Results 231 to 240 of about 103,020 (264)
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Optimal Shape of Thin Tensile Test Specimen
Journal of the American Ceramic Society, 2007A tensile test method involving shape optimization of a thin, planar specimen has been developed. The purpose was to reduce the stress concentration in the transition zone between a straight‐sided zone and a wider‐end zone. Three designs of specimen, including an ISO standard design, were investigated based on finite element ...
Klemensø, T. +2 more
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Fundamental problem in optimizing the biaxial testing specimen
Science China Technological Sciences, 2019Most of the elements in structural design are subjected to the complex loading conditions that need to be predicted in advance for a reliable design. The failure prediction of these structural elements is based on the failure theories that employ the experimental data of the uniaxial, the biaxial and the shear tests.
Haroon Imtiaz +3 more
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Is There An Optimal Gauge Length for Dynamic Tensile Specimens?
Experimental Mechanics, 2014This paper addresses the issue of the dynamic tensile specimen gauge length through an experimental-numerical approach. Emphasis is put on the combined issue of specimen equilibrium and uniformity of the stress and the strain fields in the gauge. The systematic comparison of long and short specimens reveals the unexpected, namely the superiority of the
Y. Rotbaum, D. Rittel
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Optimal design of biaxial tensile cruciform specimens
Journal of the Mechanics and Physics of Solids, 1993Abstract F or experimental investigations concerning the mechanical behaviour under biaxial stress states of rolled sheet metals, mostly cruciform flat specimens are used. By means of empirical methods, different specimen geometries have been proposed in the literature. In order to evaluate the suitability of a specimen design, a mathematically well
S. Demmerle, J.P. Boehler
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In situ hybridization: optimization of the techniques for collecting and fixing the specimens
Liver, 1992Abstract: An overview is presented concerning the different protocols for collecting and fixing the specimens for in situ hybridization analysis. Particular attention is devoted to the problem of avoiding the tissue RNA degradation due to the ubiquitous and rather resistant RNases.
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Optimal Recovery of Cytomegalovirus from Urine as a Function of Specimen Preparation
Diagnostic Microbiology and Infectious Disease, 1998Cytomegalovirus (CMV) is a significant pathogen among immunocompromised patients. We compared supernatant and sediment fractions of centrifuged urine for the optimal recovery of CMV by shell vial culture and polymerase chain reaction (PCR). Of 336 urine specimens, 31 (9.23%) were positive by shell vial culture; of these 29 (93.5%) were identified using
D W, Bennion +4 more
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The Optimal Number of Pleural Biopsy Specimens for a Diagnosis of Tuberculous Pleurisy
Chest, 1997To determine the optimal number of pleural biopsy (PLBX) specimens for a diagnosis of tuberculous pleurisy.Retrospective review.County hospital.We reviewed all percutaneous needle biopsy specimens of the parietal pleura in 30 patients who had tuberculous pleurisy.
C M, Kirsch +5 more
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Optimization of specimen preparation of thin cell section for AFM observation
Ultramicroscopy, 2008High resolution imaging of intracellular structures of ultrathin cell section samples is critical to the performance of precise manipulation by atomic force microscopy (AFM). Here, we test the effect of multiple factors during section sample preparation on the quality of the AFM image.
Xinhui, Li +3 more
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The specimen optimization for the equibiaxial test of elastomers
2011Elastomers have an important role in a many engineering applications today [1]. A need of exact description of their mechanical properties rises still more often. Therefore it is not enough to test these materials only in uniaxial tension test, but for complete characterization of them it is necessary to test elastomers in other deformation modes, as ...
Javořík, Jakub, Maňas, David
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Mechanical Characterization of SLM Specimens with Speckle Interferometry and Numerical Optimization
2011This paper describes the process of mechanical characterization of specimens built via Selective Laser Melting (SLM). An hybrid approach based on the combination of phase-shifting electronic speckle pattern interferometry (PS-ESPI) and finite element analysis is utilized. Three-point-bending experimental tests are carried out.
Barile, C +3 more
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