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Rankine's theory (maximum-normal stress theory), developed in 1857 by William John Macquorn Rankine, [1] is a stress field solution that predicts active and passive earth pressure. It assumes that the soil is cohesionless, the wall is frictionless, the soil-wall interface is vertical, the failure surface on which the soil moves is planar , and ...
Types of faulting. Anderson's theory of faulting, devised by Ernest Masson Anderson in 1905, is a way of classifying geological faults by use of principal stress. [1] [2] A fault is a fracture in the surface of the Earth that occurs when rocks break under extreme stress. [3]
COR has been utilized when studying work/family stress, [10] [11] burnout, [12] and general stress. [13] In work/family stress, COR research has looked at how the distribution of one’s resources have affected their home life, with some articles finding that putting too much of one’s resources into one’s work may lead to family problems at ...
Within the branch of materials science known as material failure theory, the Goodman relation (also called a Goodman diagram, a Goodman-Haigh diagram, a Haigh diagram or a Haigh-Soderberg diagram) is an equation used to quantify the interaction of mean and alternating stresses on the fatigue life of a material. [1]
The Ramberg–Osgood equation was created to describe the nonlinear relationship between stress and strain—that is, the stress–strain curve—in materials near their yield points. It is especially applicable to metals that harden with plastic deformation (see work hardening), showing a smooth elastic-plastic transition.
We also assume that the sign convention of the stress resultants (and ) is such that positive bending moments compress the material at the bottom of the beam (lower coordinates) and positive shear forces rotate the beam in a counterclockwise direction.
Transactional Model of Stress and Coping of Richard Lazarus Richard S. Lazarus (March 3, 1922 – November 24, 2002) was an American psychologist who began rising to prominence in the 1960s. A Review of General Psychology survey, published in 2002, ranked Lazarus as the 80th most cited psychologist of the 20th century. [ 1 ]
The stress due to shear force is maximum along the neutral axis of the beam (when the width of the beam, t, is constant along the cross section of the beam; otherwise an integral involving the first moment and the beam's width needs to be evaluated for the particular cross section), and the maximum tensile stress is at either the top or bottom ...