Composite Structures

, volume 65 , issue 3-4 , pages 433-441

Multi-objective optimisation of composite absorber shape under crashworthiness requirements

L Lanzi ¹

L.M.L Castelletti ¹

M Anghileri ¹

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Dipartimento di Ingegneria Aerospaziale, Politecnico di Milano, Via La Masa, 34, 20158 Milano, Italy |

Publication type: Journal Article

Publication date: 2004-09-01

Elsevier

Composite Structures

scimago Q1

wos Q1

SJR: 1.761

CiteScore: 14.8

Impact factor: 7.1

ISSN: 02638223, 18791085

DOI: 10.1016/j.compstruct.2003.12.005

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Ceramics and Composites

Civil and Structural Engineering

Abstract

Moving from a validated finite element model of composite cylindrical absorbers, this work aims to optimise the shape of conical absorbers with elliptical cross-sections considering simultaneously different impact conditions. Since the use of non-linear finite element analyses to directly evaluate objectives and constraints during the optimisations would be unaffordable from a computational standpoint, a global approximation strategy is used. The crash capabilities of the absorbers are approximated with a system of Radial Basis Functions built by means of a minimum number of finite element analyses. The response surfaces are coupled with Genetic Algorithms to perform both constrained single- and multi-objective optimisations. The results prove that moderate eccentricity and conicity lead to high efficiency structures characterised by stable crush fronts and good absorption capabilities with also associated mass reduction up to the 7% considering vertical impacts and at least of the 20% considering 20° impacts with respect to ideal cylinders.

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Lanzi L., Castelletti L., Anghileri M. Multi-objective optimisation of composite absorber shape under crashworthiness requirements // Composite Structures. 2004. Vol. 65. No. 3-4. pp. 433-441.

GOST all authors (up to 50) Copy

Lanzi L., Castelletti L., Anghileri M. Multi-objective optimisation of composite absorber shape under crashworthiness requirements // Composite Structures. 2004. Vol. 65. No. 3-4. pp. 433-441.

RIS |

Cite this

RIS Copy

TY - JOUR

DO - 10.1016/j.compstruct.2003.12.005

UR - https://doi.org/10.1016/j.compstruct.2003.12.005

TI - Multi-objective optimisation of composite absorber shape under crashworthiness requirements

T2 - Composite Structures

AU - Lanzi, L

AU - Castelletti, L.M.L

AU - Anghileri, M

PY - 2004

DA - 2004/09/01

PB - Elsevier

SP - 433-441

IS - 3-4

VL - 65

SN - 0263-8223

SN - 1879-1085

ER -

BibTex |

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BibTex (up to 50 authors) Copy

@article{2004_Lanzi,

author = {L Lanzi and L.M.L Castelletti and M Anghileri},

title = {Multi-objective optimisation of composite absorber shape under crashworthiness requirements},

journal = {Composite Structures},

year = {2004},

volume = {65},

publisher = {Elsevier},

month = {sep},

url = {https://doi.org/10.1016/j.compstruct.2003.12.005},

number = {3-4},

pages = {433--441},

doi = {10.1016/j.compstruct.2003.12.005}

}

MLA

Cite this

MLA Copy

Lanzi, L., et al. “Multi-objective optimisation of composite absorber shape under crashworthiness requirements.” Composite Structures, vol. 65, no. 3-4, Sep. 2004, pp. 433-441. https://doi.org/10.1016/j.compstruct.2003.12.005.

Publisher

Elsevier

Journal

Composite Structures

scimago Q1

wos Q1

SJR

1.761

CiteScore

14.8

Impact factor

7.1

ISSN

02638223 (Print)

18791085

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