Design Manual on Adhesive Bonded Glass Reinforced Plastic Joints

摘要

This manual provides technical information of use to the design engineer in the construction of adhesive bonded glass reinforced plastic (GRP) joints. The characteristics of GRP that have an important bearing on the design of adhesive bonded joints are discussed and the more general joint designs of interest to the engineer working with GRP are illustrated. Numerous examples of typical GRP joints and structural assemblies occurring in service are presented together with representative strength values which were obtained in a general investigation program. In obraining these values, various GRP materials were used as adherends. The adhesive used throughout consisted of a 2-part (resin and hardener) room-temperature setting epoxy resin adhesive which met the requirements of a proposed military specification for adhesives for GRP structural applications. Although the numerical bond strengths reported may be affected by the use of other adhesives and GRP materials, they are considered to represent typical values for general applications. It should be noted that, generally, lower values than those reported may be expected to result if mat materials are used as adherends instead of fiber glass cloth reinforced materials. The numerical values presented with the illustrations can serve as guides to the design engineer, who may find them useful to employ in conjunction with general principles underlying joint and structure design. (Author)