In the present study, an elastic-plastic stress analysis is carried out on a high-density thermoplastic-based composite cantilever beam loaded by a single force at its free end. An analytical solution is performed for satisfying both the governing differential equation in the plane stress case and boundary conditions for small plastic deformations. The solution is carried out under the assumption of the Bernoulli-Navier hypotheses. The composite material is assumed to be strainhardening. The Tsai-Hill theory is used as a yield criterion. The residual stress component of x are determined for 0, 30, 45, 60 and 90 orientation angles. It is found that the intensity of the residual stress is maximum at the upper and lower surfaces of the beam. The horizontal displacement component of u is greater than the vertical displacement component of v.

A composite is made of several different things, parts or substances. There has been a rapid growth in the use of fiber-reinforced materials in engineering applications in the last few years. In this paper, two deflection functions due to both flexure and shear of an orthotropic cantilever beam loaded linearly at the upper surface are obtained by means of the anisotropic elasticity theory. The deflections at the free end of the beam are calculated for various orientation angles and lengths. The results obtained for the linearly distributed loaded beams are compared to that of the uniformly distributed loaded beams studied earlier. Shear deflection is the smallest for 45 orientation angle for uniformly and linearly distributed loaded beams.