Evaluating the severity of transverse cracks in beam-like structures by using an energy loss method

Over functioning time, structures can be affected by multiple types of damages caused fatigue, improper production methods, or exceeding loads. The current paper describes a method for evaluating the severity transverse cracks that are present in beam-like based on changes natural frequencies. Because presence damage has negative impact energy beam store section, it is possible to find influence crack any other position along beam, considering stored normalized location. technique mathematical relationship provides exact solution frequency bending vibration modes, two terms. first term related tensile and second considers increase flexibility due cracks, this reason, assessment performed stages; first, location found then an its performed. In study, aim test developed estimating different sections lengths beams.