Analysis of a New Shape of Test Specimen for Block Shear Impact Test

Materials

Andrzej Komorek¹  Marek Rośkowicz²  Jan Godzimirski² 

[1] Department of Aviation, Polish Air Force University, 08-530 Deblin, Poland;Department of Mechatronics and Aviation, Military University of Technology, 00-908 Warszawa, Poland;

关键词: adhesive joint;    impact strength;    pendulum hammer;    numerical analysis;   

DOI  :  10.3390/ma13071693

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown