Download or read book Evaluation of Fatigue Crack Growth and Fracture Properties of Cryogenic Model Materials written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-15 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The criteria used to prevent failure of wind-tunnel models and support hardware were revised as part of a project to enhance the capabilities of cryogenic wind tunnel testing at NASA Langley Research Center. Specifically, damage-tolerance fatigue life prediction methods are now required for critical components, and material selection criteria are more general and based on laboratory test data. The suitability of two candidate model alloys (AerMet 100 and C-250 steel) was investigated by obtaining the fatigue crack growth and fracture data required for a damage-tolerance fatigue life analysis. Finally, an example is presented to illustrate the newly implemented damage tolerance analyses required of wind-tunnel model system components.Newman, John A. and Forth, Scott C. and Everett, Richard A., Jr. and Newman, James C., Jr. and Kimmel, William M.Langley Research CenterCRACK PROPAGATION; CRYOGENIC WIND TUNNELS; CRACKING (FRACTURING); TOLERANCES (MECHANICS); WIND TUNNEL MODELS; WIND TUNNEL TESTS; FATIGUE (MATERIALS); CRYOGENICS; PREDICTION ANALYSIS TECHNIQUES; MARAGING STEELS

Download or read book Evaluation of Fatigue Crack Growth and Fracture Properties of Cryogenic Model Materials written by and published by . This book was released on 2002 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Crack Growth under Spectrum Loads written by and published by ASTM International. This book was released on 1976 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Crack Growth Measurement and Data Analysis written by S. J Hudak and published by ASTM International. This book was released on 1981 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue and fracture Toughness cryogenic behavior written by C. F. Hickey and published by ASTM International. This book was released on 1974 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigure and Fracture Toughness CRYOGENIC BEHAVIOR written by and published by ASTM International. This book was released on with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods and Models for Predicting Fatigue Crack Growth Under Random Loading written by J. B. Chang and published by ASTM International. This book was released on 1981 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cyclic Stress Strain and Plastic Deformation Aspects of Fatigue Crack Growth written by L. F. Impellizzeri and published by ASTM International. This book was released on 1977 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stress Analysis and Growth of Cracks written by and published by ASTM International. This book was released on 1972 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Prediction of Fatigue crack Growth Under Variableamplitude and Spectrum Loading Using a Closure Model written by and published by . This book was released on 1981 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanics of Crack Growth written by J. R. Rice and published by ASTM International. This book was released on 1976 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Crack Growth Models for Elevated Temperature Fatigue written by GK. Haritos and published by . This book was released on 1988 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: To date, only two models have been proposed for predicting crack growth rates in aircraft engine materials under typical operating conditions. Moreover, modeling to date has been performed on materials which exhibit limited amounts of time-dependent behavior. This investigation evaluates the predictive and interpolative capabilities of these models when applied to IN718, at 649°C. At this temperature, this material exhibits significant time-dependent behavior. Experimental data were generated and used to assess the predictive and interpolative characteristics of each model. These data covered variations in frequency, stress ratio, and hold time. Values for the coefficients in the functional relationships between the constants and the test variables were obtained for the hyperbolic sine equation (SINH) model. Similar functional relationships were incorporated into the modified sigmoidal equation (MSE) model. Several important conclusions were drawn about the capabilities of these two models to predict crack-growth rates in turbine-engine materials at elevated temperature.

Download or read book Part Through Crack Fatigue Life Prediction written by J. B. Chang and published by ASTM International. This book was released on 1979 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Interpolative Modeling Concepts for Fatigue Crack Growth at Elevated Temperature written by Gerald O. Painter (1LT, USAF.) and published by . This book was released on 1984 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Crack Growth written by Ping Tang and published by Nova Science Publishers. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the authors present current research in the study of the mechanisms, behaviour and analysis of fatigue crack growths. Topics discussed in this compilation include the unified fatigue crack growth rate model; practical tools for statistical fatigue design; probablistic algorithms performance evaluation and application in multi-fractured structures; three dimensional effects in the fracture mechanics of bi-dimensional specimens; fatigue crack propagation mechanism in porous open pore metal foams; lifetime predictions for short fatigue crack's initiation-propagation by basic mechanical properties; variable amplitude fatigue crack growth in selected aluminium alloys; fatigue threshold R-curves for analysis of short fatigue cracks; and multiaxial fatigue life prediction for lateral notched round bars made of high strength steel.

Download or read book Current Research on Fatigue Cracks written by Tsuneshichi Tanaka and published by . This book was released on 1987 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Crack Growth written by R. A. Smith and published by Pergamon. This book was released on 1986 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: