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An approach to optimal design of composite laminates under elasto-plastic loading conditions

Title
An approach to optimal design of composite laminates under elasto-plastic loading conditions
Type
Article in International Conference Proceedings Book
Year
1997
Authors
J. Trigo Barbosa
(Author)
FEUP
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L. Simas Dinis
(Author)
FEUP
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Conference proceedings International
Pages: 1162-1167
5th International Conference on Computational Plasticity (COMPLAS V)
BARCELONA, SPAIN, MAR 17-20, 1997
Indexing
Publicação em ISI Proceedings ISI Proceedings
Publicação em ISI Web of Knowledge ISI Web of Knowledge - 0 Citations
Scientific classification
FOS: Engineering and technology
CORDIS: Technological sciences
Other information
Authenticus ID: P-001-C9D
Abstract (EN): A design optimisation process for elasto-plastic material behaviour of laminate composite structures made of thermoplastic resins is described. The approach considers two optimisation levels. At the first level the geometric linear or non-linear behaviour under elasto-plastic loading conditions is considered in order to obtain the optimal solution as a function of ply angles of the plates or shallow shells. At this stage the objective is to recover the plastic zones using only the anisotropic material properties. At the second level the ply thickness of the plates or shallow shells and the height and width of the reinforcement beams are changed to structure weight minimisation under the constraints of maximum allowed displacement or stresses without structural plastic collapse. It is expected that contradictory objectives as minimum elasto-plastic energy and structural weight are satisfied.
Language: English
Type (Professor's evaluation): Scientific
Contact: cantonio@fe.up.pt
Notes: Vol. 2
No. of pages: 6
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