Two-Level Optimization of Dimensions and Stacking Sequences for Hat-Stiffened Composite Panel
نویسندگان
چکیده
منابع مشابه
Optimization Frameworks for Discrete Composite Laminate Stacking Sequences
(ABSTRACT) Composite panel structure optimization is commonly decomposed into panel optimization subproblems, with specified local loads, resulting in manufacturing incompatibilities between adjacent panel designs. Using genetic algorithms to optimize local panel stacking sequences allows panel populations of stacking sequences to evolve in parallel and send migrants to adjacent panels, so as t...
متن کاملOptimization of Composite Stiffened Cylindrical Shell using PSO Algorithm
Composite stiffened cylindrical shells are widely used as primary elements in aerospace structures. In the recent years, there has been a growing research interest in optimum design of composite stiffened cylindrical shell structures for stability under buckling load. This paper focuses upon the development of an efficient optimization of ring-stringer stiffened cylindrical shell. The opti...
متن کاملStudy on Damage Tolerance Behavior of Integrally Stiffened Panel and Conventional Stiffened Panel
The damage tolerance behavior of integrally and conventional stiffened panel is investigated based on the fracture mechanics and finite element analysis. The load bearing capability and crack growth characteristic of both types of the stiffened panels having same configuration subjected to distributed tensile load is examined in this paper. A fourteen-stringer stiffened panel is analyzed for a ...
متن کاملStacking sequence and shape optimization of laminated composite plates via a level-set method
We consider the optimal design of composite laminates by allowing a variable stacking sequence and in-plane shape of each ply. In order to optimize both variables we rely on a decomposition technique which aggregates the constraints into one unique constraint margin function. Thanks to this approach, an exactly equivalent bi-level optimization problem is established. This problem is made up of ...
متن کاملIdentification of Barely Visible Impact Damages on a Stiffened Composite Panel with a Probability-based Approach
A probability-based damage detection algorithm has been implemented in order to identify barely visible impact damages in two composite stiffened panels by means of Acousto Ultrasonics (AU). A modification of RAPID (reconstruction algorithm for probabilistic inspection of defects) has been implemented to adapt the algorithm to the current structures and transducer networks. An improvement of 40...
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: Journal of Computational Science and Technology
سال: 2007
ISSN: 1881-6894
DOI: 10.1299/jcst.1.22