{"created":"2023-06-20T15:14:51.998223+00:00","id":44875,"links":{},"metadata":{"_buckets":{"deposit":"6bddc32f-b6dd-41b3-bb28-e6d3490515a0"},"_deposit":{"created_by":1,"id":"44875","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"44875"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00044875","sets":["1887:1893","1896:1898:1913:1917"]},"author_link":["471705","471704","471706","471707"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Acoustic Fatigue Life Prediction of 2024-T3 Aluminum Alloy Panels"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1980-07","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"11","bibliographicVolumeNumber":"620","bibliographic_titles":[{"bibliographic_title":"航空宇宙技術研究所報告"},{"bibliographic_title":"Technical Report of National Aerospace Laboratory TR-620","bibliographic_titleLang":"en"}]}]},"item_3_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"2024-T3アルミニウム合金薄板構造の音響疲労寿命推定を既存のS-N曲線を基にして応力のピーク分布を仮定して行い,実験結果との比較検討を行った。ピーク分布としては①Rayleigh②Huston-Skopinski③数値計算④実験の4種を考慮した。寿命予測計算には修正Miner則を用いた。実験結果を安全側に予測するという立場からはRayleigh分布を仮定してKt=4とするのが一番使いやすく,精度の上でも十分である。他のピーク分布を使う方がよいという積極的な理由は見当らない。今回の実験と部分構造模型の疲労試験結果を分析すると,累積損傷が応力に依存することが明らかとなる。それ故この累積損傷と応力ピーク値との間に近似式を当てはめ,それから得られる寿命推定曲線を,アルミ合金材薄板構造の音響疲労寿命初期推定資料とすることを提案する。","subitem_description_type":"Abstract"}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"This report investigates the acoustic fatigue prediction of 2024-T3 aluminum panel structures using the known S-N curves under the periodic bending load and assuming various peak stress distributions. The peak stress distributions in question are those by Rayleigh, Huston-Skopinski, Simulation and Experiment. The acoustic fatigue life estimate utilizes the modified Miner rule. From the various estimate values of fatigue life the proper method can be selected by simply judging closeness of the numbers to the present experimental results. This numerical check shows that the method using the S-N curve with Kt=4 and Rayleigh peak distribution is indeed adequate to predict the acoustic fatigue of the present experiments in the conservative side, and that no rationale to try other peak stress distribution can be found. As the results from the present experiments and 9-bay structural models show the trend that the cummulative damage depends on the stress level, a semiempirical curve is fitted to the damageversus-stress relation. The report concludes with the proposal that the optimum fatigue life estimate curve based on the stress-dependent cummulative damage can be used as a design guide for the thin 2024-T3 aluminum alloy panel structures.","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: NALTR0620000","subitem_description_type":"Other"}]},"item_3_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: NAL TR-620","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"航空宇宙技術研究所"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"National Aerospace Laboratory(NAL)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0389-4010","subitem_source_identifier_type":"ISSN"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"航空宇宙技術研究所機体第二部"},{"subitem_text_value":"航空宇宙技術研究所機体第二部"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Second Airframe Division, National Aerospace Laboratory(NAL)"},{"subitem_text_language":"en","subitem_text_value":"Second Airframe Division, National Aerospace Laboratory(NAL)"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"佐野, 政明"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"藤森, 義典"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SANO, Masaaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"FUJIMORI, Yoshinori","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-29"}],"displaytype":"detail","filename":"naltr00620.pdf","filesize":[{"value":"739.9 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"naltr00620.pdf","url":"https://jaxa.repo.nii.ac.jp/record/44875/files/naltr00620.pdf"},"version_id":"66449a90-57ff-4d35-b19f-6c08122929ac"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"2024-T3アルミニウム合金薄板構造の音響疲労寿命初期推定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"2024-T3アルミニウム合金薄板構造の音響疲労寿命初期推定"}]},"item_type_id":"3","owner":"1","path":["1893","1917"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"44875","relation_version_is_last":true,"title":["2024-T3アルミニウム合金薄板構造の音響疲労寿命初期推定"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T21:49:18.655257+00:00"}