Results 171 to 180 of about 4,273 (216)

Stresses in sheets with backing

Journal of the Franklin Institute, 1975
Abstract A mathematical model of surface layers such as tilings, plasters and coatings is established in this paper. To solve the field equations analytically, use is made of a pertubation scheme which yields the influence of the “backing” on the elastic behavior of “the sheet”. As an application, an illustrative example is worked out and the results
openaire   +2 more sources

Continuous Assessment of Back Stress (CABS): A New Method to Quantify Low-Back Stress in Jobs with Variable Biomechanical Demands

Human Factors: The Journal of the Human Factors and Ergonomics Society, 2000
Jobs with a high degree of variability in manual materials handling requirements expose limitations in current low-back injury risk assessment tools and emphasize the need for a probabilistic representation of the biomechanical stress in order to quantify both acute and cumulative trauma risk.
Gary A. Mirka, Daniel P. Kelaher, D. Todd Nay, Brad M. Lawrence   +3 more
openaire   +2 more sources

Assessing Low Back Stress in the Construction Industry Using the Continuous Assessment of Back Stress (CABS) Method

Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 1998
The construction industry has long been identified as a high risk industry for low back injuries due to the significant amount of manual materials handling and awkward trunk postures associated with many of its jobs. The variable nature of the tasks performed by construction workers expose these workers to risk factors for both acute and cumulative ...
Gary A. Mirka, Daniel P. Kelaher, D. Todd Nay, Brad M. Lawrence   +3 more
openaire   +1 more source

Helping children with back‐to‐school stress

The Brown University Child and Adolescent Behavior Letter, 2022
By now, most children have been in classrooms for at least a month. While the return to once‐familiar routines may seem refreshing to parents, the fears of lockdown still haunt children, and these are only compounded by regular stressors caused by school.
openaire   +1 more source

Back calculation of in-situ stress condition based on secondary stress measurements

The IV Nordic Symposium on Rock Mechanics and Rock Engineering - Proceedings, 2023
A large underground cavern design at a shallow depth requires reliable estimation of in-situ stress conditions. Geological conditions, topography, and tectonic activity influence the magnitude of the in-situ stresses. The objective of this paper is to predict and evaluate the in-situ stress state before the excavation of two pilot tunnels in a railway ...
Kriti Panthi, Roger Olsson, Eric Hegardt
openaire   +1 more source

Back-stresses, image stresses, and work-hardening

Acta Metallurgica, 1973
Abstract A comparison is made between recently published theories on the plastic behaviour of dispersion-hardened alloys in which no plastic relaxation occurs. It is shown that Tanaka and Mori's(1) calculation is a rigorous lower bound for the hardening to be expected. Some new derivations are given for the mean strains in matrix and inclusions.
openaire   +1 more source

Spinal stress—an approach to quantification with respect to back pain

Clinical Biomechanics, 1987
Back pain is a major problem throughout the industrialized world, and although its aetiology is ill understood, the problem demands immediate attention. This paper briefly describes the investigative strategy used in studies of back pain by the Ergonomics Research Unit at the University of Surrey.
D A, Stubbs, D, Baty, J, Reardon
openaire   +2 more sources

Back stress solutions.

The American journal of nursing, 1993
P. P., Mary Lawler Lewis
  +5 more sources

Stressing life events and the experience of low back pain

Journal of Psychosomatic Research, 1979
Abstract Life-stress events, attributes of low back pain, anxiety, hostility and depression were measured in 148 patients hospitalized for evaluation and treatment of low back pain. Fifty-seven of these patients had definite organic disease, 51 had probable organic disease, and 40 had no demonstrable organic disease.
F, Leavitt, D C, Garron, L A, Bieliauskas   +2 more
openaire   +2 more sources

The back stress in high temperature deformation

Acta Metallurgica, 1969
Abstract The applicability of the following strain rate equation to high temperature deformation is examined. e=|gf s exp ( −ΔH 0 KT ) exp ( vτ − τB] KT ) Here e is the tensile or compressive strain rate; φs is a structure factor; ΔH0 is the activation enthalpy in the absence of effective stress; v is the activation ...
openaire   +1 more source