Nonlinear buckling and folding analysis of a storable tubular ultrathin boom for nanosatellites

Daniele Barbera; Susanna Laurenzi

doi:10.1016/j.compstruct.2015.05.024

Nonlinear buckling and folding analysis of a storable tubular ultrathin boom for nanosatellites

Daniele Barbera, Susanna Laurenzi^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

65 Downloads (Pure)

Abstract

In this work we investigated the stability behavior and the folding capability of an ultrathin tubular composite boom with C-cross section to be used in nanosatellites applications. A nonlinear buckling analysis was performed using the Riks method, adopting a perturbed finite element model to study the influence of the unavoidable geometrical variations of the boom thickness, arising from the composite manufacturing processes, on the stability behavior of the tubular structure. The effect of several levels of geometrical imperfection on the buckling behavior was analyzed. The minimum coil radius that can be used for a safe storage the boom was determined by quasi-static explicit analysis. The boom folding process was considered as formed by two sequential steps, the flattening and the coiling. The stress fields associated with both steps were investigated.

Original language	English
Pages (from-to)	226-238
Number of pages	13
Journal	Composite Structures
Volume	132
Early online date	14 May 2015
DOIs	https://doi.org/10.1016/j.compstruct.2015.05.024
Publication status	Published - 15 Nov 2015

Keywords

buckling analysis
deployable structures
finite element method
ultrathin composite

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10.1016/j.compstruct.2015.05.024

Barbera-Laurenzi-CompStruct-2015-Nonlinear-buckling-folding-analysis-of-storable-tubular-ultrathin-boom-for-nanosatellitesAccepted author manuscript, 741 KBLicence: CC BY-NC-ND 4.0

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title = "Nonlinear buckling and folding analysis of a storable tubular ultrathin boom for nanosatellites",

abstract = "In this work we investigated the stability behavior and the folding capability of an ultrathin tubular composite boom with C-cross section to be used in nanosatellites applications. A nonlinear buckling analysis was performed using the Riks method, adopting a perturbed finite element model to study the influence of the unavoidable geometrical variations of the boom thickness, arising from the composite manufacturing processes, on the stability behavior of the tubular structure. The effect of several levels of geometrical imperfection on the buckling behavior was analyzed. The minimum coil radius that can be used for a safe storage the boom was determined by quasi-static explicit analysis. The boom folding process was considered as formed by two sequential steps, the flattening and the coiling. The stress fields associated with both steps were investigated.",

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AU - Barbera, Daniele

AU - Laurenzi, Susanna

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N2 - In this work we investigated the stability behavior and the folding capability of an ultrathin tubular composite boom with C-cross section to be used in nanosatellites applications. A nonlinear buckling analysis was performed using the Riks method, adopting a perturbed finite element model to study the influence of the unavoidable geometrical variations of the boom thickness, arising from the composite manufacturing processes, on the stability behavior of the tubular structure. The effect of several levels of geometrical imperfection on the buckling behavior was analyzed. The minimum coil radius that can be used for a safe storage the boom was determined by quasi-static explicit analysis. The boom folding process was considered as formed by two sequential steps, the flattening and the coiling. The stress fields associated with both steps were investigated.

AB - In this work we investigated the stability behavior and the folding capability of an ultrathin tubular composite boom with C-cross section to be used in nanosatellites applications. A nonlinear buckling analysis was performed using the Riks method, adopting a perturbed finite element model to study the influence of the unavoidable geometrical variations of the boom thickness, arising from the composite manufacturing processes, on the stability behavior of the tubular structure. The effect of several levels of geometrical imperfection on the buckling behavior was analyzed. The minimum coil radius that can be used for a safe storage the boom was determined by quasi-static explicit analysis. The boom folding process was considered as formed by two sequential steps, the flattening and the coiling. The stress fields associated with both steps were investigated.

KW - buckling analysis

KW - deployable structures

KW - finite element method

KW - ultrathin composite

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DO - 10.1016/j.compstruct.2015.05.024

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SP - 226

EP - 238

JO - Composite Structures

JF - Composite Structures

ER -

Nonlinear buckling and folding analysis of a storable tubular ultrathin boom for nanosatellites

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