Thermal Expansion Properties of Composite Materials.
Abstract
Thermal expansion data for several composite materials, including generic epoxy resins, various graphite, boron, and glass fibers, and unidirectional and woven fabric composites in an epoxy matrix, have been compiled into one comprehensive report. A discussion of the design, material, environmental, and fabrication properties affecting thermal expansion behavior is presented. Test methods and their accuracy are discussed. Analytical approaches to predict laminate coefficients of thermal expansion (CTE) based on lamination theory and micromechanics are also included. For space applications, a near-zero CTE is often highly desirable to maintain the thermal dimensional stability of a structure on-orbit. Although this is easily achievable with composite materials, it is often at the expense of some structural efficiency. A discussion is included of methods of tuning a laminate to obtain a near-zero CTE. Related references that describe these data more extensively are included. (MM)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1981
- Accession Number
- ADA306191
Entities
People
- George B. Mackey
- Murat H. Kural
- Robert R. Johnson III
Organizations
- Lockheed Martin Missiles and Space