線材の漸増応力疲労試験について

概要

論文の詳細を見る
In order to clarify the relations between the progressive stress and fatigue strength of steel wires, a fatigue testing machine was devised and constructed, utilizing the buckling which was produced when one end of the wire was rigidly fixed and the other was hinged without friction. This machine has several advantages. It has but small resistance at the hinged end, and it is fit to perform the test under progressive stress by application of a simple device. The fatigue tests were carried out under the logarithmically increased stress and it has been found that the rupture stress is approximately expressed by the following formula : log σ_R= logσ_w+K(σ_R/N_R)^<1/4> : where σ_R : rupture stress, σ_w : fatigue limit, K : constant and N_R : the number of cycles to failure.
社団法人日本材料学会の論文
1969-04-15