A new volumetric and shear locking-free 3D enhanced strain element

• Type: Article in International Scientific Journal
• Date: 2003

Authors

de sousa, rja (Author) Other; jorge, rmn (Author) FEUP; valente, raf (Author) Other; de sa, jmac (Author) FEUP

Journal

Title: Engineering Computations

Vol. 20 No. 4

Pages: 896-925

ISSN: 0264-4401

Publisher: Emerald

Indexing

ISI Web of Knowledge - 69 Citations

Scopus - 86 Citations

Scientific classification

FOS: Natural sciences > Computer and information sciences

Other information

Authenticus ID: P-000-JHT

DOI: 10.1108/02644400310502036

Abstract (EN): This paper focuses on the development of a new class of eight-node solid finite elements, suitable for the treatment of volumetric and transverse shear locking problems. Doing so, the proposed elements can be used efficiently for 3D and thin shell applications. The starting point of the work relies on the analysis of the subspace of incompressible deformations associated with the standard (displacement-based) fully integrated and reduced integrated hexahedral elements. Prediction capabilities for both formulations are defined related to nearly-incompressible problems and an enhanced strain approach is developed to improve the performance of the earlier formulation in this case. With the insight into volumetric locking gained and benefiting from a recently proposed enhanced transverse shear strain procedure for shell applications, a new element conjugating both the capabilities of efficient solid and shell formulations is obtained. Numerical results attest the robustness and efficiency of the proposed approach, when compared to solid and shell elements well-established in the literature.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 30