X-Ray Fractographic Study On Fracture of a Machine Part
The X-ray fractographic technique was applied to an actual fracture incident for a machine part made of a low-alloy steel. The distribution of the residual stress was measured on and beneath the fracture surface by the X-ray method. The plastic zone size was determind from the distribution of the residual stress near the fracture surface and was used to estimate the maximum stress intensity factor Kmax at fracture by using the relation between the plastic zone size and K,“ax obtained in laboratory tests.
KeywordsResidual Stress Fracture Surface Stress Intensity Factor Machine Part Nodular Cast Iron
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