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3\u9762\u4ed5\u4e0a\u3052<\/h3>\n\n\n\n \u75b2\u52b4\u4e80\u88c2\u306f\u901a\u5e38\u3001\u6b20\u9665\u306e\u3042\u308b\u90e8\u54c1\u306e\u8868\u9762\u306b\u6700\u521d\u306b\u73fe\u308c\u308b\u305f\u3081\u3001\u8868\u9762\u306e\u54c1\u8cea\u304c\u4e80\u88c2\u306e\u767a\u751f\u78ba\u7387\u306b\u5927\u304d\u304f\u5f71\u97ff\u3057\u307e\u3059\u3002\u307b\u3068\u3093\u3069\u306e\u6750\u6599\u8a66\u9a13\u30b5\u30f3\u30d7\u30eb\u306f\u93e1\u9762\u4ed5\u4e0a\u3052\u3067\u3059\u304c\u3001\u6700\u9ad8\u306e\u75b2\u52b4\u5bff\u547d\u3082\u5b9f\u73fe\u3057\u307e\u3059\u3002\u5b9f\u969b\u3001\u307b\u3068\u3093\u3069\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u30b5\u30f3\u30d7\u30eb\u3068\u6bd4\u8f03\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u75b2\u52b4\u7279\u6027\u3092\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u8868\u9762\u4ed5\u4e0a\u3052\u306f\u3001\u4f4e\u632f\u5e45\u5fdc\u529b\u30b5\u30a4\u30af\u30eb\u306b\u3055\u3089\u3055\u308c\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u75b2\u52b4\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/p>\n\n\n\n\u56f3 7 \u30b5\u30a4\u30af\u30eb\u30b7\u30fc\u30b1\u30f3\u30b9\u306e\u5f71\u97ff\u306e\u6a21\u5f0f\u56f3 \u8868\u9762\u4ed5\u4e0a\u3052\u306e\u5f71\u97ff\u306f\u3001\u30e2\u30c7\u30eb\u5316\u3001\u3064\u307e\u308a SN \u66f2\u7dda\u306b\u75b2\u52b4\u9650\u754c\u3067\u306e\u8868\u9762\u88dc\u6b63\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u639b\u3051\u308b\u3053\u3068\u3067\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/figcaption><\/figure>\n\n\n\n4 \u8868\u9762\u51e6\u7406<\/h3>\n\n\n\n \u8868\u9762\u51e6\u7406\u306f\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u8010\u75b2\u52b4\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u8868\u9762\u51e6\u7406\u306e\u76ee\u7684\u306f\u3001\u8868\u9762\u306b\u6b8b\u7559\u5727\u7e2e\u5fdc\u529b\u3092\u5f62\u6210\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u4f4e\u632f\u5e45\u671f\u9593\u3067\u306f\u3001\u8868\u9762\u306e\u5fdc\u529b\u306f\u660e\u3089\u304b\u306b\u4f4e\u304f\u3001\u5727\u7e2e\u72b6\u614b\u3092\u7dad\u6301\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u75b2\u52b4\u5bff\u547d\u3092\u5927\u5e45\u306b\u5ef6\u3070\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u6307\u6458\u3057\u305f\u3088\u3046\u306b\u3001\u3053\u306e\u72b6\u6cc1\u306f\u3001\u632f\u5e45\u306e\u5c0f\u3055\u3044\u5fdc\u529b\u30b5\u30a4\u30af\u30eb\u3092\u53d7\u3051\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u306e\u307f\u6709\u52b9\u3067\u3059\u3002\u9ad8\u632f\u5e45\u671f\u9593\u3092\u9069\u7528\u3059\u308b\u3068\u3001\u4e8b\u524d\u5727\u7e2e\u306f\u9ad8\u632f\u5e45\u671f\u9593\u306b\u3088\u3063\u3066\u514b\u670d\u3055\u308c\u3001\u305d\u306e\u5229\u70b9\u304c\u5931\u308f\u308c\u307e\u3059\u3002\u8868\u9762\u54c1\u8cea\u3068\u540c\u69d8\u306b\u3001\u8868\u9762\u51e6\u7406\u306e\u5f71\u97ff\u306f\u30e2\u30c7\u30ea\u30f3\u30b0\u306b\u3088\u3063\u3066\u793a\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"
Fatigue cracks are generally the result of periodic plastic deformation in local areas. Fatigue is defined as “failure under repeated load or other types of load conditions, and this load level is not sufficient to cause failure when applied only once.” This plastic deformation occurs not because of the theoretical stress on the ideal component, but because the component surface can not be actually detected. August W\u00f6hler is the pioneer of fatigue research and puts forward an empirical method. Between 1852 and 1870, w \u00f6 hler studied the progressive failure of railway axles. He built the test-bed shown in Figure 1. This test-bed enables two railway axles to be rotated and…<\/p>","protected":false},"author":2,"featured_media":21253,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[79],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2022\/07\/\u56fe\u72472.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/ja\/wp-json\/wp\/v2\/posts\/21250"}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/ja\/wp-json\/wp\/v2\/comments?post=21250"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/ja\/wp-json\/wp\/v2\/posts\/21250\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/ja\/wp-json\/wp\/v2\/media\/21253"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/ja\/wp-json\/wp\/v2\/media?parent=21250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/ja\/wp-json\/wp\/v2\/categories?post=21250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/ja\/wp-json\/wp\/v2\/tags?post=21250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}