The Dynamic Characteristic Analysis and Damages Testing of Cracked Steel Bar with Tensile Forces
The constructed Structures exist lots of damages existing, due to thousands of reasons. If we could find out the cracks and the forces in the members, we would prevent that the whole structure members fractured and destroyed effectively. The dynamic characteristics of frequencies and modeshapes were analyzed bye the finite element approach and verified by model testing in this research. These dynamic characteristics have closed relations with crack locations, depths, and forces in the members. By these relations, we could identify the crack locations, depths and forces inside the member. These relationships were used to learning and training by Artificial Neural Networks to identify the crack locations, depths, and forces inside the members. According to the results of this research, we could identify the crack locations, depths, and forces inside, and accurately the detecting measure can be setup.
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