Monte Carlo reliability analysis of tophat stiffened composite plate structures under out of plane loading

被引:24
|
作者
Sobey, A. J. [1 ]
Blake, J. I. R. [1 ]
Shenoi, R. A. [1 ]
机构
[1] Univ Southampton, Southampton SO17 1BJ, Hants, England
基金
英国工程与自然科学研究理事会;
关键词
Monte Carlo simulation; Composite failure; Structures; PROBABILISTIC STRENGTH ANALYSIS; QUADRATIC FAILURE CRITERION; PHENOMENOLOGICAL MODELS; LAMINATED COMPOSITES; PART-B; OPTIMIZATION; EXERCISE; PREDICTION; SIMULATION; DESIGN;
D O I
10.1016/j.ress.2012.08.011
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Composite materials are often utilised for their high strength to weight ratio, excellent corrosion resistance, etc. but are also characterised by variabilities and uncertainties in their mechanical properties owing to the material make-up, process and fabrication techniques. It is essential that modelling techniques continue to be developed to take account of these variabilities and uncertainties and as more complicated structures are developed it is important to have rapid assessment methods to determine the reliability of these structures. Grillage analysis methods have been previously used for assessment of tophat stiffened composite structures using simple failure criteria. As new criteria are introduced, such as by the World Wide Failure Exercise, the response of more complex topologies must be introduced. This paper therefore assesses the reliability of composite grillages using Navier grillage method incorporating up to date failure criteria. An example, taken from boatbuilding, is used to show the results of using these more complex assessment methods showing that it is of high importance to use the correct assessment criteria. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:41 / 49
页数:9
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