Results 141 to 150 of about 595,772 (196)

Dynamic mechanical properties of an inlay composite

Journal of Dentistry, 1989
A visible light-cured composite resin (Brilliant DI) has been studied over a wide range of temperature and frequency by a dynamic mechanical flexural method. The derived data of logarithmic modulus and loss tangent (tan delta) show considerable changes following a secondary-cure process applied to the material. This involved the application of heat and
P, Dionysopoulos, D C, Watts
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Dynamic Mechanical Properties of Polyoxymethylene III

Japanese Journal of Applied Physics, 1967
Dynamic mechanical measurements of a drawn polyoxymethylene are performed by a torsion pendulum apparatus over a frequency range of 1.0 to 0.005 Hz at various temperatures in the α-dispersion range. Real and imaginary parts of complex rigidity are measured on each of the specimens cut out from the drawn sample at various angles with the draw ...
Kyosuke Miki, Kunio Hikichi, Motozo Kaneko   +2 more
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Dynamic-mechanical Properties

1989
Knowledge of dynamic-mechanical properties is essential for the design of engineering components, such as antivibration mounts and sound-deadening devices. In addition, studies of these properties have added greatly to the understanding of molecular mobility in polymers.
Per Gradin, Paul G. Howgate, Ragnar Seldén, Richard A. Brown   +3 more
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Dynamic Mechanical Properties

2013
Studying the influence of temperature and loading frequency on the behavior of syntactic foams is important because of its diverse set of applications. Dynamic mechanical analysis (DMA) is a widely used technique for measuring viscoelastic properties of materials over a range of temperatures and loading frequencies. The storage modulus and loss modulus
Nikhil Gupta, Dinesh Pinisetty, Vasanth Chakravarthy Shunmugasamy   +2 more
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Dynamic Mechanical Properties of Sugarcane

Advanced Materials Research, 2013
New design of a sugarcane shredder is being performed within a research project. This kind of equipment used to be traditionally designed on the basis experiences up to recent time. With increasing demand for the material economic utilization and reliable service, new material optimized design of shredders is required.
Jan Džugan, Martina Maresova, Pavel Podany   +2 more
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A model for the dynamic mechanical properties of arteries

Journal of Biomechanics, 1972
Abstract A phenomenological model is used to represent the frequency dependence of the mechanical properties of arteries. The model was tested on mechanical properties data derived from simultaneous measurements of intra-arterial pressure and external diameter from surgically exposed femoral arteries of anesthetized dogs.
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Dynamic Mechanical Properties of Polyisobutylene

Journal of Applied Physics, 1953
Values of complex shear compliance (and rigidity) have been obtained for a sample of polyisobutylene of viscosity-average molecular weight 1.35×106 at 22 temperatures from −45 to 100°C and at about 20 frequencies from 30 to 5000 cps. Measurements were made by means of the transducer method of Fitzgerald and Ferry with a precision of ±2 percent and are ...
Edwin R. Fitzgerald, Lester D. Grandine, John D. Ferry   +2 more
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Dynamic mechanical properties of polymers

Journal of Applied Polymer Science, 1969
AbstractA technique, employing samples in the form of tuning forks, to measure the mechanical properties of polymers is presented. Results for low density polyethylene, polypropylene, and polycarbonates are shown. A large transition is observed for polypropylene at approximately +10°C and a small transition at −100°C for the polycarbonates ...
D. G. Legrand, P. F. Erhardt
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Dynamic Mechanical Properties of Mechanically Deformed Filaments

Textile Research Journal, 1985
The effect of mechanical deformation on filament structure has been evaluated using a viscoelastometer. As a result of cyclic twisting, or torsional deformation, the fiber structure tends to disorient and behave more like an amorphous system where the loss factor (tan δ) increases as deformation cycles increase.
R.S. Chauhan, N.E. Dweltz
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Dynamic Mechanical Properties of Porcine Lacrimal Canaliculus

Current Eye Research, 2007
To better understand the mechanisms of tear drainage, the mechanical properties of porcine canaliculus were measured in compression mode while submerged in isotonic fluid by using a dynamic mechanical analyzer. The storage modulus (E') for the porcine canaliculus is about 3 kPa at 1 Hz and increases to about 5 kPa at 25 Hz.
Heng, Zhu, Subir, Bhatia, Anuj, Chauhan
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