Subsurface originated spalling has been recognized as one of the main modes of failure for rolling contact fatigue (RCF) of bearings. In the past few decades a significant number of investigators have attempted to determine the physical mechanisms involved in rolling contact fatigue of bearings and proposed models to predict their fatigue lives. Available online at sciencedirect ScienceDirectIt was concluded that manufacturing conditions have a significant effect on fatigue life of high strength steel welded joints. Travel speed and welding angle are critical.
Fatigue Performance of Additively Manufactured Stainless Steel 316L for Nuclear Applications William Beard1,a, Robert Lancaster1,b, Jack Adams2,c, Dane Buller2,d 1Institute of Structural Materials, College of Engineering, Bay Campus, Swansea University, Swansea, SA1 8EN, United Kingdom 2Rolls-Royce Submarines, P.O. Box 2000, Raynesway, Derby, DE21 7XX, United Kingdom Fatigue Properties of a ium Alloy (Ti-6Al-4V the as-built and stress-relieved conditions were statistically similar and were measured to be 200 MPa to 250 MPa. A significantly higher fatigue strength at 10 7 cycles of 550 MPa to 600 MPa was measured for the HIPed condition. The increase in fatigue endurance limit was attributed to a reduction in internal porosity and void content. KEYWORDS Fatigue Properties of a ium Alloy (Ti-6Al-4V the as-built and stress-relieved conditions were statistically similar and were measured to be 200 MPa to 250 MPa. A significantly higher fatigue strength at 10 7 cycles of 550 MPa to 600 MPa was measured for the HIPed condition. The increase in fatigue endurance limit was attributed to a reduction in internal porosity and void content. KEYWORDS
David B. Witkin, Dhruv Patel, Thomas V. Albright, Glenn E. Bean, Tait McLouth, Influence of Surface Conditions and Specimen Orientation on High Cycle Fatigue Properties of Inconel 718 Prepared by Laser Powder Bed Fusion, International Journal of Fatigue, GUIDE FOR MANAGING THE RISK OF FATIGUE AT WORK1.5 How can the risks of fatigue be managed at the workplace? Measures to manage the risks associated with fatigue will vary from one workplace to the next, depending on the nature of the work, environmental conditions and individual factors. The risks associated with fatigue can be managed by following a systematic process Influence of Residual Stresses Introduced by Manufacturing Apr 26, 2017 · The influence of the initial residual stress state on fatigue life was calculated using a model based on the approach of Ioannides and Harris. The resulting residual stresses after the manufacturing process and their changes during operation in a bearing test rig are discussed and compared to those of standard bearings.
Another important influence factor on fatigue damage is the anisotropy leading to very different fatigue behaviour of composites loaded in fibre direction, transverse to it or under combined loading [11,12]. Furthermore the fatigue damage of composites is strongly affected by the mean stress. Corresponding investigations can be found in . Influence of mode mixity and loading conditions on the Adhesive joints usually experience mixed mode and mostly cyclic stresses conditions during their service life. The aim of the current research is to investigate the fatigue behaviour of a structural epoxy adhesive. Pure modes I and II and mixed mode tests were carried out to study the fracture and fatigue crack growth (FCG) behaviour of the Manufacturing Influence on Fatigue Properties:Fatigue special issue manufacturing influence on fatigue properties Friction stir welds in aluminium:Design SN curves from statistical analysis of literature data E. Maggiolini
Mohamed Iben Houria, Yves Nadot, Raouf Fathallah, Matthew Roy, Daan M. Maijer, Influence of casting defect and SDAS on the multiaxial fatigue behaviour of A356-T6 alloy including mean stress effect, International Journal of Fatigue, 10.1016/j.ijfatigue.2015.05.012, 80, (90-102), (2015). The Dangers Of Fatigue In The Workplace - Manufacturing Dec 16, 2014 · 3 safety tips:Ergonomics best practices for manufacturing February 18, 2020 - 12:44 pm 3 training tips for giving an effective toolbox talk October 3, 2019 - 11:32 am Manufacturing The effect of inclusions on the hightemperature lowcycle Jun 15, 2018 · The presence of inclusions is a known source of crack initiation and component failure in cast materials. In this work, the role of inclusions is investigated via a combined program of hightemperature lowcycle fatigue testing and computational modelling of
Jul 01, 2020 · The influence of manufacturing porosity and lack of fusion defects on the fatigue resistance of SLM processed Ti-6Al-4V was investigated in detail. By using X-ray tomography, an accurate characterization of the defects was realized in terms of Towards a fundamental understanding of the effects of Jul 01, 2020 · 1. Introduction. There is strong evidence that surface conditions in as-built (AB) specimens have a considerable influence on the fatigue properties of Additive Manufactured (AM) materials , , , , .AB specimens are known to exhibit dramatic reductions of some 4050% of fatigue strength compared with those machined or polished , , , , .The most detrimental effect is attributed to Very high cycle fatigue and fatigue crack propagation The influence of processing parameters on the resulting part parameters and the corresponding fatigue behavior remains unaddressed. This study investigates the influence of base plate heating and post-process stress-relief on part properties like process-incited defects, which are critical for fatigue
The effect of manufacturing defects on the fatigue life of selective laser melted Ti-6Al-4V structures.pdf Available via license:CC BY-NC-ND Content may be subject to copyright.