Share Email Print
cover

Proceedings Paper

Optimal placement of smart sensors in CFS structures under blast loading using hybrid FEM-GA approach
Author(s): Hamid Reza Vosoughifar; Seyed Kazem Sadat Shokouhi; Azam Dolatshah; Yousef Rahnavard; Hassan Atapour
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Blasts can produce, in a very short time, an overload much greater than the design load of a building. The blast explosion nearby or within structures causes catastrophic damage to the building both externally and internally. This study intends to model a Cold-Formed Steel (CFS) building using Finite Element Method (FEM) in which material properties of the model are defined according to results of performed laboratory tests. Then accelerograph record of a standard blast was applied to the Finite Element (FE) model. Furthermore, various Optimal Sensor Placement (OSP) algorithms were used and Genetic Algorithm (GA) was selected to act as the solution of the optimization formulation in selection of the best sensor placement according to the blast loading response of the system. In this research a novel numerical algorithm was proposed for OSP procedure which utilizes the exact value of the structural response under blast excitation. Results show that with a proper OSP method for Structural Health Monitoring (SHM) can detect the weak points of CFS structures in different parts efficiently.

Paper Details

Date Published: 19 April 2013
PDF: 13 pages
Proc. SPIE 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, 869242 (19 April 2013); doi: 10.1117/12.2012174
Show Author Affiliations
Hamid Reza Vosoughifar, Islamic Azad Univ. (Iran, Islamic Republic of)
Seyed Kazem Sadat Shokouhi, Islamic Azad Univ. (Iran, Islamic Republic of)
Azam Dolatshah, Islamic Azad Univ. (Iran, Islamic Republic of)
Yousef Rahnavard, Technische Univ. Braunschweig (Germany)
Hassan Atapour, California State Univ. (United States)


Published in SPIE Proceedings Vol. 8692:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013
Jerome Peter Lynch; Chung-Bang Yun; Kon-Well Wang, Editor(s)

© SPIE. Terms of Use
Back to Top