Share Email Print

Optical Engineering

Composite mirror surface deformation due to lay-up sequences within quasi-isotropic laminates
Author(s): Kyung-Pyo Kim; Richard D. Hale
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We address surface accuracy issues associated with the thermal stability of continuous-fiber-reinforced quasi-isotropic composite mirrors. Thermally induced surface deformations in /n quasi-isotropic laminates, where n=3, 4, and 6, are numerically and experimentally investigated for the effects of stacking sequence and surface resin layers. Symmetric laminates and asymmetric laminates caused by the presence of surface resin layers for fiber print-through (FPT) mitigation are considered in numerical models to evaluate the surface characteristics due to thermal variance of T=16.6 °C (30 °F). Numerical results from finite element analyses reveal that the presence of an out-of-plane sinusoidal surface deformation pattern is inevitable in quasi-isotropic laminates, and the surface patterns are associated with stacking sequences within the laminates. Analyses assuming the thermal variance reveal that none of the /n laminates meet the diffraction-limited surface deformation requirement (

Paper Details

Date Published: 1 June 2010
PDF: 10 pages
Opt. Eng. 49(6) 063002 doi: 10.1117/1.3456694
Published in: Optical Engineering Volume 49, Issue 6
Show Author Affiliations
Kyung-Pyo Kim, The Univ. of Kansas (United States)
Richard D. Hale, The Univ. of Kansas (United States)

© SPIE. Terms of Use
Back to Top