Dimensionally stable laminates under thermal loading and their applications

Author:

Symonov Volodymyr

Abstract

There exist many types of structures, which are required to have stable dimensions within a wide range of temperatures. The specific nature of composites allows finding special conditions when a laminate stacking sequence can provide zero thermal expansion coefficients in one or more directions. This allows the structure being designed to have the same dimensions in a wide range of temperatures. This work is aimed to find mathematical conditions, which guarantee in-plane zero CTE at least in one direction. As an application of thermally stable laminates a rotating disk is chosen. The mathematical model for such a disk is presented. Among investigated materials there was not found any of them, which can be used to layup a laminate with zero CTEs in two directions. However, all investigated materials can be used to layup many laminates with zero CTE in one or another direction. Moreover, it was discovered a laminate might have a zero CTE, if the lamina has zero or negative CTE at least in one direction. It was found the stresses, which appear in a laminated disk caused by centripetal forces, are insignificantly low in comparison to the thermal ones within the investigated ranges of angular velocity and temperature.

Publisher

EDP Sciences

Subject

General Medicine

Reference8 articles.

1. Datashvili L., Nathrath N., Lang M., at el., New concepts and reflecting materials for space borne large deployable reflector antennas, Technical University of Munich, Germany (2014).

2. Gröbelbauer H. P., Heer M., Development of a Dimensionally Stable Lightweight Structure for the LISA Pathfinder Science Module (CEAS, Berlin, Germany, 2007).

3. Cherniavsky G., Romanov A. A., Tulmenkov V. A., at el.,Design and manufacturing of composite frame elements of optical-electronic unit of an automated space satellite (XX Intern. Sci. and Tech. Conf.: Struct. and Proc. for Manuf. Products from Nonmetal. Mater., Obninsk, Russia, 2013), [in Russian].

4. Development of dimensionally stable structures of multilayer pipelines and cylindrical pressure vessels from carbon fiber reinforced plastic

5. Bringhenti C., Barbosa J. R., Effects of Turbine Tip Clearance on Gas Turbine Performance (ASME Turbo Expo, Berlin, Germany, 2008).

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