Summary
In order to obtain a physical interpretation of a scanning acoustic microscope measurement, we simulate this experiment by numerical calculations on a supercomputer and visualize the results on a computer graphic workstation. The composite we study is a two-dimensional rectangular beam which has one reinforcement layer located at mid-depth. The Finite Strip Method (FSM) is used to formulate the composite model, and the model analysis and Duhamel integral equation are also used to obtain its dynamic response for the incident wave. Making use of the Visualization Technique for Stress Wave Propagation (VTSWP), we obtain the animated simulation of stress wave propagation in a composite. The effect of gradient distribution on the stiffness in the interphase layer on the wave energy transmission from the matrix to the fiber is also analyzed as an Amplitude Transmission Coefficient (ATC) and as an energy flux calculation taken at arbitrary locations. Results suggest a new technique for measurement of gradients in density and elastic properties.
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© 1992 Springer-Verlag, Berlin Heidelberg
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Kriz, R.D., Oshima, T., Nomachi, S.G. (1992). Scanning Acoustic Microscope Simulation for Determining Interphase Structure. In: Reddy, J.N., Reifsnider, K.L. (eds) Local Mechanics Concepts for Composite Material Systems. IUTAM Symposia. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84792-9_20
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DOI: https://doi.org/10.1007/978-3-642-84792-9_20
Publisher Name: Springer, Berlin, Heidelberg
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