We present numerical investigations on fatigue life analysis of un-re-paired and repaired metallic substrate. Most of the engineering structures fail due to fatigue under dynamic loading. While research is mostly focused in experi-mental fatigue analysis, only few numerical approaches are found in the litera-ture. In this paper, fatigue life analysis of metallic substrate with two types of repairs is presented. One type of repair is with mechanical fasteners, which is most commonly used technique, and the other one is adhesive bonding. 2D nu-merical fatigue analysis is performed on un-repaired, repaired-riveted and re-paired-bonded joints of metallic substrate in FRANC2D/L (Fracture Analysis 2D Layered). Fatigue life curves showed that the repaired-bonded joint has 14 times higher life expectation than un-repaired and repaired-riveted joints.

Peer Reviewed