Actions for Variable-Amplitude Load Models for Fatigue Damage and Crack Growth

Email RIS file
Bookmark
Report an Issue

Variable-Amplitude Load Models for Fatigue Damage and Crack Growth / PS. Veers, SR. Winterstein, DV. Nelson, CA. Cornell

Conference Author
Development of Fatigue Loading Spectra (1987 : Cincinnati, Ohio)
Physical Description
1 online resource (26 pages) : illustrations, figures, tables
Additional Creators
Cornell, CA., Nelson, DV., Veers, PS., Winterstein, SR., American Society for Testing and Materials, and ASTM International
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Subscription required for access to full text.
License restrictions may limit access.
Summary
Load models for fatigue analysis and testing are tailored to the level of complexity required for the application. Random variable models are developed and applied to analyses in which load sequence effects can be neglected. Conventional narrow-band load peak and range distributions are applied to crack initiation and growth. It is shown that narrow-band load models provide useful, conservative life estimates for general Gaussian loadings. Distributions of significant peaks and ranges for wide-band loadings are developed empirically through simulations with racetrack filtering. An efficient ¿̐ưsequential¿̐ư simulation technique is introduced for continuous generation of both narrow- and wide-band random loads. Based on a simplified crack closure model, simulations of crack growth suggest that sequence effects are most influential when any or a combination of the following are present: larger ratios of crack opening stress to maximum applied stress, lower values of applied tensile mean stress, smaller values of yield stress and crack growth coefficient. When sequence effects are present, the regularity of the spacing between tensile overloads can be important. In particular, assumption of regularly spaced overloads can be nonconservative.
Dates of Publication and/or Sequential Designation
Volume 1989, Issue 1006 (January 1989)
Subject(s)
Other Subject(s)
ISBN
9780803150720 (e-ISBN)
9780803111851
0803111851
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 30.
Other Forms
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1989. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
View MARC record | catkey: 27990029