Buckling Behavior of Shell Elements Subjected to Inelastic Reversed Cyclic Loading

Shell elements are commonly used over continuum 3D elements to model structural components for computational efficiency when information regarding behavior across the material thickness is not needed. Shell elements are widely believed to effectively capture the global hysteretic behavior of thin walled structural components. The objective of this research was to compare the hysteretic behavior of numerical models of links, such as those used in eccentrically braced frames that consisted entirely of shell and of continuum elements. The geometry, material properties, and loading protocol were consistent in the shell and 3D continuum analyses. The results captured by the shell-based models exhibited significantly more severe global degradation of the force deformation hysteresis at large inelastic deformations then the 3D continuum elements. This discrepancy was recorded for models of entire links as well as more simplified models. The results of this investigation have brought into question the reliability of shell elements in accurately capturing the buckling behavior of thin walled structural components subjected to extreme cyclic loading.

• Record URL:
  • https://doi.org/10.1061/41171(401)268
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784411711
• Supplemental Notes:
  • Copyright © 2011 ASCE
• Authors:
  • Stephens, Max
  • Dusicka, Peter
  • Lewis, Gregory
• Conference:
  • 2011 Structures Congress
  • Location: Las Vegas NV, United States
  • Date: 2011-4-14 to 2011-4-16
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;

Subject/Index Terms

• TRT Terms: Boundary element method; Buckling; Finite element method; Numerical analysis; Stiffeners (Plates); Structural models; Structures; Yield stress
• Subject Areas: Bridges and other structures; Design; I20: Design and Planning of Transport Infrastructure; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01347633
• Record Type: Publication
• ISBN: 978-0-7844-1171-1
• Files: TRIS, ASCE
• Created Date: Aug 8 2011 2:18PM