Transverse thermal expansion of carbon fiber/epoxy matrix compositesThermal expansion coefficients and moduli of elasticity have been determined experimentally for a series of epoxy-matrix composites reinforced with carbon and Kevlar fibers. It is found that in the transverse direction the difference between the properties of the fiber and the matrix is not as pronounced as in the longitudinal direction, where the composite properties are fiber-dominated. Therefore, the pattern of fiber packing tends to affect transverse composite properties. The transverse properties of the composites tested are examined from the standpoint of the concept of homogeneity defined as the variation of packing (or lack thereof) throughout a sample.
Document ID
19840066265
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Helmer, J. F. (General Dynamics Corp. Fort Worth, TX; Rensselaer Polytechnic Institute, Troy, NY, United States)
Diefendorf, R. J. (Rensselaer Polytechnic Institute, Troy, NY, United States)