Results 251 to 260 of about 4,292,659 (294)
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The small ball punch test at FZJ
Journal of Nuclear Materials, 2008Abstract The next generation of nuclear power reactors and neutron sources, together with the test devices for the fusion program, will pose an unprecedented severity of the environment for structural components near the irradiation sources. Therefore there is a need for material development and testing in the anticipated conditions and a number of ...
D. Finarelli, F. Carsughi, P. Jung
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The Use of Small Punches in Hair‐Transplant Surgery
The Journal of Dermatologic Surgery and Oncology, 1980Standard‐sized punches used in hair transplantation are between 3.5 and 4.5 mm in diameter. Much smaller punches of 1.5, 2.0, and 2.5 mm in diameter are more useful to fill in small gaps in frontal rows on the scalp. A patient is described and illustrated in whom a poorly fashioned hairline was corrected by the use of the smaller punches to obtain and ...
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Small Punch Testing in Creep Conditions
Journal of Testing and Evaluation, 2001Abstract The creep behavior of low-alloy steel was studied using small punch tests under the action of constant force. Disks with a diameter of 8 mm and a thickness of 0.5 mm were pushed against a die with a bore of 4 mm diameter using a ball of 2.5 mm diameter. The time dependence of the central deflection was registered.
F Dobeš, K Milička
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Impact of punching on a small induction motor
2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC), 2015This article deals with impact of punching processes on a small induction motor performance. Attempt to estimate shape of BH curve in areas damaged by punching is present here. To the estimation, simulations by the finite elements method together with laboratory measurement are used.
M. Mach, V. Hajek
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Characterization of PEEK biomaterials using the small punch test
Journal of the Mechanical Behavior of Biomedical Materials, 2011The small punch test is widely used to characterize the ductility and fracture resistance in metals and ceramics, when only a small volume of material is available. This study was conducted to investigate the suitability of the small punch test for characterizing polyetheretherketone (PEEK) polymeric biomaterials for changes in material grade ...
David J, Jaekel +2 more
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FEM Analysis of Small Punch Tests
Key Engineering Materials, 2017In recent years the small punch test method has become an attractive alternative compared to traditional material testing procedures, especially in cases where only small amounts of material are available. In contrast to standard test methods, the relevant material parameters can not be as simply obtained from the experimental measurements of SPTs ...
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On the Correlation of Fracture Quantities in Small Punch Test
Key Engineering Materials, 2013Several possible routes are available for estimation of fracture behaviour from the results of small punch tests performed at constant rate of deflection. The routes include: (i) measurement of relevant dimensions directly on ruptured specimens, (ii) determination of critical deflections on the load vs.
Ferdinand Dobeš, Petr Dymáček
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Characterisation of Mechanical Properties by Small Punch Test
Key Engineering Materials, 2014The specific desired properties for structures and components working in critical environments (e.g. different structure parts of power plants) require current information about degradation processes coming out in materials. Obtaining of this information by the help of the classical tests of mechanical properties (tensile test, Charpy test, fracture ...
Jan Siegl +4 more
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Applications of small punch test
METAL Conference Proeedings, 2023Jan KANDER +3 more
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Small Punch Testing on High Chromium Steels
Volume 6B: Materials and Fabrication, 2016The Small Punch test is a miniaturized non-intrusive methodology that allows performing creep tests using very small specimens. It can be used for the residual lifetime assessment of in service components. In the last years, numerous applications of Small Punch Testing as well as related pre-normative work and Round Robin exercises have ...
Andrea Tonti +6 more
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