Numerical Determination of Initiation Fracture Toughness of High-Pressure Die Cast Aluminium Metal Matrix Composite Material Using FEM Analysis

The critical stress intensity factor for high-pressure die casted aluminium metal matrix composite material is rarely reported in the literature. The understanding of this parameter is very much essential for exploring the application of this material in automobile and aviation industries relying on light-weight materials. In the present study, critical stress intensity factor for pressure die cast aluminium alloy (ADC12) has been determined numerically, which compares well with experimental values. The variation due to fracture specimen thickness and relative crack size is also studied for the material.