Results 271 to 280 of about 805,278 (315)

Strain drop and apparent strain for large earthquakes

Tectonophysics, 1992
Abstract Kikuchi, M., 1992. Strain drop and apparent strain for large earthquakes. In: T. Mikumo, K. Aki, M. Ohnaka, L.J. Ruff and P.K.P. Spudich (Editors), Earthquake Source Physics and Earthquake Precursors. Tectonophysics, 211: 107–113. Two kinds of strains are considered: the strain drop ( Δσ 2μ ) and the apparent average strain. The latter
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An interpretation of the strain-invariants in largely strained networks

Colloid & Polymer Science, 1985
It is known that the stress-strain behavior of real networks is quantitatively described by a van der Waals equation of state: the strain-energy function of these systems can be shown to depend upon the first strain-invariant only. With adequate deliberation, the second strain-invariant is identified as being related to “non-permanently crosslinked ...
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Strain rate sensitivity of flow stress at large strains

Acta Materialia, 1998
Measurements of the strain rate sensitivity of flow stress are critically assessed. Results depend on strain and on the range of strain rates employed. Changes in strain hardening and transients in the flow stress are discussed.
H.P. Stüwe, P. Les
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Large Strains and Displacements in Stress-Strain Problems

Nature, 1947
I have developed a theory that gives the relationship between the stresses and any finite values of displacement1 and strains2 in a loaded structure.
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Plane strain bending of a bimetallic sheet at large strains

Structural Engineering and Mechanics, 2016
This paper deals with the pure bending of incompressible elastic perfectly plastic two-layer sheets under plane strain conditions at large strains. Each layer is classified by its yield stress, shear modulus of elasticity and its initial percentage thickness in relation to the whole sheet. The solution found is semi-analytic. In particular, a numerical
Sergei E. Alexandrov, Nguyen D. Kien, Dinh V. Manh, Fedor V. Grechnikov   +3 more
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Large strain viscoelastic constitutive models

International Journal of Solids and Structures, 2001
New material (Lagrangean) and spatial formulations for large strain isothermal viscoelacticity, as extention of the well known generalized linear Maxwell model, are proposed. Both formulations are using the multiplicative decomposition of the isochoric component of the deformation gradient into elastic and viscous components [see \textit{R. W.
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A novel fluidic strain sensor for large strain measurement

Sensors and Actuators A: Physical, 2008
Abstract A novel fluidic strain sensor is proposed with the use of a mixture of glycerin with aqueous sodium chloride encapsulated within an elastomer as a mean for piezoresistive large strain measurement. Electrochemical impedance spectroscopy (EIS) is conducted for strain response measurement and equivalent circuit analysis is applied for ...
Yin-Nee Cheung, Yun Zhu, Ching-Hsiang Cheng, Chen Chao, Wallace Woon-Fong Leung   +4 more
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Large Strain, High Strain Rate Testing of Copper

Journal of Engineering Materials and Technology, 1980
This paper describes the development of a high-speed torsional testing machine and results obtained on the strain-rate dependent strength of copper at large shear strains. Test techniques and data obtained are intended to be useful in applications such as ballistics and machining.
U. S. Lindholm, A. Nagy, G. R. Johnson, J. M. Hoegfeldt   +3 more
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Material Constitutive Law for Large Strains and Strain Rates

Journal of Engineering Mechanics, 2000
This note comments on a strain rate pattern found in tensile tests. This strain rate pattern readily suggests that the Cowper-Symonds equation relating the static and dynamic flow stresses with the strain rate is not valid for a broad range of strains unless its coefficients change.
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Strain hardening at large strains in aluminum alloys

The strain hardening properties of high purity Al, commercial purity Al, Al-Mn, Al-Mg and Al-Cu alloys have been investigated at large strains in the temperature range 77-473K. Torsion of short thin walled cylinders was chosen as the deformation method because large strains can be achieved without such problems as friction and redundant work.
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