Nondestructive Magnetic Monitoring of Grinding Damage

Nondestructive Evaluation of Damage in Beams Using Displacement Curvature

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...

Nondestructive Evaluation of Graphite/Epoxy Composite Damage

Ultrasonic and acoustic emission techniques were used to monitor and evaluate material damage in a graphite/epoxy laminate containing a machined hole as an initial flaw and subjected to fully reversed spectrum fatigue loading at room temperature. It was found that the flaw growth progressed radially around the initial hole at a uniform rate during cycling at the lower stress levels. At the high...

Nondestructive Evaluation for Health Monitoring and Diagnostics

Much of our expectation of the future is based on a linear extrapolation from the present. However history tells us time and again that it’s the nonlinearities that make the big differences in predicting the future. New technologies like smart materials, MEMS, micro adaptive flow control, and nanotechnology all have the potential to have a big influence on the future of aeronautics. A forward-l...

Monitoring fatigue damage in materials using magnetic measurement techniques

nondestructive evaluation of damage in beams using displacement curvature

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...