Results 71 to 80 of about 301 (157)
Review of Materials ResearchThis overview critically instructs the emerging, but less explored, field of environment-dependent very high cycle fatigue (VHCF) in metal additive manufacturing (AM). As AM technologies are increasingly adopted for structural applications, understanding
Meysam Haghshenas
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VHCF response of as‐built SLM AlSi10Mg specimens with large loaded volume
Fatigue & Fracture of Engineering Materials & Structures, 2018 AbstractIt is well known in the literature that fatigue is particularly critical for Additive Manufacturing (AM) parts, because internal defects originating during the AM process represent a critical site for crack initiation. In the literature, the High‐Cycle‐Fatigue (HCF) response of AM parts has been extensively investigated; however, there are few ...
A. Tridello +7 more
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VHCF Response of AISI H13 Steel: assessment of Size Effects through Gaussian Specimens
Procedia Engineering, 2015 AbstractThe paper aims at assessing the influence of the Size-Effect (SE) parameter on the VHCF response of the AISI H13 steel. Ultrasonic tests were performed on Gaussian and hourglass specimens characterized by different risk-volumes (volume of material subjected to an almost uniform stress amplitude).
TRIDELLO, ANDREA +3 more
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Applied SciencesThe engineering application of additively manufactured (AM) metallic materials is quite limited by their fatigue behaviors, which are very inconsistent with that of conventionally wrought or cast ones.
Lu Liu, Shengnan Wang, Gang Li, Yifan Ma
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Energy dissipation in copper during VHCF loading
, 2011 This communication is dedicated to the presentation of an experimental setup developed to estimate the energy dissipated during high cycle fatigue tests (VHCF). VHCF tests are performed at very low stress ranges, generally under the conventional fatigue strength.
Blanche, Antoine +3 more
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CrystalsAdditive manufacturing (AM) or 3D printing is a promising industrial technology that enables rapid prototyping of complex configurations. Powder Bed Fusion (PBF) is one of the most popular AM techniques for metallic materials.
Chun Gao +5 more
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Variations of VHCF Characteristics by Microstructure of a Spring Steel to UNSM Treatment
한국해양공학회지The bainitic structure resulting from the austempering of spring steel exhibits high strength and ductility. On the other hand, there appears to be no study on the effects of very high cycle fatigue (VHCF) and ultrasonic nanocrystal surface modification (
Seung-Hoon Nahm +2 more
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VHCF-Verhalten des hochfesten Stahls 100Cr6: Rissinitiierungsmechanismen und Schwellenwerte [PDF]
, 2020 Das Ermüdungsverhalten hochfester Stähle wird durch nichtmetallische Einschlüsse im Werkstoff bestimmt, die unter zyklischer Beanspruchung zu Rissinitiierung führen. Bisher noch nicht vollständig verstandene Ermüdungsvorgänge führen auch noch bei sehr hohen Lastspielzahlen über 10^7 Zyklen zu Versagen (Very high cycle fatigue - VHCF) und somit zum ...
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Guided bending experiment for the characterisation of CFRP in VHCF-loading
Polymer Testing, 2016 Abstract The effective experimental characterisation of the damage and failure behaviour of polymer based composites under VHCF-loading depends directly on the development of reliable accelerated fatigue test methods. Here, a guided-bending fatigue experiment in forced excitation is proposed.
I. Koch +4 more
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Very High Cycle Fatigue Life of Free-Spanning Subsea Pipeline Subjected to Vortex-Induced Vibrations
Journal of Marine Science and EngineeringFree-spanning subsea pipelines subjected to vortex-induced vibrations (VIVs) are particularly prone to fatigue failure. Existing flume observations indicated that the VIVs of a near-bed cylinder may be triggered effectively in moderate shear flows.
Qingyuan Song, Jun Liu, Fuping Gao
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