REFLECTION AND TRANSMISSION OF FLEXURAL WAVES AT DISCONTINUITIES (IMPACT, BEAM, STRUCTURES)
Abstract
The behavior of flexural waves in the presence of structural discontinuities such as angle joints is investigated. A model of a rigid joint with a finite mass is developed to study the reflection and transmission of flexural waves. A Fast Fourier Transform (FFT) computer algorithm is used to characterize the dispersive flexural waves. Having first characterized the incident wave it is then propagated through different types of discontinuities namely, a stepped beam, a free end of a beam, a T joint and an angle joint. The effect of joint mass on the flexural wave behavior is studied for the case of a stepped beam and a T beam. Comparison with experimental results are presented for the case of a stepped beam, a free end beam and a T joint.
Degree
Ph.D.
Subject Area
Aerospace materials
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