Influence of surface preparation in composite bonded joints
Piotr Synaszko, Mateusz Łukasik, Paweł Orzechowski, Janusz Lisiecki, Dominik Nowakowski
Quarterly No. 4, 2016 pages 234-237
DOI:
keywords: composites, adhesive joints, surface preparation
abstract One of the basic methods for joining composites are adhesive joints. In contrast to traditional methods used in connecting metal structures (bolting, riveting), bonding ensures uniform stress distribution. Bonding requires appropriate technological conditions and proper surface preparation. In the case of bonding composites, surface preparation methods are based on mechanical processing. The authors conducted a study to compare the different methods of surface preparation used in the adhesive bonding of composites. As a parameter defining the efficiency of the method, stress failure in a tensile test was used. Specimens were made based on the ASTM-D1002 standard using a carbon-epoxy prepreg and DP-490 3M adhesive. The article contains the results of tensile tests for three types of surface treatment.