Paper number 1194
|INFLUENCE OF TEMPERATURE ON THE DURABILITY OF POLYMER COMPOSITE SYSTEMS|
CÚline A. Mahieux and Kenneth L. Reifsnider
Materials Response Group, Virginia Tech
120 Patton Hall, Blacksburg, VA 24060, USA
|Summary||An innovative approach to the temperature dependence of polymer-based systems was used in the present paper. An engineering model was developed that can describe the modulus versus temperature behavior of any polymer (thermoset, thermoplastic, amorphous, semi-crystalline, low/high molecular weight...) from the glassy state to the flow region. This model was applied to neat polyphenylene sulfide (PPS) and successfully integrated into a micromechanics model (compression) that describes the behavior of unidirectional AS4/PPS composite in end-loaded bending. Finally, the importance of this approach for durability tools was illustrated by integrating the stiffness-temperature polymer model into a life prediction code called MRLife to predict the life of a unidirectional carbon fiber polymer matrix composite under combined thermal and mechanical loads.
||Keywords|| durability, PMC, temperature, stress rupture, fatigue, MRLife.
Theme : Durability and Ageing
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