How can you tell whether a bridge can bear the load of all the vehicles on it?
Yours skin is stretchy – until a point it breaks. But how far can you stretch your skin before it breaks?
In cases where you can’t repeatedly build a million bridges nor stretch your skin a million times to test your hypothesis, Finite Element Method can provide an estimate, based on the material properties (stiffness, shape etc.).
Converting into Weak Form
How it comes about: Finite Deformation
Biological Material Properties: Constitutive Laws