Evaluation of Failure Strength of Woven CFRP Composite Plate Subject to Axial Load by Tan-Cheng Failure Criterion

In the manufacture of CFRP(Carbon Fiber Reinforced Polymer Composite) composite structures, various independent components join by bolts and pins. Holes for bolts and pins have an effect on the failure strength of such structures, because those act as notches in structures. The failure characteristic of such structures are different from those of plain plate subject to remote load. In this paper, tensile properties of woven CFRP composite plates with laminates of 0 .deg., 30 .deg. and 45 .deg. were obtained according to ASTM D 3039. By using obtained tensile failure strength and Tan-Cheng failure criterion, tensile failure strength of CFRP laminate with arbitrary fiber angle were evaluated. Also, the degradation of tensile properties by center hole(Φ10mm) with a remote load was evaluated and the failure strengths were applied to Tan's failure criterion, similarly