منابع مشابه
Optimum composite material design
— The microstructure identification problem is treated : given certain phases in given volume fractions, how to mix them in aperiodic cell so that the effective material constants of the periodic composite lie the closest possible to certain prescribed values ? The problem is studied for the linear conduction équation. It is stated in terms of optimal con trol theory ; the admissible micro geom...
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Excavators are heavy construction equipment consisting of a boom, dipper (or stick), bucket and cab on a rotating platform known as the "house". In this paper the hydraulic shovel excavator is analyzed through the D-H method. The shovel working device with the bucket capacity of 36m3 is optimized. The determination of the objective function, variables and constraints are described in ...
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in this paper, multi-stage optimum design of composite pressure vessels is presented. the design variables for composite vessels include the head shape, the winding angle, the layer thickness, the number of layers, and the stacking sequence. a parameter called modified shape factor is introduced as an objective function. this parameter takes into account the effects of the internal pressure and...
متن کاملOptimum stacking sequence design of composite materials Part I: Constant stiffness design
0263-8223/$ see front matter 2009 Elsevier Ltd. A doi:10.1016/j.compstruct.2009.01.006 * Corresponding author. Tel.: +1 514 690 4151; fax E-mail address: [email protected] (H. Designing an optimized composite laminate requires finding the minimum number of layers, and the best fiber orientation and thickness for each layer. To date, several optimization methods have been introduced ...
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ژورنال
عنوان ژورنال: Journal of the Japan Society for Composite Materials
سال: 1990
ISSN: 0385-2563
DOI: 10.6089/jscm.16.115