Page 299 - Biaxial Multiaxial Fatigue and Fracture
P. 299

An Analysis of Elasto-Plastic Strains and Stresses in Notched Bodies Subjected to Cyclic .__   283

                - stress concentration factor due to axial load

                - stress concentration factor due to torsional load
                - load increment number
                - Kronecker delta, 6,j = 1 for i = j and 6,, = 0 for i # j

                - plastic strain increments
                - elastic strain increments
                - actual elastic-plastic strain increments
                 - equivalent plastic strain increment

                - pseudo-elastic stress components
                - actual stress components

                - actual equivalent stress increment
                - deviatoric stresses of the elastic input
                - actual deviatoric stresses

                - actual equivalent plastic strain
                 - actual elasto-plastic notch-tip strains
                 - elastic notch tip strain components

                - nominal strain
                - Poisson's ratio
                - actual equivalent stress at the notch tip

                - actual stress tensor components in the notch tip
                - notch tip stress tensor components of the elastic input

                - parameter of the material stress-strain curve (yield strength)
                - axial load
                - torque
                - radius of the cylindrical specimen
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