Eccentric compression bending test for CFRP pipe

Abstract

This paper reports a new test method to evaluate the bending strength of composite pipes. In the past, we proposed a compression bending test method to get more reliable bending strength values than the conventional three- or four-point bending test. This compression bending was successfully applied not only to flat CFRP coupons but also to slender CFRP pipes. However, if the diameter of the pipe is relatively large, this compression bending is not necessarily appropriate. Therefore, as a step forward to accurate determination of compression bending, an eccentric compression bending test method is tried in the present paper.

Keywords:

• cfrp pipe
• eccentric compression bending
• bending strength
• failure pattern.