Elastic-Plastic Stress Analysis in Thermoplastic Composite Cantilever Loaded by a Single Force

In this investigation an elastic-plastic stress analysis is carried out in a steel fiber reinforced thermoplastic composite cantilever. The beam is loaded by a single force at its free end. An analytical elastic-plastic solution is found by satisfying both equations of equilibrium and boundary conditions. Orientation angles are chosen as 0°, 30°, 45°, 60° and 90°. Yielding starts at upper or lower surfaces of the beam at different distances from the free end for 30°, 45°, 60° orientation angles. Maximum residual stresses are obtained at the upper and lower surfaces of the beam. For the shear stress, maximum stress component is found around the x-axis.