Results 211 to 220 of about 382,947 (255)

Dependence of magnitude statistics on strain rate

Bulletin of the Seismological Society of America, 1976
Abstract Magnitude statistics (log N = a − bM) were measured for mine tremors and for the Parkfield earthquakes, listed by McEvilly, Bakun and Casaday (1967), in conditions of varying rates of aseismic ground deformation. Aseismic deformation rates were estimated using a tiltmeter in the ERPM gold mine and using results from small ...
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Stress State and Strain Rate Dependence of the Human Placenta

Annals of Biomedical Engineering, 2012
Maternal trauma (MT) in automotive collisions is a source of injury, morbidity, and mortality for both mothers and fetuses. The primary associated pathology is placental abruption in which the placenta detaches from the uterus leading to hemorrhaging and termination of pregnancy. In this study, we focused on the differences in placental tissue response
Benjamin C, Weed, Ali, Borazjani, Sourav S, Patnaik, R, Prabhu, M F, Horstemeyer, Peter L, Ryan, Thomas, Franz, Lakiesha N, Williams, Jun, Liao   +8 more
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A strain-rate dependent crack model

Journal of the Mechanics and Physics of Solids, 1971
Abstract A uniformly moving crack, preceded by a thin plastic zone, in which the yield stress is linearly dependent on the strain rate, is considered, in both plane and anti-plane strain. This model is used to calculate the variation of the stress intensity factor with crack velocity in the limit of small-scale yielding and the unsteady motion of a
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Strain rate dependent properties of human craniovertebral ligaments

Journal of the Mechanical Behavior of Biomedical Materials, 2013
Craniovertebral ligaments were tested to failure under tensile loading. Ligaments tested included: transverse ligament, anterior atlanto occipital membrane, posterior atlanto occipital membrane, capsular ligaments between Skull-C1 and C1-C2, anterior atlantoaxial membrane, posterior atlantoaxial membrane and the tectorial membrane/vertical cruciate ...
Stephen F E, Mattucci, Jeffrey A, Moulton, Naveen, Chandrashekar, Duane S, Cronin   +3 more
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Rate‐ and temperature‐dependent strain softening in solid polymers

Journal of Polymer Science Part B: Polymer Physics, 2012
AbstractIt is demonstrated that a large number of solid polymers (PMMA, PLLA, iPP, PS) display a pronounced change in kinetics (strain‐rate and temperature dependence) after yield. The phenomenon finds its origin in the fact that, in specific ranges of temperature and strain rate, two different molecular processes may contribute to the yield stress ...
Breemen, van, L.C.A., Engels, T.A.P., Klompen, E.T.J., Senden, D.J.A., Govaert, L.E.   +4 more
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Temperature-dependent strain rate discontinuity

Materials Science and Engineering: A, 1988
Abstract Measurement of strain rate discontinuity in several materials, at and below room temperature, confirms the general occurrence of athermal (stress rate dependent) inelastic strain. Values of both thermal (stress dependent) and athermal strain rate have been measured.
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Method and strain rate dependence of Achilles tendon stiffness

Journal of Electromyography and Kinesiology, 2012
Tendon stiffness is calculated by dividing changes in tendon force by tendon elongation. For this purpose, participants are commonly asked to perform a maximal muscle contraction ("active" method). Alternatively tendon elongation can be achieved by means of a passive joint rotation ("passive" method).
Nicola, Theis, Amir A, Mohagheghi, Thomas, Korff   +2 more
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Strain Rate Dependent Shear Plasticity in Graphite Oxide

Nano Letters, 2016
Graphene oxide film is made of stacked graphene layers with chemical functionalities, and we report that plasticity in the film can be engineered by strain rate tuning. The deformation behavior and plasticity of such functionalized layered systems is dominated by shear slip between individual layers and interaction between functional groups.
Soumya, Vinod, Chandra Sekhar, Tiwary, Leonardo D, Machado, Sehmus, Ozden, Juny, Cho, Preston, Shaw, Robert, Vajtai, Douglas S, Galvão, Pulickel M, Ajayan   +8 more
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Significance of strain rate-dependence in modelling of organic materials

7th International Conference on Control, Automation, Robotics and Vision, 2002. ICARCV 2002., 2004
This paper explores the significance of the inherent strain rate-dependence of many biological materials. Such characteristics are pertinent to computational modelling of these materials for the purposes of surgical robotics and simulation. A pair of 2-dimensional finite element models of the human brain/ventricle system are developed and used to ...
Zeikc Taylor, Karol Miller
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Strain-rate Dependency of Axonal Tolerance for Uniaxial Stretching

SAE Technical Paper Series, 2017
This study aims to clarify the relation between axonal deformation and the onset of axonal injury. Firstly, to examine the influence of strain rate on the threshold for axonal injury, cultured neurons were subjected to 12 types of stretching (strains were 0.10, 0.15, and 0.20 and strain rates were 10, 30, 50, and 70 s-1).
Hiromichi, Nakadate, Evrim, Kurtoglu, Hidenori, Furukawa, Shoko, Oikawa, Shigeru, Aomura, Akira, Kakuta, Yasuhiro, Matsui   +6 more
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