{"_buckets": {"deposit": "8241ceba-9794-4eeb-9fef-8fa92351b3e3"}, "_deposit": {"id": "28340", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "28340"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00028340"}, "item_7_alternative_title_1": {"attribute_name": "\u305d\u306e\u4ed6\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "AE\u30ec\u30fc\u30c8\u30d7\u30ed\u30bb\u30b9\u89e3\u6790\u3092\u7528\u3044\u305f\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u640d\u50b7\u63a8\u5b9a\u306b\u95a2\u3059\u308b\u7814\u7a76"}]}, "item_7_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2011-09", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "1", "bibliographicPageEnd": "47", "bibliographicPageStart": "43", "bibliographicVolumeNumber": "64", "bibliographic_titles": [{"bibliographic_title": "\u65b0\u6f5f\u5927\u5b66\u8fb2\u5b66\u90e8\u7814\u7a76\u5831\u544a"}, {"bibliographic_title": "\u65b0\u6f5f\u5927\u5b66\u8fb2\u5b66\u90e8\u7814\u7a76\u5831\u544a", "bibliographic_titleLang": "en"}]}]}, "item_7_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "The durability of concrete structures decreases easily due to such external effects, as neutralization and freezingthawingprocess. The degree of damage in concrete is, in most cases, evaluated by an unconfined compression test and arebound hammer test. For effective maintenance and management of concrete structures, it is necessary to evaluate notonly the strength of concrete but also the degree of damage. Quantitative damage evaluation of concrete is proposed byapplying acoustic emission (AE) method and damage mechanics.\u3000In this study, damaged concrete samples are examined, based on fracturing behavior under unconfined compression.AE behavior of the concrete under compression is dependent on the degree of damage, and could be approximated, applyingthe rate process analysis. Using Loland\u0027s model, a relationship between stress and strain is modeled, and a relation betweenAE rate and the damage parameter is correlated. By calculating the relative damage from the database based on thisrelation, the initial damage of the concrete in an actual structure is successfully estimated.", "subitem_description_type": "Abstract"}, {"subitem_description": "\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u69cb\u9020\u7269\u306b\u95a2\u3059\u308b\u8010\u4e45\u6027\u306e\u4f4e\u4e0b\u306f\u3001\u5916\u90e8\u74b0\u5883\u306e\u5f71\u97ff\u306b\u3088\u308b\u640d\u50b7\u84c4\u7a4d\u306b\u3088\u308a\u9032\u884c\u3059\u308b\u3002\u4e00\u822c\u7684\u306b\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u640d\u50b7\u306f\u5727\u7e2e\u5f37\u5ea6\u306a\u3069\u306b\u3088\u308a\u8a55\u4fa1\u3055\u308c\u308b\u304c\u3001\u3088\u308a\u52b9\u679c\u7684\u306a\u7dad\u6301\u7ba1\u7406\u306b\u306f\u5f37\u5ea6\u7279\u6027\u306e\u307f\u3067\u306f\u306a\u304f\u640d\u50b7\u5ea6\u306e\u63a8\u5b9a\u304c\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002\u672c\u5831\u3067\u306f\u3001AE\uff08Acoustic Emission\uff09\u6cd5\u3068\u640d\u50b7\u529b\u5b66\u3092\u7528\u3044\u3066\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u5b9a\u91cf\u7684\u640d\u50b7\u5ea6\u8a55\u4fa1\u3092\u8a66\u307f\u305f\u7d50\u679c\u3092\u5831\u544a\u3059\u308b\u3002\u5b9f\u9a13\u7684\u691c\u8a0e\u306f\u3001\u8fb2\u696d\u6c34\u5229\u65bd\u8a2d\u3088\u308a\u63a1\u53d6\u3057\u305f\u640d\u50b7\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u3092\u7528\u3044\u3066\u884c\u3063\u305f\u3002\u691c\u8a0e\u306e\u7d50\u679c\u3001\u5727\u7e2e\u5fdc\u529b\u4e0b\u3067\u306eAE \u767a\u751f\u6319\u52d5\u306f\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u640d\u50b7\u3068\u5bc6\u63a5\u306b\u95a2\u9023\u3057\u3001AE 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{"creatorNames": [{"creatorName": "Suzuki, Tetsuya"}], "nameIdentifiers": [{"nameIdentifier": "162915", "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": "2019-08-20"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "64(1)_43-47.pdf", "filesize": [{"value": "1.7 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1700000.0, "url": {"label": "64(1)_43-47.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/28340/files/64(1)_43-47.pdf"}, "version_id": "b9350109-8d37-4ff0-9195-186630ed28da"}]}, "item_keyword": {"attribute_name": "\u30ad\u30fc\u30ef\u30fc\u30c9", "attribute_value_mlt": [{"subitem_subject": "acoustic emission", "subitem_subject_scheme": "Other"}, {"subitem_subject": "damage mechanics", "subitem_subject_scheme": "Other"}, {"subitem_subject": "concrete damage", "subitem_subject_scheme": "Other"}, {"subitem_subject": "agricultural infrastructure", "subitem_subject_scheme": "Other"}, {"subitem_subject": "AE", "subitem_subject_scheme": "Other"}, {"subitem_subject": "\u640d\u50b7\u529b\u5b66", "subitem_subject_scheme": "Other"}, {"subitem_subject": "\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u640d\u50b7", "subitem_subject_scheme": "Other"}, {"subitem_subject": "\u8fb2\u696d\u6c34\u5229\u65bd\u8a2d", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "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": "Damage Estimation of Concrete by AE Rate Process Analysis in Core Test", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "Damage Estimation of Concrete by AE Rate Process Analysis in Core Test"}, {"subitem_title": "Damage Estimation of Concrete by AE Rate Process Analysis in Core Test", "subitem_title_language": "en"}]}, "item_type_id": "7", "owner": "1", "path": ["453/456", "485/872/1583/1594"], "permalink_uri": "http://hdl.handle.net/10191/18627", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_value": "2012-07-02"}, "publish_date": "2012-07-02", "publish_status": "0", "recid": "28340", "relation": {}, "relation_version_is_last": true, "title": ["Damage Estimation of Concrete by AE Rate Process Analysis in Core Test"], "weko_shared_id": null}