Shear Slope
Shear Slope - Related Videos
01:18
Elasticity and Slope
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2024
The slope and elasticity of a demand curve, while related, serve different purposes in economic analysis. Slope of Demand Curve: • The slope represents the rate at which the quantity demanded changes in response to a change in price. • It depends on the units used for measuring price and quantity, complicating comparisons across diverse products and markets. For instance, the slope for a product priced in euros per unit will differ from that of a product priced in yen per unit, even if their...
04:53
A Novel Capsulorhexis Technique Using Shearing Forces with Cystotome
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Cited by 5 •
2010
This video demonstrates a novel capsulorhexis technique in modern cataract surgery. Capsulorhexis is the most difficult and important part of phacoemulsification surgery.
09:20
The Assembly and Application of 'Shear Rings': A Novel Endothelial Model for Orbital, Unidirectional and Periodic Fluid Flow and Shear Stress
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Cited by 10 •
2016
Different levels and patterns of fluid shear are known to modulate endothelial gene expression, phenotype and susceptibility to disease. We discuss the assembly and use of 'shear rings': a model that produces unidirectional, periodic shear stress patterns. Shear rings are simple to assemble, economical and can produce high cell yields.
01:18
Shearing Stress
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2026
Shearing stress, denoted by the Greek letter tau (τ), is stress caused by forces acting transversely on an object. These forces create internal ones within the entity in the plane where the external forces are applied. The resultant of these internal forces is the shear in the section. The average shearing stress can be calculated by dividing the shear by the area of the cross-section. However, this is an average value as the distribution of shearing stress across a section varies. It can...
01:20
Shearing Strain
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2024
The shearing strain represents a cubic element's angular change when subjected to shearing stress. This type of stress can transform a cube into an oblique parallelepiped without influencing normal strains. The cubic element experiences a significant transformation when exposed solely to shearing stress. Its shape alters from a perfect cube into a rhomboid, clearly demonstrating the effect of shearing strain. The degree of this strain is considered positive if it reduces the angle between the...
FAQs
These three factors determine how much shearing resistance soil or rock can mobilize. Cohesion contributes strength between particles or within the material, internal friction resists sliding, and effective stress represents the stress carried through the soil or rock structure. Stability improves when available shear strength remains greater than the stresses tending to drive movement along a potential failure surface.
Pore-water pressure can reduce effective stress within soil or rock, weakening the contact forces that contribute to shear resistance. As water pressure rises, the margin between available strength and driving shear stress becomes smaller. This mechanism explains why drainage measures are important design considerations for excavations, embankments, dams, roads, and natural hillsides.
A potential failure surface represents a possible path along which soil or rock could move. Engineers evaluate the driving shear stresses and available strength along that path to judge whether sliding is likely. Predicting these surfaces helps connect the stability assessment to practical decisions, including slope geometry, reinforcement, drainage, or retaining systems.
Driving shear stresses promote movement downslope, whereas shear strength opposes that movement. The balance between them determines whether a slope remains stable or approaches failure. Cohesion, internal friction, and effective stress increase the resisting side of this balance, while conditions that raise pore-water pressure can reduce resistance and increase the likelihood of sliding.
The assessment can guide several types of intervention: choosing a safer slope angle, adding drainage to address water-related weakening, installing reinforcement, or using a retaining system. The appropriate choice depends on the stability problem identified. These measures are intended to increase resistance, reduce driving risk, or control conditions that could promote sliding.
Engineers apply this analysis to excavations, embankments, roads, dams, and natural hillsides. In each setting, the evaluation supports decisions about stability and potential landslide risk rather than treating slope geometry alone as sufficient. Its results can inform infrastructure design and help anticipate failure surfaces before construction or continued use creates serious consequences.