Investigation of the Fracture Behavior of Steel/Steel Laminates in Crack Divider Orientation

Authors: MEHMET ŞİMŞİR, TAYFUR ÖZTÜRK, MUSTAFA DORUK

Abstract: A study is carried out to examine the applicability of J_{IC} testing for laminates that behave in an elastic-plastic manner. Laminates made up of layers of low-C and medium-C steels are tested in crack divider orientation with a single specimen technique using a partially unloading compliance method. The study shows that the method can be applied for laminates for comparative purposes, but the values of J_{IC} derived are not as reliable as those in monolithic materials. This is mainly due to difficulties faced with the estimation of crack growth data that are not accurate enough due to composite nature of the samples.

Keywords: Fracture toughness, J_{IC} testing, Partially unloading compliance technique, Steel laminates

Full Text: PDF