Temperature Dependence of the Fracture Toughness of Adhesively Bonded Joints

摘要: Adhesives used in structural high temperature space and aerospace applications must operate extreme environments. They need to exhibit high-temperature capabilities order maintain their mechanical properties integrity at the intended service temperature. One class of adhesives which are able withstand extremes that experienced environment a good degree flexibility very low temperatures room vulcanizing (RTV) silicone adhesives. As is known, adhesive strength generally shows dependence. Similarly, fracture toughness expected show In this study, pure mode I for joints bonded with RTV was measured over wide range temperatures. Double cantilever beam (DCB) tests were performed on specimens (RT), 100 200°C. Mode traction–separation laws obtain...