✦ LIBER ✦

Refined hybrid degenerated shell element for geometrically non-linear analysis

✍ Scribed by Chen Wanji; Zheng Shijie

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 288 KB
Volume: 41
Category: Article
ISSN: 0029-5981
DOI: 10.1002/(sici)1097-0207(19980415)41:7<1195::aid-nme316>3.0.co;2-f

No coin nor oath required. For personal study only.

✦ Synopsis

Based on a variational principle with relaxed inter-element continuity requirements, a refined hybrid quadrilateral degenerated shell element GNRH6, which is a non-conforming model with six internal displacements, is proposed for the geometrically non-linear analysis. The orthogonal approach and non-conforming modes are incorporated into the geometrically non-linear formulation. Numerical results show that the orthogonal approach can improve computational efficiency while the non-conforming modes can eliminate the shear/membrane locking phenomenon and improve the accuracy.

1998 John Wiley & Sons, Ltd.

📜 SIMILAR VOLUMES

Variational principles and refined non-c

Variational principles and refined non-conforming element methods for geometrically non-linear analysis

✍ WANJI, CHEN 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 133 KB 👁 1 views

New variational principles with relaxed interelement continuity requirement are developed for geometrically non-linear analysis, and the re®ned non-conforming element methods are given. A simple modi®cation of the constant strain can be introduced into the formulation, and the remaining procedures a

Refined non-conforming triangular elemen

Refined non-conforming triangular elements for analysis of shell structures

✍ Chen Wanji; Y. K. Cheung 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 203 KB 👁 2 views

Based on the re"ned non-conforming element method, simple #at triangular elements with standard nodal displacement parameters are proposed for the analysis of shell structures. For ensuring the convergence of the elements a new coupled continuity condition at the inter-element has been established i

Geometric non-linear analysis of space s

Geometric non-linear analysis of space shell structures using generalized conforming flat shell elements-for space shell structures

✍ Qun, Zhang ;Mu, Lu ;Wenqi, Kuang 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 201 KB 👁 2 views

An updated Lagrangian formulation of the generalized conforming ¯at shell element with drilling degrees of freedom is derived based on the incremental equation of virtual work of a three-dimensional (3D) continuum for a purely geometric non-linear analysis of the space structure. While solving the n

Application of the generalized conformin

Application of the generalized conforming flat shell element to geometrical non-linear analysis for composite stiffened shell structures

✍ Qun, Zhang ;Mu, Lu ;Wenqi, Kuang 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 290 KB 👁 2 views

This paper proves the generalized compatibility of the boundary displacement pattern of the generalized conforming ¯at shell element with drilling degrees of freedom and the central line displacement pattern of the beam element with Hermite interpolation. According to the incremental equation of vir

Adaptive mesh-updating methods for non-l

Adaptive mesh-updating methods for non-linear finite element analysis of shells

✍ P. Nordlund; A. E. Giannakopoulos; B. Häggblad 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 259 KB 👁 2 views

We consider methods for adaptive updating of computational meshes during incremental loading of non-linear shell and solid structures. In particular, we focus on updating methods where the initial topology of the mesh is maintained. The movement of the mesh (the convective step) is decoupled from th