabi, A.R.; Ayatollahi, M.R. Critical Load Prediction in Notched E/Glass–Epoxy-Laminated Composites Using the Virtual Isotropic Material Concept Combined with the Average Strain Energy Density Criterion. Polymers 2021, 13, 1057. https://doi.org/10.3390/polym13071057

AMA Style

Sánchez M, Cicero S, Torabi AR, Ayatollahi MR. Critical Load Prediction in Notched E/Glass–Epoxy-Laminated Composites Using the Virtual Isotropic Material Concept Combined with the Average Strain Energy Density Criterion. Polymers. 2021; 13(7):1057. https://doi.org/10.3390/polym13071057

Chicago/Turabian Style

Sánchez, Marcos, Sergio Cicero, Ali Reza Torabi, and Majid Reza Ayatollahi. 2021. "Critical Load Prediction in Notched E/Glass–Epoxy-Laminated Composites Using the Virtual Isotropic Material Concept Combined with the Average Strain Energy Density Criterion" Polymers 13, no. 7: 1057. https://doi.org/10.3390/polym13071057

APA Style

Sánchez, M., Cicero, S., Torabi, A. R., & Ayatollahi, M. R. (2021). Critical Load Prediction in Notched E/Glass–Epoxy-Laminated Composites Using the Virtual Isotropic Material Concept Combined with the Average Strain Energy Density Criterion. Polymers, 13(7), 1057. https://doi.org/10.3390/polym13071057

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