Crack Arrestment of Pi-Joined Bonded Composites

摘要: This paper describes current results of an ongoing program to develop a test verified analysis method for crack arrestment bonded structures. Bonded specimens have been tested with and without fasteners, which include wide pull-off pi-joint specimen (Mode I), double shear I-beam II). Finite element models utilizing the Virtual Crack Closure Technique (VCCT) progression constructed simulate arrest capability fasteners in bondline these composite joints. Promising comparisons were achieved between tests, showing ability damage modeling technique predict residual strength. However, model also shown that although interlaminar fracture failure modes are necessary prediction behavior, additional occurred tests will need be included simulations.