High Temperature Compression Deformation Experiment Based on DIC Non-Contact Deformation Measurement Technology

The measurement and analysis of high temperature compression deformation has become the focus and difficulty with the development of composite materials. At present, the high temperature compression deformation measurement is still based on the strain gauge method. While the test temperature rises, the contact deformation measurement method is no longer applicable. In order to measure the high temperature compression deformation, the non-contact deformation measurement method has gradually become the useful method. This article mainly focuses on the compression deformation characteristics of CCF800 carbon fiber composites at 150 ℃, 180 ℃ and 250 ℃. The experiment results show that the compressive modulus and compressive strength of carbon fiber composite materials are negatively correlated with temperature, while the failure strain is positively correlated with temperature.