A compressive failure model for anisotropic plates with a cutout under compressive and shear loadsThe paper introduces a failure model for laminated composite plates with a cutout under combined compressive and shear loads. The model is based on kinking failure of the load-carrying fibers around a cutout, and includes the effect of local shearing and compressive stresses. Comparison of predictions of the model with available experimental results for quasi-isotropic and orthotropic plates with a circular hole indicated a good agreement. Predictions for orthotropic plates under combined loading are compared with the predictions of a point-stress model. The present model indicates significant reductions in axial load-carrying capacity due to shearing loads for plates with principal axis of orthotropy oriented along the axial load direction. A gain in strength is achieved by rotating the axis of orthotropy to counteract the shearing stress, or by eliminating the compressive-shear deformation coupling.
Document ID
19860054136
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gurdal, Z. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Haftka, R. T. (Virginia Polytechnic Institute and State University Blacksburg, United States)