Periodic Overload And Transport Spectrum Fatigue Crack Growth Tests Of Ti62222sta And Al2024t3 Sheet
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Periodic Overload And Transport Spectrum Fatigue Crack Growth Tests Of Ti62222sta And Al2024t3 Sheet
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Author : Edward P. Phillips
language : en
Publisher:
Release Date : 1999
Periodic Overload And Transport Spectrum Fatigue Crack Growth Tests Of Ti62222sta And Al2024t3 Sheet written by Edward P. Phillips and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Aluminum alloys categories.
Fatigue Testing And Analysis Under Variable Amplitude Loading Conditions
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Author : Peter C. McKeighan
language : en
Publisher: ASTM International
Release Date : 2005
Fatigue Testing And Analysis Under Variable Amplitude Loading Conditions written by Peter C. McKeighan and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Technology & Engineering categories.
Thirty-eight peer-review papers provide the latest information on fatigue testing and analysis under variable amplitude spectrum loading conditions focus purely on fatigue testing, fatigue design techniques, or a combination of both. This new ASTM publication serves as an important reference for engineers and scientists involved in structural integrity and component lifetime management.
Multiscaling In Molecular And Continuum Mechanics Interaction Of Time And Size From Macro To Nano
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Author : G.C. Sih
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-11-29
Multiscaling In Molecular And Continuum Mechanics Interaction Of Time And Size From Macro To Nano written by G.C. Sih and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-11-29 with Science categories.
This volume on multiscaling has been motivated by the advancement of nano-technology in the past four decades. In particular, nano-electronics has paved the way to show that the behavior of nano-size bodies are not only different from macro-size bodies but they do not obey the same physical laws. There appears to be a mesoscopic region which separates the laws of quantum physics and continuum mechanics. A gap has been left in the full range of scaling from macro to nano. Micro-manipulation can be made more effective if the atomic and molecular scale activities can be identified more precisely with the use specific objectives. In this respect, material science has already benefited by positioning and structuring of nanometer-scale particles to arrive at the desired macroscopic material properties. The idea has been implemented to tailor-make structural materials for the Boeing 787 to better accommodate non-uniform stress and strain at different locations of the aircraft. Explored are also the possibility of coaxing DNA-based organisms such as viruses to improve performance of batteries, solar cells, fabrics, paints and other kinds of materials. The potential of assembling bio-molecules to build electronic components is also in the planning. The manipulation of molecules and atoms has been regarded as a common base for both material and life science. Quantum and continuum mechanics are being applied side by side for exploring the behavior of small and large objects moving at fast and slow speed.
Periodic Overload And Transport Spectrum Fatigue Crack Growth Tests Of Ti2222sta And A12024t3 Sheet
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Author : E. P. Phillips
language : en
Publisher:
Release Date : 1999
Periodic Overload And Transport Spectrum Fatigue Crack Growth Tests Of Ti2222sta And A12024t3 Sheet written by E. P. Phillips and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Metals categories.
Variable amplitude loading crack growth tests have been conducted to provide data that can be used to evaluate crack growth prediction codes. Tests with periodic overloads or overloads followed by underloads were conducted on titanium alloy Ti-6Al-2Sn-2Zr-2Mo-2Cr solution treated and aged (Ti62222STA) material at room temperature and at 350 deg. F. Spectrum fatigue crack growth tests were conducted on two materials (Ti62222STA and aluminum alloy 2024-T3) using two transport lower-wing test spectra at two temperatures (room temperature and 350 deg. F (Ti only)). Test lives (growth from an initial crack half-length of 0.15 in. to failure) were recorded in all of the tests and the crack length against cycles (or flights) data were recorded in many of the tests. The following observations were made regarding the test results: (1) in tests of Ti62222STA material, the tests at 350 deg. F had longer lives than those at room temperature, (2) in tests to the MiniTwist spectrum, the Al2024T3 material showed much greater crack growth retardations due to the highest stresses in the spectrum than did the Ti62222STA material, and (3) comparisons of material crack growth performances on an "equal weight" basis were spectrum dependent.
