Results 141 to 150 of about 446,787 (190)

Determinants of left ventricular shear strain

American Journal of Physiology-Heart and Circulatory Physiology, 2009
Mathematical models of cardiac mechanics can potentially be used to relate abnormal cardiac deformation, as measured noninvasively by ultrasound strain rate imaging or magnetic resonance tagging (MRT), to the underlying pathology. However, with current models, the correct prediction of wall shear strain has proven to be difficult, even for the normal ...
Bovendeerd, P.H.M., Kroon, J.W., Delhaas, T.   +2 more
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Shear Properties of the Temporomandibular Joint Disc in Relation to Compressive and Shear Strain

Journal of Dental Research, 2004
Shear stress can result in fatigue, damage, and irreversible deformation of the temporomandibular joint disc. Insight into the dynamic shear properties of the disc may give insight into the mechanism inducing tissue failure due to shear. We tested the hypothesis that the dynamic shear properties of the disc depend on the amount of shear and ...
Tanaka, E., Kawai, N., Hanaoka, K., van Eijden, T.M.G.J., Sasaki, A., Aoyama, J., Tanaka, M., Tanne, K.   +7 more
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P1C-5 Shear Strain Imaging with Shear Deformation

2006 IEEE Ultrasonics Symposium, 2006
In this paper we investigate the generation of shear strain elastograms induced using a lateral shear deformation. Simulation and experimental results demonstrate that the shear strain elastograms obtained under shear deformation exhibit significant differences between bounded and unbounded inclusion phantoms, when compared to shear strain images ...
T. Varghese, M. Rao, E. L. Madsen
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Maximum entropy and shear strain of shear zone

Mathematical Geology, 1992
The principle of maximum entropy can be used to determine the shear strain in natural shear zones. When the margin of a shear zone is assumed, the principle leads to the truncated exponential distribution of the shear strain. Ifx is the distance remote from the shear zone center, which possesses the maximum shear strain, the shear strain γ (x) is given
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The Importance of Signs of Shear Stress and Shear Strain in Composites

Journal of Composite Materials, 1969
The definition and physical significance of the sign conventions for stress and strain components, in particular, shear stress and shear strain, are of vital importance in studying the response of anisotropic composite materials. Designers and analysts who must predict the strength and stiffness characteristics of laminated systems should be ...
N.J. Pagano, P.C. Chou
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The Role of Shear Stress and Shear Strain in Pressure Injury Development

Advances in Skin & Wound Care
ABSTRACT Although other patient safety indicators have seen a decline, pressure injury (PI) incidence has continued to rise. In this article, the authors discuss the role of shear stress and shear strain in PI development and describe how accurate assessment and management can reduce PI risk.
Caroline, Portoghese, Michelle, Deppisch, Sharon, Sonenblum, Barbara, Samson, Cassendra, Munro, Virginia, Capasso, Evan, Call, Joyce, Black, David, Brienza   +8 more
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Strain variation in shear belts

Canadian Journal of Earth Sciences, 1970
In rocks deformed by natural orogenic processes it is usual to find that the finite strain state varies from locality to locality. In some deformed rocks high strain states are localized within approximately planar zones commonly known as "shear belts".The general relationships that exist between variable displacement and variable strain state are ...
J. G. Ramsay, R. H. Graham
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Relationship between limiting shear strain and reduction of shear moduli due to liquefaction in large strain torsional shear tests

Soil Dynamics and Earthquake Engineering, 2013
Abstract With the spread of performance-based design concepts in geotechnical earthquake engineering, conducting a practical and accurate analysis for estimating the liquefaction-induced ground deformation has become important. However, there is a difficulty in setting relevant parameters of liquefied soil that would be employed in the analysis ...
Takashi Kiyota, Junichi Koseki, Takeshi Sato   +2 more
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Shear Strains, Strain Rates and Temperature Changes in Adiabatic Shear Bands

1981
Experiments were conducted to determine the shear strains and strain rates in adiabatic shear bands in a Ni-Cr steel. An explosively driven punch was used to shear plugs from steel plates and, thereby, create adiabatic shear bands for investigation.
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Heterogeneous shear zone evolution: The role of shear strain hardening/softening

Journal of Structural Geology, 2008
Mathematical models are proposed to describe heterogeneous shear zones characterized by variation thickness with time. These models take into account several combinations of deformation type regime (simultaneous simple shear, pure shear, and volume change) and degree of strain localization.
VITALE, STEFANO, MAZZOLI, STEFANO
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