Evaluation of GRP Rod and Rope Materials and Associated End Fittings.
Abstract
An extensive and varied test program was carried out on FRP/epoxy and FRP/polyester rod and rope materials to evaluate tensile strengths, moduli of elasticity, flexibility at low temperatures, effects of simulated Aeolian vibration, and stress-rupture properties at moderate elevated temperatures both with and without high humidity. The effects of elevated temperature on long-term storage capabilities were investigated, and diameter-temperature relationships were established for avoiding buckling due to storage in a coiled condition. The performances of five commercially available end fittings on these materials were examined in terms of the breaking loads attained in tensile tests. Using finite- element analyses, an improved end fitting was developed. With this end fitting the strength of the fitting-specimen system approaches the true tensile strength of the specimen for two of the FRP materials. An experimental stress analysis of the improved fitting was performed. (Author-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1972
- Accession Number
- AD0759931
Entities
People
- Leonard Mordfin
- Nixon Halsey
- Richard A. Mitchell
Organizations
- National Institute of Standards and Technology