In order to predict the fracture parameters correctly and efficiently, it is very important to look after the factors that affect the crack parameters. Specimen geometry is one such parameter which affects the parameters around the crack tip. This paper numerically investigates the effect of the thickness of the specimen on the crack parameters using the Finite Element Analysis tool ‘ANSYS’. A side edge notched bend specimen was modeled and analyzed under three point bend condition for different specimen thickness. It was observed that with the increase in the thickness, the crack parameters around the crack tip decreases, and this increase in thickness leads to the shift of the state of stress from plane stress to plane strain.
thickness effect, side edge notched bend, crack mouth opening displacement, crack tip opening displacement, stress intensity factor
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