Nonlinear dynamic analysis considering explicit and implicit time marching techniques with adaptive time integration parameters.

Soares, Delfim

In this work, adaptive explicit and implicit time marching techniques are proposed to analyze nonlinear dynamic models. In these time marching adaptive procedures, the adopted time integration parameters modify themselves along the solution process, in accordance with the varying properties and results of the model. Thus, the time integrators are locally evaluated, assuming different values along the spatial and temporal discretizations, enabling more accurate and efficient solution techniques. Numerical results are presented along the manuscript, illustrating the good performance of the proposed space/time adaptive explicit and implicit time marching strategies for nonlinear analyses.

NONLINEAR dynamical systems; FINITE element method; NONLINEAR systems; NONLINEAR analysis; NUMERICAL analysis

Acta Mechanica, 2018, Vol 229, Issue 5, p2097

0001-5970

Academic Journal

10.1007/s00707-017-2104-0