Simulation of Photopolymer CT Specimen for Stress Intensity Factors

Now a days product development using prototype methods for actual usage is a growing concept in engineering. Present work deals with simulation of Compact Tension specimen to get fracture parameters J – integral and Stress intensity factors of product built by polyjet technology 3D printer additive manufacturing system. FEA simulation is carried out with the help of Abaqus software by simulating actual testing procedure by applying a tensile load on one of the pins to have mode I fracture. Fracture parameters J – integral and stress intensity factors are requested as history output. A comparison is made between the values of stress intensity factor obtained by simulation and by calculation using ASTM standard. It is observed that the values of stress intensity factor obtained by simulating the specimen in FEA software Abaqus/CAE are near to the values obtained by calculations. Keywords— stress intensity factor, polyjet technology, photopolymer, 3D printer, additive manufacturing.