Paper Title:
Acoustic Measurements to Proof High-Strength Structures and Joints
  Abstract

Due to increased product requirements, usual conditions for materials cannot be applied anymore. To reduce energy consumption, lightweight constructions are demanded but they cannot stand necessary mechanical stress. Therefore, local reinforced elements are applied for instance. According to actual research in material sciences, it is prerequisite to verify the position of this strengthening. Various physical principles can be used for non-destructive testing of this effect. In this article, an approach based on acoustic signals is presented. On the one hand a strategy could be to do comparative studies between nominal and sample and on the other to predetermine the place just by acoustic parameters like eigenmodes. In preliminary test, vibration characteristics of these innovative materials (e.g. bake-hardening plate and sandwich structure) are determined and reveal capabilities for acoustic methodologies. So, this approach could be a promising tool to localize reinforced elements.

  Info
Periodical
Edited by
Heinz Palkowski and Kai-Michael Rudolph
Pages
451-456
DOI
10.4028/www.scientific.net/AMR.137.451
Citation
A. Lohrengel, D. Thoden, G. Schäfer, "Acoustic Measurements to Proof High-Strength Structures and Joints", Advanced Materials Research, Vol. 137, pp. 451-456, 2010
Online since
October 2010
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