The dangers of single-lap shear testing in understanding polymer composite welded joints

Single-lap shear (SLS) joints are straightforward to manufacture. This makes them especially attractive for testing polymer composite welded joints. Owing local heating, which is characteristic of welding processes, the production more geometrically intricate (such as double-lap or scarfed joints) bigger end-notched flexure double cantilever beam) typically entails significant complexity in design process. Testing SLS also uncomplicated and, even though, owing mixed-mode loading and uneven stress distribution, it does not provide values, widely acknowledged a valuable tool comparison. Even so, comparing different aspects through their corresponding strength values alone can be deceptive. paper shows that comparison adherend materials, process parameters types joining techniques only meaningful when combined with knowledge on other such joint mesostructure, failure modes mechanics. article part discussion meeting issue ‘A cracking approach inventing new tough materials: fracture stranger than friction’.