July 12th, 2013
Laboratory Testing Inc. recently introduced fatigue crack growth testing as one of our many mechanical testing services. Our lab technicians performs fatigue crack growth testing, also called da/dN testing, according to the ASTM E647 standard. The fatigue crack growth test reports a material’s resistance to stable crack extension under cyclic loading.
Fatigue crack growth rates from the threshold regime to the critical region are typically developed using constant load or K-controlled parameters. The automated fatigue crack growth testing system at LTI uses MTS closed loop servo-hydraulic load frames controlled by FTA ADWin based system. Crack length is monitored using the compliance (FCGR-C) method.
Fatigue Crack Growth Testing capabilities include the following: (…)
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