Optimization of shallow shells with different yield stresses in tension and compression

Authors
Hein, H Lellep, J
Citation
H. Hein et J. Lellep, Optimization of shallow shells with different yield stresses in tension and compression, STRUCT OPT, 18(2-3), 1999, pp. 156-161
Citations number
8
Categorie Soggetti
Mechanical Engineering
Journal title
STRUCTURAL OPTIMIZATION
ISSN journal
09344373 → ACNP
Volume
18
Issue
2-3
Year of publication
1999
Pages
156 - 161
Database
ISI
SICI code
0934-4373(199910)18:2-3<156:OOSSWD>2.0.ZU;2-C
Abstract
The minimum weight problem of thin rigid-plastic shallow spherical shells i s studied. The thickness of the shell is piece-wise constant and the materi al has different yield stresses in tension and compression. The flow theory of plasticity is employed. Both solid and sandwich shells are considered. Necessary optimality conditions are derived with the aid of optimal control theory.