0
Research Papers: Design and Analysis

Simplified Limit Load Estimation of Components With Cracks Using the Reference Two-Bar Structure

[+] Author and Article Information
R. Adibi-Asl1

Faculty of Engineering and Applied Science, Memorial University, St. John’s, NL, A1B 3X5, Canadaradibi@engr.mun.ca

R. Seshadri

Faculty of Engineering and Applied Science, Memorial University, St. John’s, NL, A1B 3X5, Canada

1

Corresponding author.

J. Pressure Vessel Technol 131(1), 011204 (Nov 17, 2008) (8 pages) doi:10.1115/1.3012294 History: Received November 21, 2006; Revised September 30, 2007; Published November 17, 2008

Limit loads are determined in this paper by invoking the concept of equivalence of “static indeterminacy” that relates a multidimensional component configuration (with cracks) to a “reference two-bar structure.” Simple scaling relationships are developed that enable rapid determination of limit loads. The method is applied to different crack configurations, and the limit loads are compared with corresponding results obtained from inelastic finite element analysis.

Copyright © 2009 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Regions of lower and upper bounds of mα

Grahic Jump Location
Figure 4

Reference two-bar structure

Grahic Jump Location
Figure 5

Stress distribution ahead of the crack tip

Grahic Jump Location
Figure 6

Stress distribution ahead of the crack tip for different values of Es

Grahic Jump Location
Figure 7

Average stress ahead of the crack tip

Grahic Jump Location
Figure 8

Geometry and dimensions for (a) compact tension specimen, (b) middle-tension panel, (c) plate with multiple cracks, and (d) single edge notched bend specimen

Grahic Jump Location
Figure 9

Variation in the lower bound limit load multiplier with Es/E0: plane stress

Grahic Jump Location
Figure 10

Variation in the upper bound limit load multiplier with Es/E0: plane stress

Grahic Jump Location
Figure 11

Stress distribution ahead of the crack tip for different values of Es/E0—plane stress with thickness: plane stress

Grahic Jump Location
Figure 12

Constraint map for the compact tension specimen: plane stress

Grahic Jump Location
Figure 13

Stress distribution ahead of the crack tip for different values of Es/E0: three-dimensional model

Grahic Jump Location
Figure 14

Stress distribution ahead of the crack tip for different values of Es/E0: plane strain

Grahic Jump Location
Figure 15

Constraint map for the middle-tension panel

Grahic Jump Location
Figure 16

Constraint map for plate with multiple cracks

Grahic Jump Location
Figure 17

Constraint map for single edge notched bend specimen

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In