Results 241 to 250 of about 5,211,707 (295)
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Journal of Testing and Evaluation, 1991
Abstract This work is the third in a series of seven monographs on the Characterization of High Temperature Materials under the general editorship of M. McLean. Prior volumes related to microstructural and chemical characterization. The present volume represents the proceedings of a December 1988 seminar, sponsored and organized by the ...
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Abstract This work is the third in a series of seven monographs on the Characterization of High Temperature Materials under the general editorship of M. McLean. Prior volumes related to microstructural and chemical characterization. The present volume represents the proceedings of a December 1988 seminar, sponsored and organized by the ...
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Mechanical Testing of Epiphysiodesis Screws
Orthopedics, 2018Epiphysiodesis is performed to treat leg-length discrepancies and angular deformities in children. However, when placed across a physis to modulate growth, screws can bend or break postoperatively. This study evaluated the mechanical properties of 3 different screw designs commonly used when performing an epiphysiodesis.
Brett M, Normandin +4 more
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Mechanical testing of urinary calculi
World Journal of Urology, 1993The ability to predict how easily a stone will break in response to extracorporeal and intracorporeal lithotripsy would be advantageous for the urologist. In a study of fragments from 52 urinary calculi, in vitro microhardness results were found to increase for the series struvite to brushite.
N P, Cohen, H N, Whitfield
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2005
Abstract Mechanical tests are performed to evaluate the durability of gears under load. The chapter first discusses the processes involved in the computations of stress for test parameters of gear. Next, the chapter reviews the four areas of specimen characterization of a test program, namely dimensional, surface finish texture ...
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Abstract Mechanical tests are performed to evaluate the durability of gears under load. The chapter first discusses the processes involved in the computations of stress for test parameters of gear. Next, the chapter reviews the four areas of specimen characterization of a test program, namely dimensional, surface finish texture ...
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Mechanical Testing in Unsaturated Soils
Geotechnical and Geological Engineering, 2008The state-of-the-art report presented herein is aimed at documenting, to the largest extent possible, some of the recent advances in laboratory testing of unsaturated soils for stress–strain–strength–stiffness characterization under suction-controlled isotropic, axisymmetric, and true triaxial stress states.
Hoyos, Laureano +2 more
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Verification tests in solid mechanics
Engineering with Computers, 2013Code verification against analytical solutions is a prerequisite to code validation against experimental data. Though solid-mechanics codes have established basic verification standards such as patch tests and convergence tests, few (if any) similar standards exist for testing solid-mechanics constitutive models under nontrivial massive deformations ...
K. Kamojjala +3 more
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The mechanical testing of bone in bending
Journal of Biomechanics, 1973Abstract A method is described of calculating the bending moment at failure and the modulus of elasticity in bending of bone when the stress-strain curves for tension and compression are given. Cortical bone specimens were tested in tension, compression and three point bending and the results compared with the formulae developed.
A, Simkin, G, Robin
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Mechanical testing of intraocular lenses
American Intra-Ocular Implant Society Journal, 1981Abstract Analytical techniques and test equipment are being developed which quantitatively measure the biomechanical properties of an intraocular lens when subjected to external forces similar to those present when confined or implanted. Data generated from these tests are useful in selecting materials and arriving at design configurations for ...
W B, Isaacson, B, Christie
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Mechanical Testing of Spinal Instrumentation
Clinical Orthopaedics and Related Research, 1988Clinically, implant failure is often the result of fatigue from continuous cyclic loading. Because of the inadequacies of long-run cyclic testing, fatigue susceptibility of implants was investigated by means of strain measurements and stress analysis under physiologic loads. The implants were equipped with strain gauges during load-deformation testing,
R B, Ashman +7 more
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1998
Abstract This article reviews the various types of mechanical testing methods, including hardness testing; tension testing; compression testing; dynamic fracture testing; fracture toughness testing; fatigue life testing; fatigue crack growth testing; and creep, stress-rupture, and stress-relaxation testing. Shear testing, torsion testing,
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Abstract This article reviews the various types of mechanical testing methods, including hardness testing; tension testing; compression testing; dynamic fracture testing; fracture toughness testing; fatigue life testing; fatigue crack growth testing; and creep, stress-rupture, and stress-relaxation testing. Shear testing, torsion testing,
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