1527 Influence of Loading Rate and Edge Shape on Adhesive Strength of Elastic Bonding Joint
Details
In this study, butt joint specimens which have various interfacial edge angles (notch type:0=45,70,80 degrees, cylinder type:0=90 degrees, protrudent type:0=100, 110, 110 degrees) are used. All specimens are tested after the heat treatment of 50 degrees for 12 hours to get stable results. Adhesive strength increases with increasing interfacial edge angle, and has the peak amount at the edge angle of 100 degrees. This is because that stress concentration at the interfacial edge becomes small for a larger edge angle. On the other hand, the apparent adhesive strength decreases with increasing edge angle for the protrudent type specimen which has no stress concentration. This is because the protrudent area of the specimen does not take so much load. Adhesive strength increases a little with an increase of loading rate.
