Buckling and post-buckling of a pumpkin balloon

Y. Xu, M. Z.Q. Chen, W. J. Chen

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

Abstract

Pumpkin shaped balloon has been playing an important role in many space science explorations. This paper presents a computational study of buckling and post-buckling behavior of a 10 m diameter, 145 lobe pumpkin balloon, with lobes of approximately uniform radius. The ABAQUS commercial finite-element package is used. The study starts with a geometrically non-linear analysis to inflate the balloon modeled by linear-elastic membrane material which incorporates the wrinkling behavior. This is followed by an eigenvalue buckling analysis to predict the critical pressures corresponding to different buckling modes. Then, pristine new mesh models are set up with initial imperfection modes based on both the critical and combined eigenmodes. Finally, a geometrically non-linear post-buckling analysis is carried out to simulate the response of the balloon beyond the critical pressure.

Original languageEnglish
Title of host publication51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Publication statusPublished - 2010
Externally publishedYes
Event51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Orlando, FL, United States
Duration: 12 Apr 201015 Apr 2010

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN (Print)0273-4508

Conference

Conference51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Country/TerritoryUnited States
CityOrlando, FL
Period12/04/1015/04/10

ASJC Scopus subject areas

  • Architecture
  • Materials Science (all)
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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