An analytical elastic-plastic stress analysis in a woven steel reinforced thermoplastic cantilever beam loaded uniformly

In this investigation, an elastic-plastic stress analysis is carried out in a woven steel fiber reinforced thermoplastic (LDFE, 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 sigma(y) is neglected in comparison with other stress components. The orientation angle of the fibers are chosen as 0, 15, 30 and 45 degrees. The intensity of the residual stress component of a, is maximum at the upper and/or lower surfaces of the beam. The intensity of the residual stress component of the shear stress tau(xy) is maximum on or around the x axis. (C) 2000 Elsevier Science Ltd. All rights reserved.