A numerical-experimental method for damage location based on rotation fields spatial differentiation

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Reis Lopes, HMR (Author) Other; Araujo dos Santos, JVA (Author) Other; Mota Soares, CMM (Author) Other; Miranda Guedes, RJM (Author) FEUP; Pires Vaz, MAP (Author) FEUP

Journal

Title: Computers and Structures

Vol. 89

Pages: 1754-1770

ISSN: 0045-7949

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 22 Citations

Scopus - 28 Citations

Scientific classification

FOS: Engineering and technology > Civil engineering

Other information

Authenticus ID: P-002-M4V

DOI: 10.1016/j.compstruc.2011.03.014

Abstract (EN): This paper presents a structural damage location method that decreases the number of spatial differentiations needed to compute modal curvature fields. The method is numerically and experimentally applied to isotropic and laminated rectangular plates, respectively. A speckle shear interferometer is used to measure the rotation fields of the laminated plate, while the isotropic plate is analysed by finite elements. It was found that the Gaussian differentiation is the most suited technique to compute the curvature fields. It is also demonstrated the superior performance of the curvature method using measured rotation fields instead of measured displacement fields.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 17