Optimal placement of smart sensors in CFS structures under blast loading using hybrid FEM-GA approach

Hamid Reza Vosoughifar; Seyed Kazem Sadat Shokouhi; Azam Dolatshah; Yousef Rahnavard; Hassan Atapour

doi:10.1117/12.2012174

19 April 2013 Optimal placement of smart sensors in CFS structures under blast loading using hybrid FEM-GA approach

Hamid Reza Vosoughifar, Seyed Kazem Sadat Shokouhi, Azam Dolatshah, Yousef Rahnavard, Hassan Atapour

Proceedings Volume 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013; 869242 (2013) https://doi.org/10.1117/12.2012174
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

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.

Citation Download Citation

Hamid Reza Vosoughifar, Seyed Kazem Sadat Shokouhi, Azam Dolatshah, Yousef Rahnavard, and Hassan Atapour "Optimal placement of smart sensors in CFS structures under blast loading using hybrid FEM-GA approach", Proc. SPIE 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, 869242 (19 April 2013); https://doi.org/10.1117/12.2012174

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available