チェーンの疲労特性

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  • Fatigue properties of actual chains.
  • チェーン ノ ヒロウ トクセイ

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The fatigue properties of various chains such as high-ten chain, and mild steel chain are confirmed by actual fatigue tests and are analyzed by the finite element method. The main results obtained are as follows : (1) The strain state of chain is an elastic-plastic strain state under a working load, but the relation between load and strain is liner under a proof load. (2) The fatigue cracks initiate on the border of a link bend part and a straight part. It is the same as the largest stress part by the finite element method. (3) The fatigue strength is well estimated by Manson's empirical formula. (4) It is found that the fatigue strength depends on not only the material strength but also the dimensions of the chain.

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