AI Summary & Key Takeaways
AI InsightThe intensity of the residual stress component of $\tau_{xy}$ is maximum on or around the x axis of the beam but the residual stress component of ox is maximum at the upper and lower surfaces.
📌 3 Key Takeaways
Abstract
Polymer matrix composite beam of arbitrary orientation subjected to transverse uniformly distributed load is studied by an analytical elasto-plastic stress analysis. In the elasto-plastic solution, the material is assumed to be perfectly plastic. A composite consisting of fiber reinforced polymer matrix was produced for this work. The expansion of the plastic region and the residual stress component of $\sigma_x$ are determined for 0°, 30°, 45°, 60° and 90° orientation angles. The yielding begins for 0° and 90° orientation angles at the upper and lower surfaces of the beam at the same distances from the free end. But, it starts first at the upper surface for 30°, 45° and 60° orientation angles. Sample problems are given for various orientation angles, x axis of the beam is used to obtain the location of the elasto-plastic boundary and to calculate elastic, elasto-plastic and residual normal and shear stresses. The intensity of the residual stress component of $\tau_{xy}$ is maximum on or around the x axis of the beam but the residual stress component of ox is maximum at the upper and lower surfaces.