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|Title:||A Fracture Test Method for Mode I Fracture of Thin Metal Materials|
Fatigue crack growth
Mode I fracture testing
|Source:||Cotterell, B.,Sim, M.C.,Amrutharaj, G.,Teoh, S.H. (1996-09). A Fracture Test Method for Mode I Fracture of Thin Metal Materials. Journal of Testing and Evaluation 24 (5) : 316-319. ScholarBank@NUS Repository.|
|Abstract:||A method of testing Mode I K dominated fractures in thin materials using a constrained short center notched tension specimen that is clamped along the loaded edge is described. Poisson's effect induces a lateral tension on the specimen that eliminates the buckling problems associated with thin materials. Furthermore, the stress intensity factor over a significant range of crack lengths and specimen geometries is dependent only on the nominal strain, making the test very suitable for crack-growth experiments under a constant-stress intensity factor. A very accurate approximate expression for the stress intensity factor is presented. A test using this method to measure the crack-growth resistance of Kapton 300HN polyimide film is described.|
|Source Title:||Journal of Testing and Evaluation|
|Appears in Collections:||Staff Publications|
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