Investigation of the Thermomechanical Behavior of a 2 x 2 TWILL Weave Fabric Advanced Textile Composite

The thermomechanical performance of a 2 x 2 twill weave fabric advanced textile composite was evaluated. The tensile, compressive, and flexural properties of flat beam specimens of the composite were tested at room temperature, in water (24.9 to 96.7A degrees C), and in liquid nitrogen (-96.9 to 99.4A degrees C) by using a high-precision instrument called the dynamic mechanical analyzer (DMA). The storage modulus and tan delta of the carbonfiber-reinforced plastic (CFRP) specimens at various temperatures were evaluated. The scanning electron micrograph (SEMs) of deformed composite specimens revealed their failure mode (fiber pull-out, debonding, crack propagation, delamination, matrix cracking, and kinking of fibers).