Results 241 to 250 of about 47,467 (286)

Negative Poisson's ratio in graphene oxide

Nanoscale, 2017
We perform molecular dynamics simulations to investigate the Poisson's ratio of graphene oxide. We find that the Poisson's ratio can be effectively tuned by increasing the degree of oxidation of graphene oxide. More specifically, the Poisson's ratio decreases linearly from positive to negative with increasing oxidation, turning negative at room ...
Jing Wan, Jin-Wu Jiang, Harold S. Park
openaire   +2 more sources

Poisson's ratio for piezoceramics

10th International Conference on European Frequency and Time, 1996
Poisson's ratios, with respect to rotated coordinate axes, for hexagonal materials, and particularly, poled ferroelectric ceramics, have been obtained. Formulae are given for ceramics of arbitrary orientation and electrical immittance boundary conditions. A number of simple cases are obtained for open-circuit boundary conditions.
openaire   +1 more source

Dynamic Poisson ratio analysis

2011
The dynamic Poisson ratio is a complex calculation parameter mainly considering the standard existing equipment in some Geotechnical laboratories. Nevertheless, this dynamic property can be easily calculated through a simple relationship – based on the theory of elasticity – between the propagation velocities of two distinct elastic
Amaral M.F., Viana da Fonseca A., Carvalho J., Consoli N.C.   +3 more
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AVO and Poisson's ratio

The Leading Edge, 2003
It remains disturbing that AVO analysts still cling to the term Poisson's ratio (see e.g., Dutta, TLE February 2002).
openaire   +1 more source

Poisson's ratio for polycrystals

Journal of Physics and Chemistry of Solids, 1972
Abstract Accepted views concerning Poisson's ratio for central-force polycrystals are amended. For pulycrystals the ratio can vary from 1/4, which is actually a lower limit. An upper limit of Poisson's ratio exists also. Both limits can be calculated from single-crystal elastic data.
openaire   +1 more source

Manipulation of Poisson’s Ratio

1999
Poisson’s ratio is the ratio of the transverse compressive strain in a material to the applied longitudinal tensile strain. Alternatively, it may be described as related to the principal off-diagonal element of the elastic stiffness matrix. It is a fundamental property that affects most aspects of the mechanical properties of materials including ...
openaire   +1 more source

Measurement of Poisson’s Ratio

1999
Poisson’s ratio is defined as $${v_{xy}} = \frac{{ - {\varepsilon _y}}}{{{\varepsilon _x}}}$$ (1)
openaire   +1 more source

Effects of nurse-to-patient ratio legislation on nurse staffing and patient mortality, readmissions, and length of stay: a prospective study in a panel of hospitals

Lancet, The, 2021
Matthew D Mchugh, Linda H Aiken, Carol A Windsor   +2 more
exaly  

Poisson’s Ratio and Incompressibility

Journal of Biomechanical Engineering, 1983
openaire   +2 more sources

Negative Poisson's Ratio Materials

Science, 1987
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