In this paper, the capabilities of displacement curvature derived from static response data for finding the location and severity of damage in Euler-Bernoulli beams are assessed. Static response of a beam is obtained using the finite element modeling. In order to reduce the number of measured nodal displacements, the beam deflection is fitted through a polynomial function using a limited number...

Cross fertilization between the quantitative nondestructive evaluation (QNDE) community and the diagnostic medicine community in the area of ultrasonics represents an attractive but challengin~ goal. High resolution, real-time ultrasonic imaging is routinely available not only in major medical centers but even in modest community hospitals. However, quantitative ultrasonic evaluation based on t...

Leaky-Rayleigh waves have been studied extensively at liquid-solid interface in the last 30 years [1-4]. Both leaky-Rayleigh and leaky-Lamb waves have found many application in Nondestructive Evaluation, e.g. surface defect characterization, etc [5,6]. Because of the difficulties associated with ultrasonic wave generation and detection in air in the megaHerz region air coupled non destructive e...

The ultrasonic infrared thermal wave method is a new nondestructive testing technique. It is remarkably sensitive and convenient for detection of small vertical cracks, such as fatigue cracks in metals. Pulses of ultrasonic launched by the ultrasonic emitter as heat source are excited into the sample, if there are some cracks in the material, they will be revealed through their heat generation,...