Results 261 to 270 of about 347,005 (294)
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Bulk‐ and shear‐loss modulus defects in over‐pressured siliciclastic rocks
SEG Technical Program Expanded Abstracts 2001, 2001Summary The attenuation mechanisms affecting compressional- and shear-wave propagation at reservoir pressures were studied using a suite of overpressured siliciclastic rocks. A strong link was observed between the petrophysical characteristics of the material, the effective pressure and the wave attenuation mechanism.
Patricia R. Domnesteanu, Clive McCann
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Determination of the dynamic shear modulus and loss factor of rubber
The Journal of the Acoustical Society of America, 1980We have recently developed a new resonance theory for the scattering of compressional waves by fluid-filled spherical cavities in viscoelastic materials, and have applied it to the study of the resonance frequencies and widths of peaks in the (monopole) f0pp scattering amplitude.
G. Gaunaurd +2 more
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Influence of pendant chains on the loss modulus of model networks
Macromolecules, 1984Modification de la composante perte du module de cisaillement au cours de la reticulation de polydimethylsiloxane termine par un groupe ...
Miguel A. Bibbo, Enrique M. Valles
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Analysis of creep and modulus loss of the wood cell wall
Acta Mechanica, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pan, Yihui, Zhong, Zheng
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Specific Features of Strain Dependences of Loss Modulus in Highly Stretched Elastomers
Macromolecular Theory and Simulations, 2012AbstractThe loss modulus E″ in elastomer strips stretched by a factor of λ is studied theoretically. A small oscillating deformation is applied to these strips in the transition frequency zone between the glassy and rubbery states. The range of λ under study ranges up to ultimate extensions close to fracture.
Igor P. Borodin +2 more
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Journal of Applied Polymer Science, 1986
AbstractThe effects of temperature, molecular weight and its distribution, side chain branching, and the structure of polymers on the elastic behavior of bulk homopolymers were investigated, by using logarithmic plots of first normal stress difference (N1) against shear stress (σ12) and logarithmic plots of storage modulus (G′) against loss modulus (G″)
Chang Dae Han, Myung S. Jhon
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AbstractThe effects of temperature, molecular weight and its distribution, side chain branching, and the structure of polymers on the elastic behavior of bulk homopolymers were investigated, by using logarithmic plots of first normal stress difference (N1) against shear stress (σ12) and logarithmic plots of storage modulus (G′) against loss modulus (G″)
Chang Dae Han, Myung S. Jhon
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Simple method for determining the critical molecular weight from the loss modulus
Journal of Polymer Science Part B: Polymer Physics, 2004AbstractThe normal concept is that the critical molecular weight (MC) is about twice as large as the entanglement molecular weight (Me). However, experimental data have shown considerable deviations from MC ≈ 2Me. Furthermore, a determination of MC requires samples with a wide range of molecular weights, including weights lower than MC and higher than ...
Kwang Soo Cho +2 more
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Detection of hypercoagulability by the measurement of the dynamic loss modulus of clotting blood
Thrombosis Research, 1982The dynamic loss modulus of clotting whole blood was measured in thrombotic patients to characterize the physical properties of coagulation in the hypercoagulable state. The dynamic loss modulus was measured by a Sonoclot. Thrombotic patients consisted of 30 with deep vein thrombosis and 25 with arterial thrombosis. An accelerated increment rate of the
K, Sugiura +4 more
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Analysis of polyetheretherketone fatigue properties using dynamic modulus and hysteresis loss
AIP Conference Proceedings, 2022A. Bogdanov +4 more
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Young's Modulus and Mechanical Loss in PZT Ceramics Associated with Phase Transitions
1997In piezoelectric ceramic lead zirconate titanate (PZT) dielectric loss and mechanical loss are coupled. So, in PZT ceramics used as power transducers, the high mechanical lossresults in an increasing of the temperature which contributes to reducing the intensity of polarization.
BL Cheng, M Gabbay, G Fantozzi
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