Nonlinear Finite Elements [Slides]
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
The presentation begins with why we need nonlinear finite elements: Real systems rarely (if ever) behave in a linear fashion during real deformation (Nonlinear material response (plasticity, nonlinear elasticity, . . . ), Contact, Multi-phase/physics interactions); Our boundary conditions may be nonlinear as well; and, Large deformation/rotation is inherently nonlinear. The remainder of topics include: 1D Motivation; Initial de nitions and background; Balance Equations; Weak form and Galerkin form; Newton-Raphson solution of nonlinear equations; and, Alternatives to Newton-Raphson
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- 89233218CNA000001
- OSTI ID:
- 1660567
- Report Number(s):
- LA-UR--20-27066
- Country of Publication:
- United States
- Language:
- English
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