Results 271 to 280 of about 537,633 (307)

On anisotropic finite deformation plasticity part I. A two-back stress model

Acta Mechanica, 1994
Based on the scale-invariance approach to finite plasticity, a two-back stress model is proposed to describe phenomenologically the evolution of substructure or texture development. Each back stress obeys its own evolution and rotational rules. Different types of hardening rules are obtained on the basis of crystal slip and a scale invariance argument ...
Ning, J., Aifantis, E. C.
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Measurement and modeling of back stress at intermediate to high homologous temperatures

International Journal of Plasticity, 2000
Abstract Unified creep-plasticity models often require a number of internal state variables to accurately capture the path dependence of rate- and temperature-dependent alloys especially at intermediate to high homologous temperatures. However, it is impossible to fully measure the internal state variables directly.
Neu, R. W., Scott, D. T., Woodmansee, M. W.   +2 more
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Radio pills

Journal of Medical Engineering & Technology, 1977
A system for the quantitative assessment of spinal stress during manual materials handling has been developed. This has been achieved using radio pressure pills and is applicable to both laboratroy and field use for establishing safe general handling procedures and defining safe maximum loads.
P R, Davis, D A, Stubbs, J E, Ridd
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Back-stress distribution along a thin twin layer in TiAl

Materials Science and Engineering: A, 1995
Abstract Mechanical twinning has been found to be an important deformation mechanism in TiAl. However, the details of mechanical twinning mechanisms, such as how mechanical twins nucleate and propagate in TiAl, are not clear, although some fundamental investigations on twin propagation and twin intersections have been pursued. In order to clarify the
Zhe Jin, Thomas R. Bieler
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Back Stress in Modeling the Response of PEEK and PC

With the development of new methods for the characterization of equilibrium stress through cyclic loading, it is now possible to follow the evolution of back stress during the nonlinear deformation of polymers. Experiments on PEEK and PC below the glass-transition temperature indicate a back stress that may evolve with plastic deformation, and which is
Wenlong Li, George Gazonas, Eric N. Brown, Philip J. Rae, Mehrdad Negahban   +4 more
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The role of back stress in sub-50 nm Si nanocubes

Scripta Materialia, 2016
Abstract Development of more accurate descriptions of dislocation motion requires understanding the actual effective stress driving it. Back stresses from dislocation pile-ups can work against the applied stress resulting in lower stresses acting on moving dislocations.
E.D. Hintsala, A.J. Wagner, W.W. Gerberich, K.A. Mkhoyan   +3 more
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Back stress: the effects of training nurses to lift patients in a clinical situation

International Journal of Nursing Studies, 1983
The high incidence of low back pain in nurses related to patient handling tasks, shown by Stubbs et al. (1981), confirms the view that nurses use lifting techniques which are highly stressful. The training nurses receive in lifting appears to vary throughout the United Kingdom, both in time spent and method of training (Raistrick, 1981), but two facts ...
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The Role of Long-Range Internal Back Stresses in Creep of Metals

1982
The use of back stress terms in constitutive equations implies the existence of inhomogeneous stresses within the solid. We suggest that such inhomogeneities arise naturally from dislocation processes and are associated with the development of hard and soft regions within the substructure.
WD Nix, JC Gibeling, KP Fuchs
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Plant hormone regulation of abiotic stress responses

Nature Reviews Molecular Cell Biology, 2022
Rainer Waadt, Po-Kai Hsu, Yohei Takahashi   +2 more
exaly  

Back Stress Isnʼt Part of the Job

AJN, American Journal of Nursing, 1993
Bernice D. Owen, Arun Garg
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