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The results obtained by this study are as follows.\u30001.\u3000The deeper the cracks progress for the radial direction\uff0c the higher the propagating rate for the superficial one\uff0c and vice versa\uff0c it was derived by analysis.  2.In both the total length of the superficial cracks and the mean depth of the radial cracks versus cycles curve\uff0c there is a sudden bent on the way. As for the former curve\uff0cthe bent lies in the early cycle\uff0c before which cracks having originated from the persistent slip bands seem to be dominant\uff0c and after which cracks from the crack tips do. With the progress of the cycle\uff0c the rise of the superficial propagating rate diminishes due to the thinner plastic zones around the crack tips through the principle stated in the previous item. \u3000\u3000\u30003.Experiment shows that the fatigue internal energy is proportional nearly to the cubic root of the fatigue crack surface area\uff0c e.g. the total length of superficial cracks multiplied by the mean radial depth of cracks.", "subitem_description_type": "Abstract"}]}, "item_2_full_name_3": {"attribute_name": "\u8457\u8005\u5225\u540d", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "32128", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Shigeyoshi, OIWAKE"}]}, {"nameIdentifiers": [{"nameIdentifier": "32129", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Hisanori, DOBA"}]}, {"nameIdentifiers": [{"nameIdentifier": "32130", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Kazuo, UNO"}]}]}, "item_2_publisher_32": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "\u5317\u898b\u5de5\u696d\u5927\u5b66"}]}, "item_2_select_15": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "\u8ffd\u5206, \u5782\u7fa9"}], "nameIdentifiers": [{"nameIdentifier": "32125", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "\u9053\u7aef, \u4e45\u7d00"}], "nameIdentifiers": [{"nameIdentifier": "32126", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "\u5b87\u91ce, \u548c\u96c4"}], "nameIdentifiers": [{"nameIdentifier": "32127", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2016-11-22"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "4-1-6.pdf", "filesize": [{"value": "3.9 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 3900000.0, "url": {"label": "4-1-6.pdf", "url": "https://kitami-it.repo.nii.ac.jp/record/6311/files/4-1-6.pdf"}, "version_id": "9ea7ce34-4f10-4200-b965-bd4601333070"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "\u306d\u3058\u308a\u75b2\u308c\u304d\u88c2\u306e\u8868\u76ae\u304a\u3088\u3073\u6df1\u3055\u65b9\u5411\u9032\u5c55\u306e\u76f8\u95a2\u306b\u3064\u3044\u3066", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "\u306d\u3058\u308a\u75b2\u308c\u304d\u88c2\u306e\u8868\u76ae\u304a\u3088\u3073\u6df1\u3055\u65b9\u5411\u9032\u5c55\u306e\u76f8\u95a2\u306b\u3064\u3044\u3066"}]}, "item_type_id": "2", "owner": "1", "path": ["7/15/25"], "permalink_uri": "https://kitami-it.repo.nii.ac.jp/records/6311", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_value": "2007-04-09"}, "publish_date": "2007-04-09", "publish_status": "0", "recid": "6311", "relation": {}, "relation_version_is_last": true, "title": ["\u306d\u3058\u308a\u75b2\u308c\u304d\u88c2\u306e\u8868\u76ae\u304a\u3088\u3073\u6df1\u3055\u65b9\u5411\u9032\u5c55\u306e\u76f8\u95a2\u306b\u3064\u3044\u3066"], "weko_shared_id": 3}