Abstract: A novel mixed mode fracture test specimen - a semi-circular disc with an edge crack under three point bending is the focus of this investigation. finite element modelling using a commercial FEA software(ANSYS) is presented to compute accurate mixed mode stress intensity factors(KI, KII) as a function of crack lengths (a/R) and support locations (S2= αR). Choosing the Strain Energy Density Theory of fracture and the material properties of PMMA Poly(methyl meth acrylate), predicted crack growth direction and fracture load are graphically presented. These are co-related with available mixed mode fracture test results. comparisons are also made with candidate fracture criteria.
Keyword: Mixed mode fracture, Strain Energy Density theory, PMMA, Stress Intensity Factor.
Title: STUDIES ON MIXED MODE FRACTURE: PREDICTION AND VERIFICATION
Author: Shankar Devalapur, Dr.Basawaraj, Dr. H. V Lakshminarayana
International Journal of Mechanical and Industrial Technology
ISSN 2348-7593 (Online)
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