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strain |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.04 sec. |
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strain: see strength of materials strength of materials, measurement in engineering of the capacity of metal, wood, concrete, and other materials to withstand stress and strain. Stress is the internal force exerted by one part of an elastic body upon the adjoining part, and strain is the deformation ..... Click the link for more information. . strainIn the physical sciences and engineering, a number that describes the relative deformation of elastic, plastic, and fluid materials under applied forces. It arises throughout the material as the particles of the material are displaced from their usual position. Normal strain is caused by forces perpendicular to planes or cross sections of the material, such as in a volume that is under pressure on all sides. Shear strain is caused by forces that are parallel to, and lie in, planes or cross sections, such as in a short metal tube that is twisted about its longitudinal axis. See also deformation and flow. |
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| Programs include EC 01 Hardness for hardness and change in hardness; EC 02 Thickness for thickness and compression set; EC 03 Balance for density, weight, weight change and volume change; EC 04 Creep for creep curve, creep tensile strain and creep modulus; and EC 05 Relaxation for continuous measurement of relaxation, linear and logarithmic relaxation graphs, as well as F/[F. But tensile strain may not benefit P-type devices as much, and it may even slow them down. For instance, conventional tensile strain data are measured at very low strain rates, at a single temperature, time, and stress level. |
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