Army Symposium on Solid Mechanics
Author: U. S. Army Materials and Mechanics Research Center, Watertown, Massachusetts
Publisher:
Published: 1978
Total Pages: 378
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: U. S. Army Materials and Mechanics Research Center, Watertown, Massachusetts
Publisher:
Published: 1978
Total Pages: 378
ISBN-13:
DOWNLOAD EBOOKAuthor: ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MASS.
Publisher:
Published: 1978
Total Pages: 365
ISBN-13:
DOWNLOAD EBOOKCase studies on the structural integrity and reliability of composites used in various aerostructures are discussed. (Author, modified-PL).
Author:
Publisher:
Published: 1984
Total Pages: 636
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1981
Total Pages: 1284
ISBN-13:
DOWNLOAD EBOOKAuthor: F. J. Giessler
Publisher:
Published: 1983
Total Pages: 168
ISBN-13:
DOWNLOAD EBOOKAn analytical and experimental program was conducted to evaluate the crack growth gage concept for application as an individual aircraft tracking device. Three gage designs were evaluated. Volume I discusses the evaluation of two versions of a stepped thickness gage and a stepped width gage. Volume II discusses the evaluation of a side-grooved constant thickness gage. An analytical evaluation of the change in transfer function corresponding to gage design parameter changes was performed to determine the configuration of the gages to be tested. Initial spectrum tests were conducted on the first stepped gage design to determine the ranking ability of the gage. Then constant amplitude tests were conducted on the second stepped gage design. A modification of the gage was made to improve spectrum test response. The modified gage was subjected to both constant amplitude testing and spectrum testing. The analytically derived crack growth rates were compared to the test data. In general, the analysis predicted slightly higher growth rates than observed.
Author: P. R. Abelkis
Publisher: ASTM International
Published: 1982
Total Pages: 500
ISBN-13: 9780803107144
DOWNLOAD EBOOKAuthor: S. D. Manning
Publisher:
Published: 1979
Total Pages: 82
ISBN-13:
DOWNLOAD EBOOKA critical evaluation of three analytical approaches is made to determine their applicability and/or potential for analytically assuring airframe durability during the design stage. A suitable analytical format for quantifying durability damage is developed based on U.S. Air Force durability design specifications and durability analysis needs. Air Force durability requirements are briefly reviewed and discussed. Three potential approaches for durability damage analysis are conceptually evaluated and discussed: (1) Conventional Fatigue Analysis (Palmgren-Miner Rule); (2) Deterministic Crack Growth Approach; and (3) Probabilistic Crack Growth Approach. The resulting evaluation provides the prerequisite work needed to develop a durability analysis methodology. The probabilistic crack growth approach is found to be the most promising for developing the durability analysis methodology under Phase I.