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Proceedings Paper

Simulation and experiment on the thermal deformation of composite tubes
Author(s): Daniel Holstein; Petra Aswendt; Roland Hoefling; Claus-Dieter Schmidt; Werner P. O. Jueptner
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Paper Abstract

Deformations of thermally loaded composite tubes are studied by means of Finite-Element-Analyses and interferometric measurement techniques. Of particular interest are the differences in the deformation behavior of the two investigated anisotropic tubes in comparison to isotropic tubes. Two characteristic bending phenomena appear at the frontal and the shell surface of the tubes, owing to the three-dimensional stress state near the edges. These simulated phenomena are experimentally verified by means of holographic as well as speckle interferometry. The results of this work show that in most cases the implemented micro- and macro- mechanics of the used Finite-Element models enable to properly predict the thermal deformation of composite tubes. Nevertheless, especially for very thin tubes, significant discrepancies between the simulated and the measured deformations could appear, due to the disregarding of the complex microscopic structure in the simulation. Thus, experimental verifications of the simulated thermal deformation of composite tubes are necessary. Generally, these verification measurements should be performed with fieldwise experimental methods, like the presented interferometric measurement techniques.

Paper Details

Date Published: 6 July 1998
PDF: 10 pages
Proc. SPIE 3479, Laser Interferometry IX: Applications, (6 July 1998); doi: 10.1117/12.316457
Show Author Affiliations
Daniel Holstein, Bremen Institute of Applied Beam Technology (Germany)
Petra Aswendt, Fraunhofer Institute for Machine Tools and Forming Technology (Germany)
Roland Hoefling, Fraunhofer Institute for Machine Tools and Forming Technology (Germany)
Claus-Dieter Schmidt, Fraunhofer Institute for Machine Tools and Forming Technology (Germany)
Werner P. O. Jueptner, Bremen Institute of Applied Beam Technology (Germany)


Published in SPIE Proceedings Vol. 3479:
Laser Interferometry IX: Applications
Ryszard J. Pryputniewicz; Gordon M. Brown; Werner P. O. Jueptner, Editor(s)

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