Results 221 to 230 of about 136,068 (264)
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Fatigue notch sensitivity and the notch size effect
International Journal of Fatigue, 2008Abstract It has long been known that the fatigue notch factor KF, given by σw0/σw, where σw0 is smooth specimen fatigue strength (R = −1) and σw is the fatigue strength of a notch-containing specimen, is less than the theoretical stress concentration factor, KT.
A MCEVILY +4 more
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Effects of finite notch width on the fracture of chevron – notched specimens
International Journal of Fracture, 1998The chevron notched three-point bend test specimen is often used for measuring the fracture toughness of brittle materials such as ceramics. Specimen sizes are often very restricted when testing advanced materials due to limited volume of material available or high material costs.
Rajendra Kolhe +2 more
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Effect of notch dimension on the fatigue life of V-notched structure
Nuclear Engineering and Design, 2011Abstract The stress singularity degree associated to a V-notch has a great influence on the fatigue life of V-notched structure. The growth rate of the crack initiated at the tip of a V-notch depends on the stress singularity of the V-notch. The fatigue life accompanying with this small crack will represent a large amount of the total fatigue life ...
Cheng Chang-zheng +3 more
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Analysis of the Notch Effect in Fatigue
Journal of ASTM International, 2012Abstract The fatigue-crack propagation at stress concentrations is a topic of significant importance in a number of engineering applications. Further, it is recognized that the fatigue limit of notched components is dictated by the critical condition for either initiation or propagation of a small crack at the root of a notch.
K. Yanase, M. Endo
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Fatigue & Fracture of Engineering Materials & Structures, 1989
Abstract— The notch size effect (i.e. the decrease of the notched fatigue limit with increasing notch size for the same stress concentration factor) was quantitatively derived by describing the threshold conditions for the propagation of a short semi‐elliptical crack nucleated at the notch root.
P. Lukás +3 more
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Abstract— The notch size effect (i.e. the decrease of the notched fatigue limit with increasing notch size for the same stress concentration factor) was quantitatively derived by describing the threshold conditions for the propagation of a short semi‐elliptical crack nucleated at the notch root.
P. Lukás +3 more
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2006
Abstract This chapter describes how notches affect the load-carrying capacity and fatigue life of materials under cyclic loads. It explains that stresses and strains can be three to four times higher in the vicinity of a notch, greatly accelerating fatigue damage.
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Abstract This chapter describes how notches affect the load-carrying capacity and fatigue life of materials under cyclic loads. It explains that stresses and strains can be three to four times higher in the vicinity of a notch, greatly accelerating fatigue damage.
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IEEE Transactions on Biomedical Engineering, 2013
For hip resurfacing, this is the first biomechanical study to assess anterior and posterior femoral neck notching and femur flexion and extension. Forty-seven artificial femurs were implanted with the Birmingham hip resurfacing (BHR) using a range of notch sizes (0, 2, and 5 mm), notch locations (superior, anterior, and posterior), and femur ...
Zachary Morison +4 more
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For hip resurfacing, this is the first biomechanical study to assess anterior and posterior femoral neck notching and femur flexion and extension. Forty-seven artificial femurs were implanted with the Birmingham hip resurfacing (BHR) using a range of notch sizes (0, 2, and 5 mm), notch locations (superior, anterior, and posterior), and femur ...
Zachary Morison +4 more
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The effects of notch geometry on fatigue life using notch sensitivity factor
Transactions of the Indian Institute of Metals, 2010The notch sensitivity of a material is a measure of how sensitive a material is to notches or geometric discontinuities. Notch sensitivity is influenced by many parameters such as notch geometry. Three types of notch geometries, V-shape, U-shape and -shape notches of various sizes are considered in this investigation.
G. H. Majzoobi, N. Daemi
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Effect of notch on ductile fracture
International Journal of Fracture Mechanics, 1971The present work is an attempt towards a proper understanding of the fracture mechanics of ductile materials. Experiments were carried out to find the notch ductility of four materials: stainless steel, brass, copper, (all annealed) and mild steel (normalized). The crack propagation takes place when the strain just ahead of the crack reaches a critical
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