Theoretical model of off-axis strength of CFRP composites considering the stress concentration features

Liangbao Liu, Yang Zhao, Yana Wang, Jiangzhen Guo, Research Institute of Aero-Engine, Beihang University, School of Mechanical Engineering and Automation, Beihang University, REF Airframe Engineering, Engineering Center Company Limited, Division of Ceramic Matrix Composites, AECC Beijing Institute of Aeronautical Materials, National Key Laboratory of Advanced Composites, AECC Beijing Institute of Aeronautical Materials, School of Engineering Medicine, Beihang University, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University

Journal of Composite Materials

Published online on October 16, 2025

Abstract

Journal of Composite Materials, Volume 60, Issue 17, Page 1561-1573, July 2026.
This study presents the development of an enhanced micromechanical failure model for predicting the strength of unidirectional (UD) carbon fiber reinforced polymer (CFRP) composites under off-axis loading. Existing micromechanical models often ...