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In materials science, creep (sometimes called cold flow) is the tendency of a solid material to undergo slow deformation while subject to persistent mechanical stresses.It can occur as a result of long-term exposure to high levels of stress that are still below the yield strength of the material.
Concept creep is the process by which harm-related topics experience semantic expansion to include topics which would not have originally been envisaged to be included under that label. [1] It was first identified by Nick Haslam in 2016, who identified its effects on the concepts of abuse, bullying, trauma, mental disorder, addiction, and ...
L. M. Kachanov [5] and Y. N. Rabotnov [6] suggested the following evolution equations for the creep strain ε and a lumped damage state variable ω: ˙ = ˙ ˙ = ˙ where ˙ is the creep strain rate, ˙ is the creep-rate multiplier, is the applied stress, is the creep stress exponent of the material of interest, ˙ is the rate of damage accumulation, ˙ is the damage-rate multiplier, and is ...
A mechanical ratchet moving in its "forward" direction and unable to move backward.. The ratchet effect is a concept in sociology and economics illustrating the difficulty with reversing a course of action once a specific thing has occurred, analogous with the mechanical ratchet that allows movement in one direction and seizes or tightens in the opposite.
Grain boundary sliding (GBS) is a material deformation mechanism where grains slide against each other. This occurs in polycrystalline material under external stress at high homologous temperature (above ~0.4 [1]) and low strain rate and is intertwined with creep.
Primary Creep: the initial creep stage where the slope is rising rapidly at first in a short amount of time. After a certain amount of time has elapsed, the slope will begin to slowly decrease from its initial rise. Steady State Creep: the creep rate is constant so the line on the curve shows a straight line that is a steady rate.
Social work is a broad profession that intersects with several disciplines. Social work organizations offer the following definitions: Social work is a practice-based profession and an academic discipline that promotes social change and development, social cohesion, and the empowerment and liberation of people.
Crip, slang for cripple, is a term in the process of being reclaimed by disabled people. [1] [2] Wright State University suggests that the current community definition of crip includes people who experience any form of disability, such as one or more impairments with physical, mental, learning, and sensory, [1] though the term primarily targets physical and mobility impairment.