Experimental-numerical analysis of the influence of surface layers on strain distribution at tensile elements with notch

Malgorzata Kujawinska; Leszek A. Salbut; S Kucharski; G. Starzynski

doi:10.1117/12.212639

23 June 1995 Experimental-numerical analysis of the influence of surface layers on strain distribution at tensile elements with notch

Malgorzata Kujawinska, Leszek A. Salbut, S Kucharski, G. Starzynski

Author Affiliations +

Proceedings Volume 2545, Interferometry VII: Applications; (1995) https://doi.org/10.1117/12.212639
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

The influence of a technological surface layer on the strength of machine element is confirmed by an increasing number of theoretical and numerical investigations. However, due to the use of modified finite elements in the small region of layer, as well as implementing the variation of hardening moduli in the material model, the experimental verifications of FEM results is strongly required. In this study, automated grating interferometry is applied for in-plane u and v displacment maps determination. Experimental results are compared with numerical analysis performed for the sample with and without surface layer. The increase of the strength of machine parts with the technological surface layer is confirmed experimentally. The possibility of interactive application of experimental results in order to improve numerical FEM model is discussed.

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Malgorzata Kujawinska, Leszek A. Salbut, S Kucharski, and G. Starzynski "Experimental-numerical analysis of the influence of surface layers on strain distribution at tensile elements with notch", Proc. SPIE 2545, Interferometry VII: Applications, (23 June 1995); https://doi.org/10.1117/12.212639

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