{"corpus_id":36363486,"paper_sha":"3f33288b160076fed23acca1ad17126431c36db5","doi":null,"arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":null,"dblp_id":null,"acl_id":null,"title":"Structural Damage Identification Using Modal Curvature Differences","year":2013,"publication_date":null,"venue":"","journal":null,"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":[],"reference_count":10,"citation_count":27,"influential_citation_count":0,"is_open_access":false,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":null,"s2_open_access_landing_url":null,"s2_open_access_license":null,"s2_open_access_status":null,"pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Structural health monitoring is gaining high importance in conjunction with damage assessment and safety evaluation of structures. Vibration based damage identification techniques are global methods that are able to assess the condition of the entire structure at once. These methods are based on the fact that damage in a structure alters dynamic characteristics of the structure. The change is characterized by changes in the eigen parameters that are natural frequency, damping values and the mode shapes associated with each natural frequency. Damage can be identified by comparing the identified dynamic properties of the damage and undamaged structure. Modal‐based damage detection methods, have received considerable attention in civil engineering applications. In the present work, method of modal curvature difference is employed for identifying and locating damage in beam models. Damage is considered as a localized reduction in structural stiffness. From the numerical simulations, it is observed that the absolute changes in modal curvature are localized in the region of damage and hence can be used to detect damage in a structure. The method is found successful for detecting and locating the damage in the beam models with different boundary conditions.","claims":[{"public_id":"cl_f8fa64e4d6c727c445d0025b90143122","status":"active","text":"Absolute changes in modal curvature are localized in the region of damage and can be used to detect damage in a structure.","confidence":0.9,"contributors":[{"id":32,"public_id":"7c402c1b98","public_label":"뀨 (7c402c1b98)","roles":["extraction"],"url":"https://sah.borca.ai/u/7c402c1b98"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_f8fa64e4d6c727c445d0025b90143122"},{"public_id":"cl_d43b2773e3228babce08013ea6f9a803","status":"active","text":"Modal curvature difference method is employed for identifying and locating damage in beam models, where damage is a localized reduction in structural 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