Title : AN EFFICIENT STATIC STRAIN ENERGY BASED DAMAGE IDENTIFICATION TECHNIQUE FROM LIMITED STATIC DATA
Authors : Arka Dey, Anubhav Roy, J S Ali, D Bandyopadhyay
Publication : 8 - 10, October 2015
Volume : 2
Pages :
Price : 250
Abstract : Structural damage identification of pin jointed plane frames based on limited static data is simple, low cost and broadly effective in engineering fields. An efficient method based on limited static data is proposed to find damage locations in a structural system. An analysis methodology is adopted in the proposed paper comprising of selection of sensitive elements by forward approach in the first phase. The change of static strain energy (SSE) due to elemental damage is used to establish an indicator for identification of the damage. The SSE is determined using the static analysis information extracted from a finite element model. In order to assess the performance of the proposed method for structural damage detection, an example structure having a number of single damage scenarios are considered. Numerical results demonstrate that the method is able to accurately identify the structural damage. The proposed method seems to be feasible for practical problem as it is able to identify the damage of structure with limited static data measured at selected nodes.