Modeling constrained metal behavior in ceramic/metal laminates

The toughening of brittle materials with a ductile layer greatly enhances the composite fracture toughness. The behavior of a single constrained ligament is what characterize this enhancement. In this article, an approach based on geometrical correction function of necking is proposed to model the bridging ligament response and compared with experimental single Ni-ligament test using digital image correlation (DIC) technique.