Abstract: Damage can be defined as change introduced into a system that adversely affects its current or future performance. It is a relative measure determined through comparisons between a current state of structure and an initially undamaged state. Damage in a structure can pose serious threat to its structural integrity. Thus Structural Health Monitoring, the process of identifying the damage in a structure and its adverse effects and suggesting a suitable remedy becomes important. This study aims at developing an automatic method for the damage detection in the structures and its analysis. Detection of damages is carried out using image processing techniques and these damages are analyzed using commercial FEA software. Digital image processing involves using computer algorithms to perform image processing on digital images. As a subcategory or field of digital signal processing, digital image processing have many favours over digital image processing. It takes a much range of algorithms to be applied to the input data and it can avoid problems such as noise and signal distortion during processing. Since the images defined over two dimensions analog image processing may be modelled in the form of structural systems.
In the present work, cubes and cylinders are casted, tested and are modeled and CT scanner. Two types of beams were casted. One was a normal healthy plain concrete beam and the other one was a damaged beam in which damage was induced in the form of shear notch crack. These are modeled and analyzed using finite element software ANSYS, which has the required pre- and post- processing options to capture the stresses and displacements developed in the beam.
Keyword: CT scan, concrete structures, x-ray, and ANSYS etc
Title: Damage Detection in Beams by Advanced Radiographic Testing
Author: Ashwin V A, Sahana T S
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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