Comparison of the Simulation and Experimental Mechanical Properties of B₄C-ZrB₂/Al Interpenetrating Phase Composites (IPC)

Abstract:

Interpenetrating phase composites (IPCs) are becoming an important class of materials as the result of the development of a number of new techniques for producing composites with interpenetrating microstructures. In this paper, the mechanical properties of a B₄C-ZrB₂/Al IPCs have been studied using the Solidwork simulation code applied the finite element method (FEM). The results have shown that the B₄C-ZrB₂ ceramic matrix and Al network exhibit different mechanical behaviour. The ultimate stress is found near the interface of the composites. Simulated data shows ultimate tensile strengths of up to 453 MPa at a failure strain of up to 0.5%. The compression strength was up to 615 MPa with 0.41% compressive strain to failure. The composites show an excellent resistance to high cycle fatigue. Fatigue life for specimen was 5.1×10⁴ cycles for 210 MPa while R =-1.0, and 5.6×10⁴ cycles for 133 MPa while R=-0.05. Infiltrated Al addition was the leading reason for the fracture toughness improvement of the composites. The simulated results are consistent with the experimental results well.

• Periodical: Applied Mechanics and Materials (Volumes 365-366)
• Pages: 1058-1061
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.365-366.1058
• Online since: August 2013
• Authors: Yong Sen Wei, Ping Huang, Ri Fei Yang, Sen Kai Lu
• Keywords: B₄C-ZrB₂/Al, Finite Element Method (FEM), Interpenetrating Phase Composites, Micromechanical Properties

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