Journal
COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING
Volume 37, Issue 2, Pages 185-203Publisher
WILEY
DOI: 10.1111/mice.12708
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This article presents a method that utilizes computer vision techniques and geometric analyses to enable a finite element model to remesh itself for updating geometric changes caused by structural damages. Experiments on a plate and a C-shaped steel crossbeam of a bridge demonstrate the effectiveness of the proposed method and algorithms in automatically assessing structural capacity.
This article presents a method that enables a finite element (FE) model to remesh itself for updating the geometric changes caused by structural damages, using computer vision (CV) techniques and geometric analyses. Currently, there is no mature automatic approach to utilize the information of structural damage detection (SDD) for structural state awareness. Thus, the purpose of this study is to automate the pipeline from the accomplishment of SDD to numerical analyses for fast structural capacity evaluation. CV techniques are used to determine the shapes and dimensions of both structural components and damages. Geometric analyses are used to develop the algorithms for automatically deleting, generating, and splitting the elements of FE models for updating the geometric changes. Experiments are performed on a plate and a C-shaped steel crossbeam of a bridge to demonstrate the effectiveness of the proposed method and algorithms.
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