Continuum Structural Layout in Consideration of the Balance of the Safety and the Properties of Structures

Published on May 4, 2017in Latin American Journal of Solids and Structures1.256
· DOI :10.1590/1679-78253679
Hongxin Wang6
Estimated H-index: 6
(Hunan University),
Jie Liu12
Estimated H-index: 12
(RMIT: RMIT University)
+ 2 AuthorsGuilin Wen22
Estimated H-index: 22
(Hunan University)
Sources
Abstract
IN THE ARTICLE, A NEW APPROACH CONSIDERING STRUCTURAL LOCAL FAILURE FOR TOPOLOGY OPTIMIZATION OF CONTINUUM STRUCTURE IS PROPOSED. IT AIMS AT NOT ONLY LOWERING THE RISK OF LOCAL FAILURE IN THE CONCERNED STRUCTURAL REGIONS, BUT ALSO ENSURING A GOOD STIFFNESS OF STRUCTURE. THE LOCAL FAILURE MAY BE CAUSED BY THE STRUCTURAL UNCERTAINTIES OR POSSIBLE STRUCTURAL FATIGUE. TO THIS END, A CRITERION TO EVALUATE THE EFFECT OF ONE LOCAL FAILURE ON THE STRUCTURE IS INTRODUCED. THIS CRITERION IS MINIMIZED TO REDUCE THE PROBABILITY OF STRUCTURAL DAMAGE BASED ON A INITIALIZED STRUCTURE WHICH IS OPTIMIZED WITH COMPLIANCE. SOLID ISOTROPIC WITH MATERIAL PENALIZATION (SIMP) METHOD AND OPTIMALITY CRITERIA (OC) METHOD ARE COMBINED TO SOLVE THE DESIGN PROBLEM. THE EFFECTIVENESS OF THE PROPOSED ALGORITHM IS VERIFIED BY A SERIES OF NUMERICAL EXAMPLES. FURTHERMORE, THE EXPERIMENT MERGING WITH ADDITIVE MANUFACTURING IS TAKEN TO PROVE THE ABILITY OF THE METHOD IN PRACTICAL ENGINEERING.
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