Shape of the Cyclic Stress-Strain Loop in the Low-Cycle Fatigue Tests

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概要

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• The stress-strain relations for nickel-chrome steel, aluminum, and low-carbon steel were investigated under various cyclic loading conditions, such as constant strain cycling, constant load cycling with and without mean stress. The following approximate formula to represent the shape of cyclic stress-strain loop was obtained for the whole range of life excluding the initial and final periods, [numerical formula] where σ and ε denote the changes of stress and strain in each half cycle measured from the tip of each loop, σ_<max> is the maximum tensile stress in each half cycle and K, m, and p are material constants. Cyclic stress-strain curve proposed by Morrow can be deduced from the above formula in a special case.

• 一般社団法人日本機械学会の論文

著者

• Shiratori Eiryo

  Research Laboratory Of Precision Machinery And Electronics Tokyo Institute Of Technology

• Obataya Yoichi

  Associate Research Laboratory Of Precision Machinery And Electronics Tokyo Institute Of Technology

• Obataya Yoichi

  Assoclate Research Laboratory Of Precision Machinery And Electronics Tokyo Institute Of Technology

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