Lockheed Research Laboratory, Palo Alto, CA
Advanced polymeric composite material systems are viscoelastic. Because of this, their response to mechanical and/or hygrothermal loading is dependent on time, temperature, environmental conditions, and their prior stress (strain) history. In turn, this dependence causes composite materials to experience a “shift” in their real-time behavior under hygrothermal conditions that accelerates stress relaxation and creep.
Paper ID: CTR10674J