Results 151 to 160 of about 1,698,358 (207)

Equivalence of stress and energy calculations of mean stress

Acta Metallurgica, 1977
Abstract Calculations of the mean stress in a plastically deformed matrix containing randomly distributed elastic inclusions are considered. The mean stress for an elastically homogeneous material is calculated on the basis of an energy consideration which completely accounts for elastic interactions.
O.B. Pedersen, L.M. Brown
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Equivalent Stress Equation for Unsaturated Soils. I: Equivalent Stress

International Journal of Geomechanics, 2008
In 1959 Bishop stated his effective stress equation for unsaturated soils. However, the difficulties in estimating the value of its main parameter χ , made this equation useless and it was abandoned for some time. Only recently, it has been recognized that the use of Bishop’s stress equation can lead to simpler and more realistic constitutive models ...
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Equivalent Stress Criteria for the Effect of Stress on Magnetic Behavior

IEEE Transactions on Magnetics, 2010
A main limitation of most models describing the effect of stress on the magnetic behavior is that they are restricted to uniaxial, tensile or compressive, stress. An idea to overcome this strong limitation is to define a fictive uniaxial stress, the equivalent stress that would affect the magnetic behavior in a similar manner than a multiaxial one ...
Daniel, Laurent, Hubert, Olivier
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Determination of the equivalent stress versus equivalent strain rate behaviour of superplastic alloys in biaxial stress systems

Materials Science and Engineering, 1984
Abstract Experimental work was conducted to determine the stress versus strain rate behaviour of superplastic PbSn eutectic alloy under uniaxial and biaxial tensile stress systems. Uniaxial tensile tests (at constant cross-head speed and constant load) were performed in the strain rate range 0.001–1.0 min−1.
A.R. Ragab, O.E. Habib
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Equivalent stresses for representing damping in combined stress

Journal of Sound and Vibration, 1969
Proposals for representing damping under combined stress conditions in terms of an equivalent simple stress are examined. Some general requirements which such proposals must satisfy are developed and certain anomalies in previous proposals are pointed out.
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On Damage Effective Stress and Equivalence Hypothesis

International Journal of Damage Mechanics, 1996
The concepts of damage effective stress and damage equivalence hypothesis play an important role in the development of continuum damage mechanics. Based on a generalization of the damage equivalence hypothesis, the so-called damage isotropy principle, it is found that the effective stress as a second-order tensor-valued function of the usual stress ...
Q. S. Zheng, J. Betten
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Thermal-stress analysis with electrical equivalents

IEEE Transactions on Components, Hybrids, and Manufacturing Technology, 1990
An electrical-equivalent method that can help to improve the conceptual understanding of thermal-stress problems is introduced. It is useful for a first-order analysis of thermal stresses in layered structures or laminates. The thermal expansion and the elasticity of each laminate layer are modeled as components in a three-terminal electrical ...
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The Equivalent Stress of Soil Skeleton

2018
Introducing the fabric tensor to reflect the distribution of the skeleton of the granular material, the real stress and the equivalent stress of the skeleton are obtained. A generalized method of anisotropic transformation of the isotropic constitutive model into an anisotropic one is proposed with the true stress of soil skeleton described by the ...
Tong Dong, Liang Kong, Likun Hua, Xing Wang, Yingren Zheng   +4 more
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Stress equivalence of solid-solution hardening

Journal of Physics: Condensed Matter, 1990
In the early 1970s, Basinski et al. (1972) observed that, if two solid solutions of different solutes in a given solvent (copper or silver) had the same initial flow stress at a given temperature in the range 4-380 K, then they had the same activation volume.
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Evolution of structures with homogeneous equivalent stress

PAMM, 2018
AbstractA phase field model is used to evolve structures with almost homogeneous equivalent stress σv. The model combines the sensitivity of a stress‐based and a couple‐stress‐based objective function. Since couple‐stress typically increases at stress‐singularities, it is an efficient parameter to influence the topology of load‐bearing structures ...
Ingo Muench, Alexander Keller
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