Volume : 2, Issue : 4, April - 2013
Experimental and Computational Analysis of Fracture Toughness Parameters & Crack Growth Initiation of Pressure Vessel Material Used in Disc Shaped Compact Tension Specimen
Patil Prafulkumar G. , Hajare Prashant, Dr. K. G. Dave
Abstract :
Stress intensity factor (K), J–Integral & Crack tip opening displacement (CTOD) is used in fracture mechanics to more accurately predict the stress state near the tip of a crack caused by an inaccessible load or residual stresses. The present paper describes to evaluate critical stress intensity factor of disc shaped compact specimen DC(T) which have crack/ width ratio suggested by ASTM E–399 for pressure vessels materials IS 2062 and SA 516 Gr–70 with different thickness. Simultaneously the experimental results has been examined by numerical simulation of disc shaped compact specimen using ANSYS with Westerguard method to find stress intensity factor for each case. A comparison with an Experimental Vs Computational investigation on disc shape compact tension specimen suggests the validation of both the results.
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Download PDF Journal DOI : 10.15373/2249555XCite This Article:
Patil Prafulkumar G., Hajare Prashant, Dr. K. G. Dave Experimental and Computational Analysis of Fracture Toughness Parameters & Crack Growth Initiation of Pressure Vessel Material Used in Disc Shaped Compact Tension Specimen Global Journal For Research