Enhancement of Fracture Toughness for SiC (23 µ) Reinforced AALM12 MMCs by Tensile Test and FE Analysis

Abstract

The developed AALM12 samples are prepared by using the stir casting techniques with the SiC (23 µm) used as filler material at different compositions (0%wt.–20%wt.) for very 5%wt increments. The facture toughness is an important mechanical property of the material. To study of the fracture toughness mechanics when stress intensity factor in crack tip is equal to the material fracture toughness, crack will start to grow in the material. This analysis is a help to prediction of material fracture toughness property well in advance due to controls the damages, accidents, energy and overall economy point of view with the different load and temperature conditions. This is especially this is suitable to material thickness strength and to predict and controls the failures of materials. The oil or gas fluid flowing inside the pipe carrying with high pressure in all the directions within the wall surface of the pipe, in that specific applications, the fracture toughness analysis is very helpful and material turn into more strength and stiffer before failure of material and avoids to such type of damages. Also, leakages/cracks problems are rapidly occurred in automobile fuel tanks, high pressurized cylinders and oil/milk transport tankers, this analysis is helping to controls the damages in advance. To calculate the theoretical stress intensity factor results of using compact tension model by using empirical formulae and those obtained results are compare with the FE analysis by using ABAQUS software. With this analysis, the results are indicated to fracture toughness is improved in the developed samples with increased reinforced in the MMCs and these phenomena explained in detailed in this article.