New jig adapted for compression fatigue tests on composite materials

Abstract

This paper presents a new adapted jig to perform quasi-static and fatigue compression tests based on the Combined Loading Compression (CLC), ASTM D6641 standard. This new jig is proposed to enable the performance of both static and fatigue tests accommodating various types of composite materials, different test standards, and coupons sizes. In order to validate the new testing jig, quasi-static and fatigue tests were performed in a composite with bidirectional carbon-fiber fabric type 8HS (Hardness Satin) with epoxy resin matrix. The numer 8 on 8HS means that during the production process, the warp yarn goes over seven before going under one fill yarn. The static and fatigue compressive stresses obtained for the 8HS composite were 643.2 MPa and 436.6 MPa respectively.