ASPECTS OF THE MECHNANICAL BEHAVIOR OF STITCHED T300 MAT/URETHANE 420 IMR COMPOSITE

Deng, S.

Oak Ridge National Laboratory

关键词: Mechanical Properties;    Polymers;    36 Materials Science;    Mathematical Models;    Urethane;   

DOI  :  10.2172/814477
RP-ID  :  ORNL/TM-2002/86
RP-ID  :  AC05-00OR22725
RP-ID  :  814477

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report presents experimental and analytical results concerning the behavior of crossply and quasi-isotropic laminates manufactured of stitch-bonded T300 urethane 420 IMR polymeric composites. Based on extensive creep and recovery data at various levels of stress and temperature, as well as on strain-to-failure information, it was possible to arrive at empirical expressions relating deformation to the previous input as well as to input duration. These expressions were incorporated within the formalisms of viscoelasticity and laminate theory to illuminate some basic underlying mechanistic aspects of the material at hand, thereby enabling the prediction of anticipated response under more complex stress and temperature inputs.