Abstract
This paper reports and discusses an experimental comparison of metal specimens for impact strength research of adhesive connections with different shapes of the upper element. The top element of the specimen of the cuboid shape was replaced with a disc-shaped element. The experimental investigations were supplemented with dynamic numerical calculations of the tested cases. The results of the experimental studies indicate that the material applied to the produce of the top element of the block specimen deformed plastically as a result of applying the load, which further hinders the interpretation of already problematic investigation results. The numerical analysis confirms exceeding the yield point, by stresses, of the material that the specimen elements were made of. Modified specimens were characterized by only little greater repeatability of test results and greater impact strength caused by plastic deformations of the cylindrical specimen element.
Highlights
In addition to static and fatigue loads, adhesive connections in currently designed and used constructions can be impact-loaded
While the matter of the static strength of adhesive bonds is quite well known, the problem of the impact strength of adhesive joints has been the subject of very few pieces of experimental research or theoretical deliberations
This is the result of insufficient assessment of test results, as well as of the lack of exact mathematical relationships that make possible an analytical determination of the impact strength of adhesive connections, based on experimental investigation
Summary
In addition to static and fatigue loads, adhesive connections in currently designed and used constructions can be impact-loaded. While the matter of the static strength of adhesive bonds is quite well known, the problem of the impact strength of adhesive joints has been the subject of very few pieces of experimental research or theoretical deliberations. This is the result of insufficient assessment of test results, as well as of the lack of exact mathematical relationships that make possible an analytical determination of the impact strength of adhesive connections, based on experimental investigation. The results of quasi-static and impact shear tests of tubular overlap adhesive connections prove that the shear strength increases as the strain rate rises [12].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
