A new one‐point quadrature enhanced assumed strain (EAS) solid‐shell element with multiple integration points along thickness—part II: nonlinear applications

By R. J. Alves de Sousa, Rui P. R. Cardoso, R. Fontes Valente, Jeong Whan Yoon, J. Gracio, R. N. Natal Jorge. 2006

156 citations recorded by the source corpus.

In this work the recently proposed Reduced Enhanced Solid‐Shell (RESS) finite element, based on the enhanced assumed strain (EAS) method and a one‐point quadrature integration scheme, is extended in order to account for large deformation elastoplastic thin‐shell problems. One of the main features of this finite element consists in its minimal number of enhancing parameters (one), sufficient to circumvent the well‐known Poisson and volumetric locking phenomena, leading to a computationally efficient performance when compared to other 3D or solid‐shell enhanced strain elements. Furthermore, the employed numerical integration accounts for an arbitrary number of integration points through the thickness direction within a single layer of elements. The EAS formulation comprises an additive split of the Green–Lagrange material strain tensor, making the inclusion of nonlinear kinematics a straightforward task. A corotational coordinate system is used to integrate the constitutive law and to ensure incremental objectivity. A physical stabilization procedure is implemented in order to correct the element's rank deficiencies. A variety of shell‐type numerical benchmarks including plasticity, large deformations and contact are carried out, and good results are obtained when compared to well‐established formulations in the literature. Copyright © 2006 John Wiley & Sons, Ltd.

Subfields: Biomedical Engineering, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/89b05077ee2861f977a43bee640187498faebace

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In Biomedical Engineering

1. Stefanie Reese
2. M. Schwarze
3. D. Magisano
4. L. Leonetti
5. Giovanni Garcea

In Mechanics of Materials

1. Stefanie Reese
2. M. Schwarze
3. L. Leonetti
4. D. Magisano
5. Giovanni Garcea

Citations in the corpus

• A large deformation solid‐shell concept based on reduced integration with hourglass stabilization (2007, background): “Only a few of the mentioned large strain solid-shell formulations are based on the concept of reduced integration with hourglass stabilization [6, 9, 29, 34].”