Author: Dong-Hwan ParkPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Near Threshold Fatigue Crack Propagation Behavior in Iron and Al - 3% Mg Alloy
Author: Dong-Hwan ParkNear-threshold Fatigue Crack Propagation and Closure Behaviour in an Aluminium Alloy
Author: W. ZhaoNear-Threshold Fatigue Crack Growth Behavior of Fine-Grain Nickel-Based Alloys
Author: John A. NewmanPublisher:
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 16
Book Description
Fatigue Crack Propagation in Metals and Alloys
Author: Ulrich KruppPublisher: John Wiley & Sons
ISBN: 3527315373
Category : Technology & Engineering
Languages : en
Pages : 312
Book Description
This comprehensive overview of the whole field of fatigue and fracture of metallic materials covers both the theoretical background and some of the latest experimental techniques. It provides a summary of the complex interactions between material microstructure and cracks, classifying them with respect to the overall damage process with a focus on microstructurally short cracks and dynamic embrittlement. It furthermore introduces new concepts for the numerical treatment of fatigue microcrack propagation and their implementation in fatigue-life prediction models.This comprehensive overview of the whole field of fatigue and fracture of metallic materials covers both the theoretical background and the latest experimental techniques. It provides a summary of the complex interactions between material microstructure and cracks, classifying them with respect to the overall damage process. It furthermore introduces new concepts for the numerical treatment of fatigue microcrack propagation and their implementation in fatigue-life prediction models.
Accelerated Near-Threshold Fatigue Crack Growth Behavior of an Aluminum Powder Metallurgy Alloy
Author: Accelerated Near-Threshold Fatigue Crack Growth Behavior of an Aluminum Powder Metallurgy Alloy
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721502271
Category :
Languages : en
Pages : 26
Book Description
Fatigue crack growth (FCG) research conducted in the near threshold regime has identified a room temperature creep crack growth damage mechanism for a fine grain powder metallurgy (PM) aluminum alloy (8009). At very low DK, an abrupt acceleration in room temperature FCG rate occurs at high stress ratio (R = Kmin/Kmax). The near threshold accelerated FCG rates are exacerbated by increased levels of Kmax (Kmax less than 0.4 KIC). Detailed fractographic analysis correlates accelerated FCG with the formation of crack-tip process zone micro-void damage. Experimental results show that the near threshold and Kmax influenced accelerated crack growth is time and temperature dependent. Piascik, Robert S. and Newman, John A. Langley Research Center NASA/TM-2002-211676, L-18180, NAS 1.15:211676, ARL-TR-2728
Elevated Temperature, Near-threshold Fatigue Crack Propagation in Aluminum Alloys
Author: Mark Leo RenauldNear-Threshold Fatigue Crack Growth Behavior of Fine-Grain Nickel-Based Alloys
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721587025
Category :
Languages : en
Pages : 28
Book Description
Constant-Kmax fatigue crack growth tests were performed on two finegrain nickel-base alloys Inconel 718 (DA) and Ren 95 to determine if these alloys exhibit near-threshold time-dependent crack growth behavior observed for fine-grain aluminum alloys in room-temperature laboratory air. Test results showed that increases in K(sub max) values resulted in increased crack growth rates, but no evidence of time-dependent crack growth was observed for either nickel-base alloy at room temperature. Newman, John A. and Piascik, Robert S. Langley Research Center NASA/TM-2003-212443, NAS 1.15:212443, L-18314, ARL-TR-3021
Scientific and Technical Aerospace Reports
Author: An Investigation of Fatigue Crack Growth Behavior in Cast Particulate Reinforced Aluminum Alloys
Author: Anthony George KeslinkePublisher:
ISBN:
Category :
Languages : en
Pages : 170
Book Description