Author: David Eugene LemmPublisher:
ISBN:
Category :
Languages : en
Pages : 296
Book Description
The Effect of Load Excursions on Fatigue Crack Growth in a Titanium Alloy
Author: David Eugene LemmLoad Interaction Effects on Fatigue Crack Growth in Ti-6Al-4V Alloy
Author: Fatigue Crack Growth Under Spectrum Loads
Author: Ralph Ivan StephensPublisher: ASTM International
ISBN:
Category : Alloys
Languages : en
Pages : 345
Book Description
Cyclic Stress-Strain and Plastic Deformation Aspects of Fatigue Crack Growth
Author: L. F. ImpellizzeriPublisher: ASTM International
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 242
Book Description
Mechanics of Fatigue Crack Closure
Author: Wolf ElberPublisher: ASTM International
ISBN: 0803109962
Category : Fracture mechanics
Languages : en
Pages : 671
Book Description
Advances in Fatigue Crack Closure Measurement and Analysis
Author: R. Craig McClungPublisher: ASTM International
ISBN: 0803126115
Category : Fracture mechanics
Languages : en
Pages : 487
Book Description
Fatigue Crack Propagation and Load Interaction Effects in a Titanium Alloy
Author: JM. LarsenPublisher:
ISBN:
Category : Crack closure
Languages : en
Pages : 13
Book Description
An experimental investigation of load interaction effects in Ti-6Al-2Sn-4Zn-2Mo is presented. Simple variable amplitude loading spectra were applied to test samples, and the crack propagation stress intensity factor, KPR, was subsequently measured. The data were condensed to two equations ("master curves") that describe the influence of an unloading cycle after constant amplitude loading and a single overload cycle, respectively. The results suggest that load interaction effects are caused by residual compressive stresses ahead of the crack front, whereas the influence of crack closure is minor.
The Effects of Slip Character and Crack Closure on the Growth of Small Fatigue Cracks in Titanium-aluminium Alloys
Author: James M. LarsenPublisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 286
Book Description
An investigation was performed to study the effects of slip character and crack closure on the propagation of small fatigue cracks in titanium- aluminum alloys. The materials examined were solution-treated Ti-4Al and Ti-8Al, as well as aged Ti-8Al. The propagation of naturally initiated surface cracks of depths as small as 25 micrometers was compared with the behavior of large through-thickness cracks. An extensometer was used to monitor crack closure throughout the large crack tests, and the closure behavior of the small cracks was measured using a computerized laser interferometric displacement gage having a displacement resolution of 0.01 micrometer. The measurements of crack closure were used to compute an effective stress intensity factor range. In all three alloys and for all test conditions, which included a range of stress levels and stress ratios, small cracks propagated faster than large cracks subjected to an equivalent Delta K, and the small cracks propagated under conditions that were significantly below the large-crack threshold, Delta K(th). Although the character and distribution of slip in Ti-Al alloys may have a dramatic influence on fatigue crack initiation and on the propagation of large cracks, this effect was minimal for small cracks.
Mechanical Behaviour of Materials V
Author: M. G. YanPublisher: Elsevier
ISBN: 1483294129
Category : Technology & Engineering
Languages : en
Pages : 1451
Book Description
Provides a thorough up-to-date account of the latest developments in materials science and engineering research and applications. The contributed papers cover all aspects of this important field, including material aspects of fracture in engineering practice, fatigue criteria and material characterisation, environmental effects on fracture, high temperature deformation and failure and mechanical properties and engineering applications of composite and non-metallic materials. Contains approximately 200 papers from acknowledged experts.
Author: