Conference proceeding
Boundary Condition Identification for a Grid Model by Experimental and Numerical Dynamic Analysis
STRUCTURAL HEALTH MONITORING AND INSPECTION OF ADVANCED MATERIALS, AEROSPACE, AND CIVIL INFRASTRUCTURE 2015, v 9437, pp 94370J-94370J-11
01 Jan 2015
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
There is a growing need to characterize unknown foundations and assess substructures in existing bridges. It is becoming an important issue for the serviceability and safety of bridges as well as for the possibility of partial reuse of existing infrastructures.
Within this broader contest, this paper investigates the possibility of identifying, locating and quantifying changes of boundary conditions, by leveraging a simply supported grid structure with a composite deck. Multi-reference impact tests are operated for the grid model and modification of one supporting bearing is done by replacing a steel cylindrical roller with a roller of compliant material. Impact based modal analysis provide global modal parameters such as damped natural frequencies, mode shapes and flexibility matrix that are used as indicators of boundary condition changes.
An updating process combining a hybrid optimization algorithm and the finite element software suit ABAQUS is presented in this paper. The updated ABAQUS model of the grid that simulates the supporting bearing with springs is used to detect and quantify the change of the boundary conditions.
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Details
- Title
- Boundary Condition Identification for a Grid Model by Experimental and Numerical Dynamic Analysis
- Creators
- Qiang Mao - Drexel UniversityJohn Devitis - Drexel Univ. (United Kingdom)Matteo Mazzotti - Drexel UniversityIvan Bartoli - Drexel UniversityFranklin Moon - Drexel UniversityKurt Sjoblom - Drexel UniversityEmin Aktan - Drexel University
- Contributors
- P J Shull (Editor)
- Publication Details
- STRUCTURAL HEALTH MONITORING AND INSPECTION OF ADVANCED MATERIALS, AEROSPACE, AND CIVIL INFRASTRUCTURE 2015, v 9437, pp 94370J-94370J-11
- Series
- Proceedings of SPIE
- Publisher
- Spie-Int Soc Optical Engineering
- Number of pages
- 11
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering; [Retired Faculty]
- Web of Science ID
- WOS:000355725000012
- Scopus ID
- 2-s2.0-84943417663
- Other Identifier
- 991019169899504721
UN Sustainable Development Goals (SDGs)
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Civil
- Engineering, Mechanical
- Materials Science, Composites
- Optics