Dimensional stability of CFRP composites for space-based reflectors

In the light of the recent successes in utilizing CFRP composites for fabrication of ultra-lightweight, micron- accuracy reflectors for space telescopes, this paper provides a recent assessment of the main factors influencing dimensional stability of composites. Two recent examples of all-composites reflector designs that demonstrate the validity of the composites choice for this type of space applications are presented.