Damage-tolerant design optimization of laminated composite structures using dispersion of ply angles by genetic algorithm

2012 ◽  
Vol 31 (12) ◽  
pp. 799-814 ◽  
Author(s):  
Sonali Gyan ◽  
Ranjan Ganguli ◽  
G Narayana Naik
Keyword(s):  
Genetic Algorithm ◽  
Design Optimization ◽  
Composite Structures ◽  
Laminated Composite ◽  
Laminated Composite Structures ◽  
Damage Tolerant

Impact on composite structures

2004 ◽  
Vol 108 (1089) ◽  
pp. 541-563 ◽  
Author(s):  
G. A. O. Davies ◽  
R. Olsson
Keyword(s):  
Composite Structures ◽  
Structural Damage ◽  
Impact Damage ◽  
Laminated Composite ◽  
Design Tools ◽  
Laminated Composite Structures ◽  
Consequent Reduction ◽  
The Subject ◽  
Research Initiatives ◽  
Damage Tolerant

The problem of impact damage in laminated composite structures, and the consequent reduction in residual strength, has been a topic of continual research for over two decades. The number of journal papers on the subject now runs into four figures and most have been conscientiously reviewed by Abrate(1991, 1994, 1998). This review is not intended to be in the academic tradition, with emphasis on acknowledging the authorship of all the various research initiatives. Instead we present our opinions so that the reader can appreciate our current understanding of the problem, our capability of predicting by analysis, and the scope of the design tools for avoiding structural damage, or at least designing damage tolerant aerospace structures.

A comparative analysis of evolutionary algorithms in the design of laminated composite structures

2017 ◽  
Vol 24 (1) ◽  
pp. 13-21 ◽  
Author(s):  
Pavel Y. Tabakov ◽  
Sibusiso Moyo
Keyword(s):  
Evolutionary Algorithms ◽  
Design Optimization ◽  
Composite Structures ◽  
Optimization Problems ◽  
Laminated Composite ◽  
Design Sensitivity ◽  
Optimization Techniques ◽  
Full Potential ◽  
Analysis And Design ◽  
Laminated Composite Structures

AbstractThe increased use of composite materials and structures in many engineering applications led to the need for a more accurate analysis and design optimization. While methods of stress-strain analysis developed faster, optimization techniques have been lagging behind. As a result, many designed structures do not fulfill their full potential. The present study demonstrates the major achievements in recent years in an application of evolutionary algorithms to the design optimization of fiber-reinforced laminated composite structures. Such structures are of much interest due to high structural design sensitivity to fiber orientations as well as complex multidimensional discrete optimization problems. Using an anisotropic multilayered cylindrical pressure vessel and an exact elasticity solution as an example, we show how the optimum, or near–optimum, solution can be found in a more efficient way.

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