September 10, 2025MaterialsOpen Access

Multi-Scale Transient Thermo-Mechanical Coupling Analysis Method for the SiCf/SiC Composite Guide Vane

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The multi-scale thermo-mechanical model predicts thermal stress in SiC composites, suggesting accurate stress distribution analysis for guide vanes.

The method predicts thermal stress distribution accurately under transient high-temperature loads, improving material design.
Relative errors are minimal, with a maximum of 9.7% between predicted and measured values in composite materials.
The approach utilizes an asymptotic expansion homogenization method to couple thermal and mechanical properties across scales.
Micro-scale analysis reveals significant stress concentrations at the fiber-matrix interface critical for composite integrity.

Li et al. (2025) studied this question.

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The multi-scale thermo-mechanical model predicts thermal stress in SiC composites, suggesting accurate stress distribution analysis for guide vanes.