### Abstract

In this paper, a cost effective design procedure for laminated composite structure using GA (Genetic Algorithms) is proposed. Design variables considered to enhance the rigidity of the laminated composite structure are the number of laminae, the fiber orientation and the stacking sequence. The fiber orientations are chosen among some prepared angles. In the proposed design procedure, a rigidity function is defined to determine which angle to reinforce by means of weighing coefficients and transformed elastic constants in the prepared angles. The weighing coefficients are defined to represent the distribution of principal stress in the structure. Then, the orientation of reinforcements can be found according to the weighing coefficients such that the defined rigidity function takes maximum. Futhermore, to find a global optimum solution, the weighing coefficients are adjusted. In this paper, the detail of our developed procedure and some applications are shown.

Original language | English |
---|---|

Pages (from-to) | 1316-1321 |

Number of pages | 6 |

Journal | Zairyo/Journal of the Society of Materials Science, Japan |

Volume | 45 |

Issue number | 12 |

Publication status | Published - 1996 Dec |

Externally published | Yes |

### Fingerprint

### Keywords

- Computational cost
- Fiber orientation
- GA
- Laminated composite structure
- Rigidity optimization
- Stacking sequence

### ASJC Scopus subject areas

- Chemical Engineering (miscellaneous)
- Metals and Alloys
- Polymers and Plastics

### Cite this

*Zairyo/Journal of the Society of Materials Science, Japan*,

*45*(12), 1316-1321.

**Efficient application of GA to design of fiber reinforced composites.** / Zako, Masaru; Takano, Naoki; Tsujikami, Tetsuya; Takeda, Norio.

Research output: Contribution to journal › Article

*Zairyo/Journal of the Society of Materials Science, Japan*, vol. 45, no. 12, pp. 1316-1321.

}

TY - JOUR

T1 - Efficient application of GA to design of fiber reinforced composites

AU - Zako, Masaru

AU - Takano, Naoki

AU - Tsujikami, Tetsuya

AU - Takeda, Norio

PY - 1996/12

Y1 - 1996/12

N2 - In this paper, a cost effective design procedure for laminated composite structure using GA (Genetic Algorithms) is proposed. Design variables considered to enhance the rigidity of the laminated composite structure are the number of laminae, the fiber orientation and the stacking sequence. The fiber orientations are chosen among some prepared angles. In the proposed design procedure, a rigidity function is defined to determine which angle to reinforce by means of weighing coefficients and transformed elastic constants in the prepared angles. The weighing coefficients are defined to represent the distribution of principal stress in the structure. Then, the orientation of reinforcements can be found according to the weighing coefficients such that the defined rigidity function takes maximum. Futhermore, to find a global optimum solution, the weighing coefficients are adjusted. In this paper, the detail of our developed procedure and some applications are shown.

AB - In this paper, a cost effective design procedure for laminated composite structure using GA (Genetic Algorithms) is proposed. Design variables considered to enhance the rigidity of the laminated composite structure are the number of laminae, the fiber orientation and the stacking sequence. The fiber orientations are chosen among some prepared angles. In the proposed design procedure, a rigidity function is defined to determine which angle to reinforce by means of weighing coefficients and transformed elastic constants in the prepared angles. The weighing coefficients are defined to represent the distribution of principal stress in the structure. Then, the orientation of reinforcements can be found according to the weighing coefficients such that the defined rigidity function takes maximum. Futhermore, to find a global optimum solution, the weighing coefficients are adjusted. In this paper, the detail of our developed procedure and some applications are shown.

KW - Computational cost

KW - Fiber orientation

KW - GA

KW - Laminated composite structure

KW - Rigidity optimization

KW - Stacking sequence

UR - http://www.scopus.com/inward/record.url?scp=0030380983&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030380983&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0030380983

VL - 45

SP - 1316

EP - 1321

JO - Zairyo/Journal of the Society of Materials Science, Japan

JF - Zairyo/Journal of the Society of Materials Science, Japan

SN - 0514-5163

IS - 12

ER -