Analytical Study of Clamped Steel Fiber Reinforced Aluminum Metal Matrix Composite Including Elasto-Plastic Behavior

Abstract

The elasto-plastic behaviour of steel fiber reinforced aluminum metal matrix composite with five different orientations has been investigated, including the effect of single force. A composite beam with a rectangular cross section is fixed at one end and is bent by a transverse force P applied to the free end. To determine analytically, residual stresses and the expansion of plastic zone for different orientation angles a software program is developed and this program makes it possible to establish elastic region, plastic region, the distributions of the residual stress component, the distance between the free end and yield points for 0°, 30°, 45°, 60° and 90° orientation angles. To verify the analytical solutions, the sophisticated finite element code such as ANSYS 5.6 was used to perform numerical analyses.

The results from this analytical approach show that the composites with different orientation angles start yielding at the same distances from the free end at the upper and lower surfaces of the beam. In other words, the plastic region spread at the upper and lower surfaces together. It is also shown that the distance between plastic region and free end of the beam decreases due to increasing orientation angle.

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