Download or read book On the Process of Subsurface Fatigue Crack Initiation in TI 6AL 4V written by James Alfred Ruppen and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On the Process of Subsurface Fatigue Crack Initiation in TI 6AL 4V written by James Alfred Ruppen and published by . This book was released on 1978 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Fatigue Crack Initiation and Propagation in Ti 6Al 4V with Electrical Potential Drop Technique written by and published by . This book was released on 1988 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fretting Fatigue Crack Initiation Behavior of Ti 6Al 4V written by SA. Namjoshi and published by . This book was released on 2003 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fretting fatigue crack initiation behavior of titanium alloy, Ti-6Al-4V was investigated by using different geometries of the fretting pad. Specimens were examined to determine the crack initiation location and the crack angle orientation along the contact surface. Fretting fatigue experiments were analyzed with the finite element analysis. Several critical plane based parameters were used to predict the number of cycles to fretting fatigue crack initiation, crack initiation location and crack orientation angle along the contact surface. These predictions were compared with the experimental counterparts to study the role of normal and shear stresses on the critical plane in order to characterize fretting fatigue crack initiation behavior. From these comparisons, the fretting fatigue crack initiation mechanism in the tested titanium alloy appears to be governed by the shear stress on the critical plane. However, the role of normal stress on the critical plane at present appears to be unclear.

Download or read book Fatigue strength and microscopic fatigue crack initiation in Ti 6Al 4V alloy written by Shinichi Nishida and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Observations on Stage 1 Fatigue Crack Initiation in Ti 6Al 4V and on the Synthesis of a High Fatigue Strength Microstructure in this Alloy written by C.A. Stubbington and published by . This book was released on 1973 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Observations on a Fracture Mechanics Approach to Fatigue Crack Initiation in Ti 6Al 4V written by LA. Cooley and published by . This book was released on 1985 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resistance to the initiation of fatigue cracks in Ti-6Al-4V has been determined from blunt-notched (keyhole) and sharp-notched (V) compact specimens of the WOL type. The primary alloy studied was in the mill-annealed condition with an ultimate tensile strength of 1034 MPa (150 ksi). In the case of the blunt-notched specimen, the notch root radius was ? = 1.59 mm (0.0625 in.); for the sharp-notched specimen, ? = 0.25 mm (0.010 in.). The influence of surface roughness, 0.4 ?m versus 1.8 ?m (16 ?in. versus 72 ?in.), on fatigue crack initiation resistance has also been examined. Notch root surfaces were specially prepared to remove all machining marks in the thickness direction. Specimens were cycled under constant load amplitude conditions in air with a stress ratio of R = 0.10. Cycles-to-initiation data normalize very well for the two specimen types when analyzed in terms of the ratio of stress intensity factor range to the square root of the notch root radius, ?K??. The fatigue crack initiation resistance also appears to be independent of surface roughness in the notch root region. Moreover, fatigue crack initiation resistance from these notched compact-type specimens is found to correlate well with fatigue strength determined from smooth, rotating beam specimens of this very same material. Finally, fatigue crack initiation resistance has been measured with the blunt notch compact specimen for a number of beta-annealed Ti-6Al-4V alloys with a broad range of oxygen contents (0.06 to 0.20 wt%). Though oxygen content can have a pronounced influence on fracture toughness, the present data do not indicate a significant influence of oxygen content on fatigue crack initiation resistance.

Download or read book Fatigue Mechanisms written by J. T. Fong and published by ASTM International. This book was released on 1979 with total page 913 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Crack Initiation and Small Crack Propagation in Additive Manufactured Ti 6Al 4V written by Muhammad Shamir and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Fatigue Crack Initiation and Propagation in Ti 6Al 4V with Electrical Potential Drop Technique written by Sreeramesh Kalluri and published by . This book was released on 1988 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Crack Propagation in Metals and Alloys written by Ulrich Krupp and published by John Wiley & Sons. This book was released on 2007-04-09 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Fracture Toughness Testing and Its Applications written by ASTM Committee E-24 Staff and published by ASTM International. This book was released on 1981-10 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fretting Fatigue Crack Nucleation Criterion for Ti 6Al 4V written by S. Mall and published by . This book was released on 2003 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fretting fatigue crack nucleation behavior in titanium alloy Ti-6A1-4V was investigated by using two contact configurations: cylinder or flat with rounded edge pad on flat substrate. Both experiments and finite element analyses were conducted. A muiltiaxial fatigue parameter involving shear stress and normal stress on the critical plane was examined about its capability to predict the number of cycles to fretting fatigue crack initiation, crack initiation location and crack orientation angle along the contact surface. Also, the effects of two factors, crack nucleation process volume and coefficient of friction, on predictions were investigated.

Download or read book Fatigue of Beta Processed and Beta Heat treated Titanium Alloys written by Russell Wanhill and published by Springer Science & Business Media. This book was released on 2011-10-28 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication reviews most of the available literature on the fatigue properties of β annealed Ti-6Al-4V and titanium alloys with similar microstructures. The focus is on β processed and β heat-treated alloys because β annealed Ti-6Al-4V has been selected for highly loaded and fatigue-critical structures, including the main wing-carry-through bulkheads and vertical tail stubs, of advanced high-performance military aircraft. An important aspect of the review is a concise survey of fatigue life assessment methods and the required types of fatigue data. This survey provides the background to recommendations for further research, especially on the fatigue behaviour of β annealed Ti-6Al-4V under realistic fatigue load histories, including the essential topic of short/small fatigue crack growth. Such research is required for independent fatigue life assessments that conform to the aircraft manufacturer’s design requirements, and also for life reassessments that most probably will have to be made during the service life of the aircraft.

Download or read book Fatigue Crack Propagation in Metals and Alloys written by Ulrich Krupp and published by John Wiley & Sons. This book was released on 2007-06-27 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Fatigue of Materials written by Subra Suresh and published by Cambridge University Press. This book was released on 1998-10-29 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a leading researcher in the field, this revised and updated second edition of a highly successful book provides an authoritative, comprehensive and unified treatment of the mechanics and micromechanisms of fatigue in metals, non-metals and composites. The author discusses the principles of cyclic deformation, crack initiation and crack growth by fatigue, covering both microscopic and continuum aspects. The book begins with discussions of cyclic deformation and fatigue crack initiation in monocrystalline and polycrystalline ductile alloys as well as in brittle and semi-/non-crystalline solids. Total life and damage-tolerant approaches are then introduced in metals, non-metals and composites followed by more advanced topics. The book includes an extensive bibliography and a problem set for each chapter, together with worked-out example problems and case studies. This will be an important reference for anyone studying fracture and fatigue in materials science and engineering, mechanical, civil, nuclear and aerospace engineering, and biomechanics.

Download or read book Proceedings of the 13th World Conference on Titanium written by Vasisht Venkatesh and published by John Wiley & Sons. This book was released on 2016-04-26 with total page 2004 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the Proceedings of the 13th World Conference on Titanium.