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Analysis of residual stresses induced by dry turning of difficult-to-machine ma...
Outeiro, J. C.; Pina, J. C.; Saoubi, R. M'; Pusavec, F.; Jawahir, I. S.Critical issues in machining of difficult-to-cut materials are often associated with short tool-life and poor surface integrity, where the resulting tensile residual stresses on the machined surface significantly affect the component's fatigue life. This study presents the influence of cutting process parameters on machining performance and surface integrity generated during dry turning of Inconel 718 and auste...
Residual stress effect on fatigue striation spacing in a cold-worked rivet hole
Matos, P. F. P. de; Moreira, P. M. G. P.; Pina, J. C. P.; Dias, A. M.; Castro, P. M. S. T. deThe residual stress effect due to cold-working is studied in relation to fatigue striation spacing. Cold-working introduces a compressive stress field around the hole reducing the tendency for fatigue cracks to initiate and grow under cyclic mechanical loading. It is known that fatigue lifetime assessment requires a detailed knowledge of the residual stress profile. X-ray diffraction and 3D finite element analy...
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