Efficient hybrid tensile B-basis value estimation for SiC/SiC composites using sparse testing and high-fidelity digital twin models

Determining the B-basis value for SiC/SiC composites traditionally requires extensive tensile testing, which is both costly and time-consuming. This study proposes a hybrid method that combines limited tensile test data with digital twin model analysis to efficiently determine the tensile B-basis value of SiC/SiC composites. Using micro-computed tomography (µCT) and an image-based finite element modeling approach, 30 digital twin models were constructed to simulate tensile behavior, and the simulation results were validated against experimental data to ensure accuracy. By integrating physical testing with simulation analysis, high-confidence material strength data was obtained, successfully determining the tensile B-basis value for SiC/SiC composites. The results demonstrate that this hybrid method significantly reduces the need for extensive tensile testing while maintaining high accuracy, providing an efficient and cost-effective solution for determining the tensile B-basis value of woven SiC/SiC composites, particularly in applications where material reliability is critical.