The role of parallel computing in the stability analysis of aerospace shell structures

  • Johann Arbocz Delft University of Technology
  • Jan Hol Delft University of Technology

Abstract

The development of "DISDECO", the Delft Interactive Shell DEsign COde is described. The purpose of this project is to make the accumulated theoretical, numerical and practical knowledge of the last 25 years or so readily accessible to users interested in the analysis of buckling sensitive structures. With this open ended, hierarchical, interactive computer code the user can access from his workstation successively programs of increasing complexity. The computational modules currently operational in DISDECO provide the prospective user with facilities to calculate the critical buckling loads of stiffened anisotropic shells under combined loading, to investigate the effects the various types of boundary conditions will have on the critical load, and to get a complete picture of the degrading effects the different shapes of possible initial imperfections might cause, all in one interactive session. Once a design is finalized, its collapse load can be verified by running a large refined model remotely from behind the workstation with one of the current generation 2-dimensional codes, with advanced capabilities to handle both geometric and material nonlinearities.


 

Keywords

References

[1] J. Arbocz, J.M.A.M. HoI. Collapse of Axially Compressed Cylindrical Shells with Random Imperfections. AIAA Journal, 29: 2247- 2256, 1991.
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[3] B. Budiansky. Post-Buckling Behavior of Cylinders in Torsion. In: F.I. Niordson, ed., Proceedings of the Second IUTAM Symposium on Theory of Thin Shells, Copenhagen, Sept. 5- 9, 1967, 212- 233. Springer Verlag BerlinHeidelberg- New York, 1969.
[4] J .W. Hutchinson, J.C. Amazigo. Imperfection Sensitivity of Eccentrically Stiffened Cylindrical Shells. AIAA Journal, 5: 392- 401, 1967.
[5] N.S. Khot, V.B. Venkayya. Effect of Fiber Orientation on Initial Postbuckling Behavior and Imperfection Sensitivity of Composite Cylindrical Shells. Technical Report AFFDL-TR-70-125, Air Force Flight Dynamics Laboratory, Wright-Patterson Air Force Base, Ohio, December 1970.
Published
Jun 26, 2023
How to Cite
ARBOCZ, Johann; HOL, Jan. The role of parallel computing in the stability analysis of aerospace shell structures. Computer Assisted Methods in Engineering and Science, [S.l.], v. 4, n. 1, p. 3-25, june 2023. ISSN 2956-5839. Available at: <https://cames.ippt.gov.pl/index.php/cames/article/view/1411>. Date accessed: 21 nov. 2024.
Section
Articles