Author : Charles E. Harris
Publisher :
Page : 520 pages
File Size : 45,5 MB
Release : 1994
Category : Airframes
ISBN :
Author : William Alan Van der Sluys
Publisher : ASTM International
Page : 304 pages
File Size : 17,34 MB
Release : 1997
Category : Metals
ISBN : 0803124082
Author :
Publisher :
Page : 568 pages
File Size : 36,15 MB
Release : 1972
Category : Mechanics, Applied
ISBN :
Author : Norbert G. H. Meyendorf
Publisher : Springer Science & Business Media
Page : 435 pages
File Size : 36,72 MB
Release : 2013-11-21
Category : Science
ISBN : 3662089882
With an emphasis on aircraft materials, this book describes techniques for the material characterization to detect and quantify degradation processes such as corrosion and fatigue. It introduces readers to these techniques based on x-ray, ultrasonic, optical and thermal principles and demonstrates the potential of the techniques for a wide variety of applications concerning aircraft materials, especially aluminum and titanium alloys. The advantages and disadvantages of various techniques are evaluated.
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 32 pages
File Size : 12,8 MB
Release : 2018-07-13
Category :
ISBN : 9781722867089
The corrosion fatigue crack growth characteristics of small surface and corner cracks in aluminum alloy 2024 is established. The damaging effect of salt water on the early stages of small crack growth is characterized by crack initiation at constituent particle pits, intergranular microcracking for a less than 100 micrometers, and transgranular small crack growth for a micrometer. In aqueous 1 percent NaCl and at a constant anodic potential of -700 mV(sub SCE), small cracks exhibit a factor of three increase in fatigue crack growth rates compared to laboratory air. Small cracks exhibit accelerated corrosion fatigue crack growth rates at low levels of delta-K (less than 1 MPa square root of m) below long crack delta-K (sub th). When exposed to Paris regime levels of crack tip stress intensity, small corrosion fatigue cracks exhibit growth rates similar to that observed for long cracks. Results suggest that crack closure effects influence the corrosion fatigue crack growth rates of small cracks (a less than or equal to 100 micrometers). This is evidenced by similar small and long crack growth behavior at various levels of R. Contrary to the corrosion fatigue characteristics of small cracks in high strength steels, no pronounced chemical crack length effect is observed for Al by 2024 exposed to salt water. Piascik, Robert S. and Willard, Scott A. Langley Research Center RTOP 538-02-10-01...
Author : Claude Bathias
Publisher : John Wiley & Sons
Page : 415 pages
File Size : 45,18 MB
Release : 2013-03-04
Category : Technology & Engineering
ISBN : 1118623371
The design of mechanical structures with improved and predictable durability cannot be achieved without a thorough understanding of the mechanisms of fatigue damage and more specifically the relationships between the microstructure of materials and their fatigue properties. Written by leading experts in the field, this book (which is complementary to Fatigue of Materials and Structures: Application to Damage and Design, also edited by Claude Bathias and André Pineau), provides an authoritative, comprehensive and unified treatment of the mechanics and micromechanisms of fatigue in metals, polymers and composites. Each chapter is devoted to one of the major classes of materials or to different types of fatigue damage, thereby providing overall coverage of the field. The book deals with crack initiation, crack growth, low-cycle fatigue, gigacycle fatigue, shorts cracks, fatigue micromechanisms and the local approach to fatigue damage, corrosion fatigue, environmental effects and variable amplitude loadings, and will be an important and much used reference for students, practicing engineers and researchers studying fracture and fatigue in numerous areas of mechanical, structural, civil, design, nuclear, and aerospace engineering as well as materials science.
Author :
Publisher :
Page : 702 pages
File Size : 33,76 MB
Release : 1995
Category : Aeronautics
ISBN :
Author : G.C. Sih
Publisher : Springer Science & Business Media
Page : 467 pages
File Size : 19,72 MB
Release : 2007-11-29
Category : Science
ISBN : 1402050623
For the first time, a book is being edited to address how results from one scale can be shifted or related to another scale, say from macro to micro or vice versa. The new approach retains the use of the equilibrium mechanics within a scale level such that cross scale results can be connected by scale invariant criteria. Engineers in different disciplines should be able to understand and use the results.
Author : E.E. Gdoutos
Publisher : Springer Science & Business Media
Page : 1452 pages
File Size : 41,67 MB
Release : 2008-01-08
Category : Science
ISBN : 1402049722
The 16th European Conference of Fracture (ECF16) was held in Greece, July, 2006. It focused on all aspects of structural integrity with the objective of improving the safety and performance of engineering structures, components, systems and their associated materials. Emphasis was given to the failure of nanostructured materials and nanostructures including micro- and nano-electromechanical systems (MEMS and NEMS).
Author :
Publisher :
Page : 1994 pages
File Size : 27,10 MB
Release : 1995
Category : Government publications
ISBN :
