表面に押込み損傷を受けたGFRP積層板の曲げ疲れ強さに関する研究

概要

論文の詳細を見る
In response to a demand for light weight structures, FRP has been widely used as an advanced industrial material. However, its surface is easily damaged by harder foreign materials, nevertheless, the effect of that damage on the fatigue strength of FRP laminates has not been well investigated. Most of the investigations have been treated on artificial surface notch so far. In this study, therefore, the influence of the fatigue strength of FRP laminates with surface indentation damage was studied. Tow kinds of FRP laminates were tested under bending fatigue. Moreover, discussion of the experimental results has taken into account some stress fracture criteria, using the results of 3-D FEM stress analysis. As a result, the point stress criterion was best fitted to the present experimental results.
社団法人日本機械学会の論文
1986-04-25