For more detail this asset from the Unity Asset Store: Click Here
This is a paid asset, but now you can download Truss Physics for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Truss Physics v1.0.2 Beta
“If possible, please buy the package to support the developer”
Unity 5 compatible
Truss Physics is a high quality soft body simulation for a wide range of materials from jelly-like and springy to almost rigid but deformable.
Features:
+ Robust soft body simulation.
+ Breakable soft body constraints.
+ Interaction with rigid bodies.
+ Seamless Unity integration.
+ Tutorials and samples.
Visit project site for more information and evaluation copy.
Beta version:
The asset is still in development. Any bug reports and feature requests are welcome.