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International Journal of Automotive Technology 2006;7(3): 337-343. |
| CORRELATION BETWEEN J-INTEGRAL AND CMOD IN IMPACT BEHAVIOR OF 3-POINT BEND SPECIMEN |
| M. S. HAN1, J. U. CHO2 |
1Keimyung University
2Gongju National University |
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| ABSTRACT |
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Numerical calculations are made in order to find a possible correlation between the J-integral and the crack mouth opening displacement (CMOD) in dynamic nonlinear fracture experiments of 3-point bend (3PB) specimens. Both elastic-plastic and elastic-viscoplastic materials are considered at different impact velocities. The J-integral may be estimated from the crack mouth opening displacement which can be measured directly from photographs taken during dynamic experiments. |
| Key Words:
Dynamic nonlinear fracture, 3PB specimen, Crack mouth opening displacement, Viscoplastic property, J-integral |
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