Abstract
A method for calculating elasto-plastic notch tip strains and stresses in bodies subjected to multiaxial loading has been presented. The method has been formulated in terms of strain energy density relationships. Two approximate formulae are derived based on the analysis of strain energy density in the notch tip region. The two formulae represent the lower and upper limits of the band within which the actual elasto-plastic notch tip strains can be found. All necessary relationships are derived for a general multiaxial stress state. The calculated notch tip strain and stress components are compared with experimental and finite element data obtained for a variety of loading conditions and materials. This method may be particularly useful for stress/strain analysis of notched components subjected to lengthy multiaxial cyclic loading histories.
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On leave from Warsaw University of Technology.
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Moftakhar, A., Buczynski, A. & Glinka, G. Calculation of elasto-plastic strains and stresses in notches under multiaxial loading. Int J Fract 70, 357–373 (1994). https://doi.org/10.1007/BF00032453
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DOI: https://doi.org/10.1007/BF00032453