Equivalent Initial Flaw Size Testing and Analysis

reportActive / Technical Report | Accession Number: ADA387572 | Open PDF

Abstract:

The Equivalent Initial Flaw Size EIFS concept was developed nearly 30 years ago in an attempt to account for the initial quality, both manufacturing and bulk material properties, of the structural detail prone to fatigue cracking. Widespread use of this concept has not been realized due to the large amount of test data required to develop a reliable EIFS distribution.

Author(s):
Fawaz, Scott A.
Author Organization(s):
AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE
Descriptive Note:
Final rept. 1 Oct 1997-15 Jun 2000
Supplementary Note:
DOI: 10.21236/ADA387572
Pagination:
0187

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFRL-VA-WP-TR-2000-3024
Task Number(s):
0H
Project Number(s):
2401
Monitor Series:
TR-2000-3024, AFRL-VA-WP
 Subject Terms
Joint Capability Areas:
JCA_1_Force Support; JCA_1.2_Force Preparation; JCA_6.3.3_Spectrum Management; JCA_6_Net Centric; JCA_6.3_Net Management; JCA_5_Command and Control; JCA_5.3_Planning; JCA_6.4.1_Secure Information Exchange; JCA_6.1.3_Switching and Routing; JCA_3.2_Engagement; JCA_3_Force Application; JCA_6.1_Information Transport; JCA_JCA_4.1.2_Sustain the Force; JCA_4.1_Deployment and Distribution; JCA_6.4_Information Assurance; JCA_1.2.6_Concepts; JCA_8_Building Partnerships; JCA_3.2.1_Kinetic Means; JCA_3.2.2_Non-Kinetic Means; JCA_4.3_Maintain; JCA_8.2_Shape
Modernization Areas:
Fully Networked C3
Communities of Interest:
Air Platforms
Descriptor(s):
*CRACK PROPAGATION, EXPERIMENTAL DATA, AIRCRAFT MAINTENANCE, CRACKING(FRACTURING), BULK MATERIALS, DEFECTS(MATERIALS), HOLES(OPENINGS), FUSELAGES, FATIGUE(MECHANICS)
Field(s)/Group(s):
Mechanics
Keyword(s):
EIFS(EQUIVALENT INITIAL FLAW SIZE), THROUGH CRACK, STRIATIONS, CORNER CRACK, PE62210F, WUAFRL24010HRD
Report Date:
2000 Jun 01
Creation Date:
2001 Mar 29