Non-linear Finite Element Analysis for Practical Application

Artikel i vetenskaplig tidskrift, 2009

Despite the availability of sophisticated non-linear finite element (FE) analysis software, linearelastic analysis is still the standard tool to model the response of reinforced concrete structures in practice. To allow for more frequent applications of non-linear FE analysis in practice, computationally fast, simple and reliable methods are needed. For non-linear FE analysis this article gives an overview and evaluation of ideals, approaches and methods, which are especially suited to application in practice. This includes simplified element formulations, non-linear constitutive formulations on the sectional and element level, and ways to treat numerous load combinations with non-linear FE analysis.