AN ANALYTICAL ELASTIC-PLASTIC STRESS ANALYSIS IN A WOVEN STEEL REINFORCED THERMOPLASTIC CANTILEVER BEAM LOADED UNIFORMLY

摘要

In this investigation, an elastic-plastic stress analysis is carried out in a woven steel fiber reinforced thermoplastic (LDPE, F.2.12) composite cantilever beam loaded uniformly at the upper surface. Closed form solution is found satisfying both the governing differential equation and boundary conditions. The beam is loaded by a small uniform force at the upper surface, therefore during the solution of the problem for the elastic-plastic case; the normal stress a_y is neglected in comparison with other stress components. The orientation angles of the fibers are chosen as 0°, 15°, 30° and 45°. The intensity of the residual stress component of a_x is maximum at the upper and/or lower surfaces of the beam. The intensity of the residual stress component of the shear stress Txy is maximum on or around the x axis.