Nonlinear finite elements/Homework 6/Solutions/Problem 1/Part 2

Problem 1: Part 2
Why is the continuum-based approach preferred in nonlinear finite element analysis?

The continuum-based approach is preferred because the governing equations for nonlinear beams and shells are very complex and features such as variations in thickness, junctions, and stiffeners are difficult to incorporate. It is also easier to model complex constitutive models (plasticity, anisotropy) with the continuum-based approach.

Also, codes that use this approach are generally quite robust and accurate.