Experimental evaluation and theoretical prediction of elastic properties and failure of C/C‐SiC composite

The paper presents experimental characterization and theoretical predictions of elastic failure properties continuous carbon fiber reinforced silicon carbide (C/C-SiC) composite fabricated by Liquid Silicon Infiltration (LSI). Its mechanical were determined under uniaxial tensile, compression, pure shear loads in two sets principal coordinate systems, 0°–90° ±45°, respectively. measured the system employed as input data to predict their counterparts ±45° system. Through transformations stress strain tensors, constants stress-strain behaviors predicted found be good agreement with results. In same way, three different criteria, maximum stress, Tsai-Wu, strain, have been selected for evaluation C/C-SiC a type genuinely orthotropic material. Based on comparisons results, supported necessary practical justifications, Tsai-Wu criterion was offer reasonable prediction strengths, which can assisted obtain an indicative respective modes.