A preliminary structural design procedure for laser beam welded airframe stiffened panels
نویسندگان
چکیده
منابع مشابه
A Strategy for a Robust Design of Cracked Stiffened Panels
This work is focused on the numerical prediction of the fracture resistance of a flat stiffened panel made of the aluminium alloy 2024 T3 under a monotonic traction condition. The performed numerical simulations have been based on the micromechanical Gurson-Tvergaard (GT) model for ductile damage. The applicability of the GT model to this kind of structural problems has been studied and assesse...
متن کاملMulti-objective Optimisation and Preliminary Airframe Design
In this paper we explore established methods for optimising multi-objective functions whilst addressing the problem of preliminary design. Methods from the literature are investigated and new ones introduced. All methods are evaluated within a collaborative project with British Aerospace for whole system airframe design and the basic problems and difficulties of preliminary design methodology a...
متن کاملA two-step optimisation approach for the design of composite stiffened panels Part I: global structural optimisation
This paper deals with the definition of an optimisation procedure for the design of the wing-box composite stiffened panels subject to compression loads. In particular, the objective is to obtain a minimum-weight structure ensuring, at the same time, that the first buckling load should be greater than or equal to a threshold value. The optimisation strategy is subdivided into two phases: in the...
متن کاملPreliminary Airframe Design Using Co-Evolutionary Multiobjective Genetic Algorithms
A novel multiobjective optimisation approach utilising a genetic algorithm (GA) for the preliminary design of airframes is introduced. Concurrent GA processes each optimise one objective related to the problem. The fitness measure for individuals within each GA is adjusted by comparing the values of the variable parameters of identified solutions relating to a single objective with those of the...
متن کاملThe Application of Reliability Methods in the Design of Stiffened Frp Composite Panels for Marine Vessels
The use of composite laminate materials has increased rapidly in recent years due to their excellent strength to weight ratio and resistance to corrosion. In the construction of marine vessels, stiffened plates are the most commonly used structural elements, forming the deck, bottom hull, side shells and bulkheads. This paper presents the use of a stochastic approach to the design of stiffened ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Thin-Walled Structures
سال: 2012
ISSN: 0263-8231
DOI: 10.1016/j.tws.2012.03.003