Abstract
A method is proposed for solution of the problem of the compromise optimization of three properties of a composite plate (thermal conductivity, stability, and the probability P* of design realization), which depend on three initial stochastic data with constant average values, and two variable initial data. The geometry of the domain of plate properties, the curve of optimal Pareto solutions, and the scatter ellipses is determined at four points for a given range of variable parameters. A method of constructing the curves of optimal Pareto solutions for the following assigned probabilities of design realization is proposed and numerically implemented: P*=0.40, 0.80, and 0.95. The generalized efficiency function ΦΣ (ΦΣ → max, 0 ≤ ΦΣ ≤ 1) of the first two properties decreases from 0.74 to 0.23 as the numerical value of P* increases from 0.40 to 0.95. A family of isolines ΦΣ = const is plotted for all three properties investigated, and max ΦΣ determined as 0.63.
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References
A. Soliro, C. Antonio, and T. Marques, Optimization of composite materials using reliability, Structural Optimization 93. World Congress on Optimal Design of Structural Systems, Proceedings, Vol. 1, (1993), pp. 343–352.
G. A. Teters and A. F. Kregers, “Problems of the nonlinear mechanics of composites. A review,” Mekh. Kompoz. Mater.,29, No. 1, 50–60 (1993).
A. F. Kregers, G. A. Teters, Yu. G. Melbardis, and A. Zh. Lagzdin', “Characteristics of the four-dimensional normal property distribution of a composite subjected to stochastic compromise optimization,” Mekh. Kompoz. Mater.,32, No. 5, 625–635 (1996).
A. Porri, E. Speranzini, and R. Vetturini, Reliability based multicriteria optimal design: an application to composite material structures, Structural Optimization 93. The World Congress on Optimal design of Structural Systems. Proceedings, Vol. 1, (1993), pp. 449–456.
G. A. Teters and A. F. Kregers, “Multipurpose optimal design of composite structures. A review,” Mekh. Kompoz. Mater.,32, No. 3, 363–376 (1996).
Yu. G. Melbardis, A. F. Kregers, and G. A. Teters, “Probability of the realization (with allowance for constraints) of a compromise design of a laminar composite plate,” Mekh. Kompoz. Mater.,30, No. 3, 391–397 (1994).
A. F. Kregers and M. F. Rektin', “Analysis of the shape of the multidimensional property domain of an optimized composite,” Mekh. Kompoz. Mater., No. 5, 876–884 (1991).
A. F. Kregers, Yu. G. Melbardis, and M. F. Rektin'sh, “Multipurpose optimization of the elastic and thermotechnical properties of fibrous composites,” Mekh. Kompoz. Mater., No. 1, 37–47 (1990).
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Institute of Polymer Mechanics, Riga, Latvia. Translated from Mekhanika Kompozitnykh Materialov, Vol. 33, No. 5, pp. 626–635, September–October, 1997.
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Teters, G.A., Kregers, A.F. Compromise optimization of a composite plate with a given probability of realization. Mech Compos Mater 33, 441–448 (1997). https://doi.org/10.1007/BF02256898
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DOI: https://doi.org/10.1007/BF02256898