Abstract
1. We obtained an expression to determine the stress intensity factor of reinforced laminated plastics with a hole and cracks reaching the contour of this hole when the plastics are subjected to axial compression. 2. It was shown that it is possible to use composite specimens with a cross-shaped hole to determine the limiting stress intensity factor in axial compression. 3. It was established that hybridization of a carbon-fiber-reinforced plastic increases the limiting stress intensity factor in axial compression and slows the propagation of a crack. 4. An expression was obtained to determine the stress intensity factor in the lateral compression of a transversely isotropic body with an ellipsoidal cavity and a crack which reaches this cavity.
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