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An Efficient Damage Identification Method for Simply Supported Beams Based on Strain Energy Information Entropy
Joint Authors
Xiang, Chang-Sheng
Li, Ling-Yun
Zhou, Yu
Dang, Cong
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-07
Country of Publication
Egypt
No. of Pages
11
Abstract EN
Concrete simply supported beams are widely used in small- and medium-sized bridges.
Hinged slabs and joints are damaged in service easily, as they are the main load-carrying members of bridge.
In this paper, using the high sensitivity and strong antinoise characteristics of strain energy to damage, a strain energy information entropy index is proposed for identifying local damage in hinge joints and hinged slabs.
Moreover, a new damage index of the local strain energy entropy function is constructed according to the strain energy of a hinge joint element and its surrounding elements.
A simply supported beam model is established to verify the effectiveness of the proposed index.
The numerical simulation results show that the proposed damage index of hinge joints can accurately locate and quantify the degree of damage of single-hinge joints and multihinge joints.
The improved modal strain energy information entropy index is sensitive to single-hinge slab damage and can accurately identify damage with noise levels of 5% and 10%.
American Psychological Association (APA)
Xiang, Chang-Sheng& Li, Ling-Yun& Zhou, Yu& Dang, Cong. 2020. An Efficient Damage Identification Method for Simply Supported Beams Based on Strain Energy Information Entropy. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1129575
Modern Language Association (MLA)
Xiang, Chang-Sheng…[et al.]. An Efficient Damage Identification Method for Simply Supported Beams Based on Strain Energy Information Entropy. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1129575
American Medical Association (AMA)
Xiang, Chang-Sheng& Li, Ling-Yun& Zhou, Yu& Dang, Cong. An Efficient Damage Identification Method for Simply Supported Beams Based on Strain Energy Information Entropy. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1129575
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1129575