Abstract
A 35-layer laminated metal composite, consisting of alternating ultrahigh carbon steel (UHCS) and brass layers, was evaluated for its plasticity and fracture characteristics in bending. The unnotched composite achieved remarkable ductility exhibiting a 0T bend ( i.e. bent upon itself) without failure. Voids were formed in the tension and compression regions of the UHCS layers and were associated with elongated carbide particles. Even with initial notches on the surface, the composite can be bent without failure. Delamination and crack tip blunting in the brass layer inhibited crack propagation and prevented total failure. Propagation of cracks occurs at about 45° to the maximum tensile stress direction. In contrast, laminated polymer-base composites fracture at 90° to the maximum tensile stress direction.
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