Thermo-mechanical stress-strain behavior of carbon fiber composites using FEM under extreme temperatures
Matza Gusto Andika,Ilham Akbar Adi Satriya,Taufiq Satrio Nurtiasto,Rian Suari Aritonang,Awang Rahmadi Nuranto,Kosim Abdurohman,Afid Nugroho
Abstract
The stress-strain behavior of carbon fiber reinforced polymer matrix composites (CFRPs) is highly influenced by thermal expansion mismatches, particularly due to their anisotropic nature and directional mechanical properties. While prior research has explored thermal and mechanical loading separately, a critical gap remains in understanding their combined effects concerning fiber orientation and load application. This study integrates finite element modeling (FEM) with optimized coefficient of thermal expansion (CTE) selection to improve stress-strain prediction accuracy under coupled thermal-mechanical loading for various fiber orientation. Experimental tensile tests at -53°C, 82°C, and room temperature reveal that improper CTE selection significantly impacts transverse loading, causing premature matrix cracking and interfacial debonding. The proposed FEM framework captures thermally induced residual stresses, improving predictive accuracy and reinforcing the need for thermo-mechanical coupling in aerospace applications to ensure long-term material reliability.
Key Words
carbon fiber reinforced polymer; finite element analysis; meshes and discretization; modeling and simulation; stress-strain under extreme temperatures
Address
Matza Gusto Andika, Ilham Akbar Adi Satriya, Taufiq Satrio Nurtiasto, Rian Suari Aritonang, Awang Rahmadi Nuranto, Kosim Abdurohman, Afid Nugroho: Research Center for Aeronautics Technology, National Research and Innovation Agency - BRIN, Indonesia
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