Cumulative creep damage for polycarbonate and polysulfoneCreep to failure tests performed on polycarbonate and polysulfone under single and two step loadings are discussed. A cumulative damage law or modified time fraction rule is developed using a power law for transient creep response as the starting point. Experimental results are approximated well by the new rule. Damage and failure mechanisms associated with the two materials are suggested.
Document ID
19860049879
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zhang, M. J. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Straight, M. R. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Brinson, H. F. (Virginia Polytechnic Institute and State University Blacksburg, United States)