The characterization of indentation of 2D C/SiC composites subjected to quasi-static indentation

In order to examine the mechanical properties of 2D C/SiC composites with invisible damages induced by external forces, this paper employed thermal imaging testing and residual strength testing to characterize the damage of 2D C/SiC composites induced by quasi-static indentation (QSI). The results indicated that when the energy applied reached 0.75 J, damage started to occur inside the composites; above 1.8 J (the contact force was above 1700 N, and the depth reached 1 mm), the damage mode transformed. With the aggravation of the damage, the decreasing rate of residual compressive strength was nearly 2 times higher than that of the residual tensile strength.