Results 91 to 100 of about 3,633,666 (147)

Measures of Finite Strain and Stress-Strain Relations

Journal of the Physical Society of Japan, 1960
Ordinarily, stress-strain relation of Lagrange's representation is written in terms of Lagrange's representation of stress σ i j and the Love measure e i j L . From the above relation, we can derive Reiner's equation in terms of Euler's representation of stress T λµ and the Green measure e λµ β .
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Using strain gages to measure both strain and temperature

Experimental Mechanics, 1992
A transducer is proposed that measures both temperature and strain by using two different strain gages. The theoretical basis for designing such a transducer is developed. Experimental results indicate that the temperature signal can be measured satisfactorily.
CAPPA, Paolo, G. DE RITA, K. G. MCCONNELL, L. W. ZACHARY   +3 more
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The Stress‐Strain‐Relation of Elasticity and the Measure of Strain

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 1960
AbstractThe stress‐strain relation of elasticity which is independent of the measure of strain contains the straintensor in zero, first and second order and an infinite number of scalar parameters. When the displacement gradient is infinitesimal, the relation is reduced to sik = (λI + δII) δik + 2μ δik + 4μc ϵiα ϵαk with the four constant scalar ...
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Stretchable strain sensor for distributed strain measurement and design of measurement circuit

International Journal of Applied Electromagnetics and Mechanics, 2016
We propose a stretchable strain sensor for measurement of distributed strain. The strain sensor is composed of elastic sheets. The elastic modulus of the strain sensor is low. Hence, the strain sensor pasted on human skin or clothes is able to stretch along their shape and stretch. The principle of the strain measurement is a capacitive change based on
Nakamoto, Hiroyuki, Ootaka, Hideo, Hirata, Ichiro, Kobayashi, Futoshi, Kojima, Fumio   +4 more
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Do we measure strain when we measure strain?

Strain, 1972
Errors can occur in the measurements from a strain gauge installation unless certain precautions are taken. Practical solutions are given to minimise the influence of temperature, moisture etc., to ensure an acceptable zero stability.
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Aspects of strain measures and strain rates

Acta Mechanica, 1986
In finite homogeneous deformation processes, the principal triad generally rotates with respect to a material element during the deformation. The material derivative of the logarithmic strain is no longer simply related to the rate of deformation tensor, and this is exemplified herein.
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Measurement of Compressive Stress-Strain Response at Small-Strains

Journal of Visualized Experiments
This study developed a measurement method capable of precisely evaluating the mechanical behavior of materials and microdevices in the small-strain region. The system integrates a motor-controlled z-stage, a microcontroller board, an operational amplifier circuit, and a force sensor, enabling synchronized force-displacement acquisition through custom ...
Jaehyeong, Kim, Sangjun, Pyo, Hyerin, Ahn, Ok Chan, Jeong   +3 more
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Measuring Strain in the ICU*

Critical Care Medicine, 2023
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Strain gauge measurement

1992
Strain gauge model testing is commonly applied in mechanical and civil engineering to complement analytical, numerical and finite element models and to assess the relative behaviour of components. In biomechanics comparative investigation of product performance in vitro is often obtained by testing models fitted with different prostheses in a ...
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STRAIN MEASUREMENT APPARATUS AND METHOD FOR MEASURING MECHANICAL STRAIN

2023
AMINI SHAHROUZ, FRATZL PETER
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