POSTBUCKLING ANALYSIS OF THIN PLATES BY A HYBRID TREFFTZ FINITE-ELEMENT METHOD

Authors
QIN QH
Citation
Qh. Qin, POSTBUCKLING ANALYSIS OF THIN PLATES BY A HYBRID TREFFTZ FINITE-ELEMENT METHOD, Computer methods in applied mechanics and engineering, 128(1-2), 1995, pp. 123-136
Citations number
21
Categorie Soggetti
Computer Application, Chemistry & Engineering",Mechanics,"Engineering, Mechanical","Computer Science Interdisciplinary Applications
Journal title
Computer methods in applied mechanics and engineering → ACNP
ISSN journal
00457825
Volume
128
Issue
1-2
Year of publication
1995
Pages
123 - 136
Database
ISI
SICI code
0045-7825(1995)128:1-2<123:PAOTPB>2.0.ZU;2-5
Abstract
A hybrid Trefftz finite element (HT FE) model for postbuckling analysi s of thin plates is presented, based on a modified variational princip le. With the aid of incremental form of equilibrium equations, all non -linear terms may be viewed as pseudo-loads, and then the in-plane and out-of-plane equations can be uncoupled. As a consequence, the soluti on procedure for the postbuckling plate becomes very simple. Two numer ical examples are considered to illustrate the correctness and accurac y of the proposed formulation.