چكيده به لاتين
In this research, the analysis of adhesive and Single lape joint adhesive mechanical behaviour has been done by tensile test, microindentation and nanoindentation. Indentation is a Non-destructive test that is done in two nano and micro scales on adhesive line in joints edges and is compared with tensile distractive test.
Before any experiments it has been tried that the speciments should be made in a similar manner and same condition, so a fixture was designed and made. Then, the speciments were tested in a similar condition by considering the experimental conditions and tests' types.
In this research the mechanical properties of adhesive joints were developed by using two factors of vacuum degassing and adding the graphen oxide nanoplates.
Then by using the mentioned experiments, the effect of these two factors are analyzed in different weight percentage of nanoplates.
Finally, it is observed that by using the nondestructive tests of micro and nano indentation, the identified developed trend of degassing adhesive joints is estimated by tensile nondestractive tests. But when the degassing factor is added, the trend becomes more complicated. Meanwhile, the whole trend of the changes in nanoindentation and microindentaion conformed in a good way.
In the adhesive joints without nanoplates but along degassing adhesive, after getting the mechanical properties of points in adhesive by indentation, the hardness is increased 50 percent. But the result of tensile tests in this state shows a 16 percent increasment. Also in the state of adhesive joints along degassing and nanoplates, the results of tensile tests are stable but even the propeties decrease is observed in the results of indentaion. Therfore, the results of this resarch on the adhesive joints show that however the degassing factor for the adhesive without nanoplates develops the mechanical properties and the adhesive joints final load. But the degassing factor on adhesive joints that are developed by nanoplates (GOPs) leads to the mechanical properties decrease in
the edge of adhesive joints and the final load doesn't almost change.
