## Bridging proper orthogonal decomposition methods and augmented Newton-Krylov algorithms: an adaptive model order reduction for highly nonlinear mechanical problems.(English)Zbl 1225.74092

Summary: This article describes a bridge between POD-based model order reduction techniques and the classical Newton/Krylov solvers. This bridge is used to derive an efficient algorithm to correct, “on-the-fly”, the reduced order modelling of highly nonlinear problems undergoing strong topological changes. Damage initiation problems tackled via a corrected hyperreduction method are used as an example. It is shown that the relevancy of reduced order model can be significantly improved with reasonable additional costs when using this algorithm, even when strong topological changes are involved.

### MSC:

 74S05 Finite element methods applied to problems in solid mechanics 74S20 Finite difference methods applied to problems in solid mechanics 74R20 Anelastic fracture and damage 74K99 Thin bodies, structures
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### References:

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