Periodic Overload And Transport Spectrum Fatigue Crack Growth Tests Of Ti62222sta And A12024t3 Sheet
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Author : Edward P. Phillips
language : en
Publisher:
Release Date : 1999
Periodic Overload And Transport Spectrum Fatigue Crack Growth Tests Of Ti62222sta And A12024t3 Sheet written by Edward P. Phillips and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Atlas Of Fatigue Curves
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Author : Howard E. Boyer
language : en
Publisher: ASM International
Release Date : 1985-12-31
Atlas Of Fatigue Curves written by Howard E. Boyer and has been published by ASM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985-12-31 with Technology & Engineering categories.
Contains more than 500 fatigue curves for industrial ferrous and nonferrous alloys. Also includes an explanation of fatigue testing and interpretation of test results. Each curve is presented independently and includes an explanation of its particular importance.
Methods Of Analysis And Solutions Of Crack Problems
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Author : George C. Sih
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Methods Of Analysis And Solutions Of Crack Problems written by George C. Sih and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.
It is weH known that the traditional failure criteria cannot adequately explain failures which occur at a nominal stress level considerably lower than the ultimate strength of the material. The current procedure for predicting the safe loads or safe useful life of a structural member has been evolved around the discipline oflinear fracture mechanics. This approach introduces the concept of a crack extension force which can be used to rank materials in some order of fracture resistance. The idea is to determine the largest crack that a material will tolerate without failure. Laboratory methods for characterizing the fracture toughness of many engineering materials are now available. While these test data are useful for providing some rough guidance in the choice of materials, it is not clear how they could be used in the design of a structure. The understanding of the relationship between laboratory tests and fracture design of structures is, to say the least, deficient. Fracture mechanics is presently at astandstill until the basic problems of scaling from laboratory models to fuH size structures and mixed mode crack propagation are resolved. The answers to these questions require some basic understanding ofthe theory and will not be found by testing more specimens. The current theory of fracture is inadequate for many reasons. First of aH it can only treat idealized problems where the applied load must be directed normal to the crack plane.
Periodic Overload And Transport Spectrum Fatigue Crack Growth Tests Of Ti62222sta And A12024t3 Sheet Nasa Tm 1999 208995 Mar 26 1999
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Author : United States. National Aeronautics and Space Administration
language : en
Publisher:
Release Date : 1999*
Periodic Overload And Transport Spectrum Fatigue Crack Growth Tests Of Ti62222sta And A12024t3 Sheet Nasa Tm 1999 208995 Mar 26 1999 written by United States. National Aeronautics and Space Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999* with categories.
Fracture And Fatigue Control In Structures
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Author : John M. Barsom
language : en
Publisher:
Release Date : 1999
Fracture And Fatigue Control In Structures written by John M. Barsom and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Electronic books categories.
Annotation An introduction for practicing engineers or students at the beginning graduate or advanced undergraduate level, emphasizing the application of fracture mechanics to preventing fracture and fatigue failures in structures, rather than the theoretical aspects of the field. The topics include stress analysis for members with cracks, resistance forces, fatigue crack initiation, and fitness for service. Among the case studies are bridges, oil tankers, and steel casings. The earlier editions were in 1977 and 1987. Annotation copyrighted by Book News, Inc., Portland, OR.
Usaf Damage Tolerant Design Handbook
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Author : J. P. Gallagher
language : en
Publisher:
Release Date : 1984
Usaf Damage Tolerant Design Handbook written by J. P. Gallagher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Airframes categories.
The handbook provides specific background data and justification for the detailed requirements of MIL-A-83444 and provides guidelines and state-of-the-art analysis methods to assist contractor and USAF personnel in complying with the intent of the specification and in solving cracking problems, in general, for metallic aircraft structures. Cf. Report Documentation Page.