Ply layup optimization and micromechanics tailoring of composite aircraft engine structures

Kodiyalam, Srinivas; Parthasarathy, V.; Hartle, Michael; Mcknight, R. L.

doi:10.2514/3.23829

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…178,205,674 In most of the studies, fiber-reinforced polymer–matrix composites were considered. In some studies, ceramic-matrix, 70,253,377,426,684,816 concrete-matrix, 968 or metal-matrix 300,331,341,377,545,882 composites, and functionally graded composites 341,737,781,821,872,960,961 were optimized.…”

Section: Introductionmentioning

confidence: 99%

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Optimum Design of Composite Structures: A Literature Survey (1969–2009)

Sonmez

2016

Journal of Reinforced Plastics and Composites

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Optimum structural design of composites is a research subject that has drawn the attention of many researchers for more than 40 years with a growing interest. In this study, a review of the literature on this subject is presented. The papers are classified according to the type of the composite structure optimized in those studies, the loading conditions, the objective function, the structural analysis method, the design variables, the constraints, the failure criteria, and the search algorithm used by the researchers.

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Section: Introductionmentioning

confidence: 99%

“…Accordingly, in some of the studies, the goal was to minimize laminate thickness, 12,17,35,38,59,60,64,83,84,110,129,136,143,155,157,165,170,174,188,191,206,211,225,234,253,254,259,265,267,268,282,286,293,315,317,319,333,343–345,350,351,360,379,380,387,396,408,410,411,415,428,438,498,501,505,535,539,541,592,595,617,622,627,632,…”

Section: Introductionmentioning

confidence: 99%

Optimum Design of Composite Structures: A Literature Survey (1969–2009)

Sonmez

2016

Journal of Reinforced Plastics and Composites

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Effective mechanical properties strategy for modal analysis and optimization of composite structures

Bachrach

Kodiyalam

1995

Composites Engineering

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Structural Optimization with Thermal and Mechanical Constraints

Grandhi

1999

Journal of Aircraft

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This paper reports on the testing of the adaptability of the new approximation tools for thermal structural optimization. A finite element based procedure is proposed for obtaining a minimum mass design of structures subjected to stress, displacement, and temperature constraints. The optimization is based on a new two-point approximation method for the function. The coupling between thermal and structural sensitivities is taken into account to ensure the convergence. The direct or adjoint method is used for the sensitivity analysis. The two-point approximation is the incomplete second-order Taylor series expansion in terms of the intervening variables. The exponent of each design variable and the unknown constant in the second-order terms can be obtained in a closed form. This two-point approximation is used for temperature, displacement, and internal force approximations. Stress constraints are calculated by using approximated internal forces. Finally, the optimization procedure is demonstrated by two examples: the first example is the design of a titanium plate with aluminum bars and the second example is a structural wing box. These examples are subjected to external heating and mechanical loads, with temperature, strength, and minimum gauge constraints.

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Ply layup optimization and micromechanics tailoring of composite aircraft engine structures

Cited by 5 publications

References 4 publications

Optimum Design of Composite Structures: A Literature Survey (1969–2009)

Optimum Design of Composite Structures: A Literature Survey (1969–2009)

Effective mechanical properties strategy for modal analysis and optimization of composite structures

Structural Optimization with Thermal and Mechanical Constraints

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