Efficient modelling of delamination growth using adaptive isogeometric continuum shell elements
Artikel i vetenskaplig tidskrift, 2019

The computational efficiency of CAE tools for analysing failure progression in large layered composites is key. In particular, efficient approximation and solution methods for delamination modelling are crucial to meet today’s requirements on virtual development lead times. For that purpose, we present here an adaptive continuum shell element based on the isogeometric analysis framework, suitable for the modelling of arbitrary delamination growth. To achieve an efficient procedure, we utilise that, in isogeometric analysis, the continuity of the approximation field easily can be adapted via so-called knot insertion. As a result, the current continuum shell provides a basis for an accurate but also computationally efficient prediction of delamination growth in laminated composites. Results show that the adaptive modelling framework works well and that, in comparison to a fully resolved model, the adaptive approach gives significant time savings even for simple analyses where major parts of the domain exhibit delamination growth.

Delamination

Isogeometric analysis

Adaptivity

Stress reconstruction

Continuum shell formulation

Författare

Camiel Adams

Technische Universiteit Eindhoven

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Martin Fagerström

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Joris Remmers

Technische Universiteit Eindhoven

Computational Mechanics

0178-7675 (ISSN) 1432-0924 (eISSN)

Vol. in Press

Ämneskategorier

Beräkningsmatematik

Inbäddad systemteknik

Datorsystem

DOI

10.1007/s00466-019-01754-8

Mer information

Senast uppdaterat

2019-11-14