一方向CFRP積層板の曲げによる静的, クリープおよび疲労の破壊挙動の時間および温度依存性

概要

論文の詳細を見る
The flexural static, creep and fatigue fracture behavior of unidirectional CFRP laminates of a general type of thermosetting resin with a PAN-based carbon fiber, were investigated by three-point bending tests over a wide range of temperature and deflection rate. The flexural fracture behavior by the fractographs as well as the strength of the static, the creep and the fatigue loading remarkably depend on the testing rate and temperature. The master curves for these strengths can be produced by using the time-temperature superposition principle. The time-temperature shift factors for the three kinds of strengths were quantitatively in good agreement with that for the stress-strain relation of the matrix resins. Therefore the time and temperature dependences of fracture behavior are mainly controlled by the viscoelastic behavior of the matrix resin.
日本複合材料学会の論文
1998-07-15