0
TECHNICAL PAPERS

Hot Spot Stress S-N Curve for Fatigue Analysis of Plated Structures

[+] Author and Article Information
Inge Lotsberg, Gudfinnur Sigurdsson

DNV Norway

J. Offshore Mech. Arct. Eng 128(4), 330-336 (May 31, 2006) (7 pages) doi:10.1115/1.2355512 History: Received April 12, 2005; Revised May 31, 2006

Finite element analysis is being used by designers for fatigue assessment of structures. It is therefore important that a proper link between calculated hot spot stress and fatigue capacity is established. The fatigue capacity is expressed as a hot spot stress S-N curve. This paper presents a derivation of a hot spot stress S-N curve to be used when the hot spot stress is derived from finite element analysis of plated structures. The hot spot S-N curve is linked to the methodology used for finite element analysis of plated structures that is being included in design recommendations for fatigue assessment of welded structures.

FIGURES IN THIS ARTICLE
<>
Copyright © 2006 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 5

Crack growth into depth curves for same hot spot stress with different stress gradients

Grahic Jump Location
Figure 6

Crack growth along surface for same hot spot stress with different stress gradients

Grahic Jump Location
Figure 7

Fatigue test results from specimens 1–5 plotted into S-N diagram where data for specimen 4 is adjusted due to bending over plate thickness and data for 5 is adjusted for residual stress

Grahic Jump Location
Figure 8

K factor as function of attachment length in fatigue a design standard

Grahic Jump Location
Figure 9

Hot spot stress S-N data derived from the HHI tests

Grahic Jump Location
Figure 10

Fatigue tested full scale connections

Grahic Jump Location
Figure 11

S-N data from full scale fatigue tests compared with hot spot stress S-N curve

Grahic Jump Location
Figure 4

Crack growth curves for same hot spot stress with different stress gradients

Grahic Jump Location
Figure 1

Specimens tested by HHI

Grahic Jump Location
Figure 2

Hot spot S-N data without correction for bending stress in HHI specimen 4 and residual stress in specimen 5

Grahic Jump Location
Figure 3

Crack growth analysis of hopper corner

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.

Related Journal Articles
Related eBook Content
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