ELASTO-VISCOPLASTIC AND ELASTOPLASTIC LARGE DEFORMATION ANALYSIS OF THIN PLATES AND SHELLS

• Type: Article in International Scientific Journal
• Date: 1982

Authors

Lúcia Maria Dinis (Author) FEUP; OWEN, DRJ (Author) Other

Journal

Title: International Journal for Numerical Methods in Engineering

Vol. 18

Pages: 591-607

ISSN: 0029-5981

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 13 Citations

Other information

Authenticus ID: P-001-XRT

DOI: 10.1002/nme.1620180409

Abstract (EN): To account for plastic deformation in plate and shell structures an elasto-viscoplastic algorithm is considered based on Perzyna'model for material behaviour. This algorithm can be employed to solve for time-dependent elasto-viscoplastic situations and by allowing steady-state conditions to be reached, elasto-plastic problems can also be considered. For the large displacement elasto-viscoplastic analysis of thin shells, an incremental stiffness procedure is employed together with a Lagrangian description of the stress and strain vectors. The Semiloof plate and shell elements are used for finite element space discretization. The procdures developed are apllied to the solution of several numerical examples and the solutions compared with results from other sources where available.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 17