Fracture, and particularly brittle fracture, is a good example of an instability. For a homogeneous solid, subjected to a uniform stress field, a crack may appear anywhere in the structure once the threshold stress is reached. However, once a crack has been nucleated in some place, further damage in the solid will in most cases propagate from the initial crack, and not somewhere else in the solid. In this sense fracture is an unstable process. This property makes the process extremely sensitive to any heterogeneity present in the medium, which selects the location of the first crack...
Fracture, and particularly brittle fracture, is a good example of an instability. For a homogeneous solid, subjected to a uniform stress field, a crac...
Before Luke can be a Jedi, he needs to learn from Yoda This fully-illustrated level 2 reader retells the classic scenes from The Empire Strikes Back where Luke learns to use the force for the very first time.
Before Luke can be a Jedi, he needs to learn from Yoda This fully-illustrated level 2 reader retells the classic scenes from The Empire Strikes Back ...
