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What is stress relaxation time?

Asked by Carole Nelson on September 17, 2021

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3 Stress Relaxation. Stress relaxation is a time-dependent decrease in stress under a constant strain. This characteristic behavior of the polymer is studied by applying a fixed amount of deformation to a specimen and measuring the load required to maintain it as a function oftime.

What is stress engineering? Stress is the ratio of applied force F to a cross section area - defined as "force per unit area". tensile stress - stress that tends to stretch or lengthen the material - acts normal to the stressed area. compressive stress - stress that tends to compress or shorten the material - acts normal to_the stressed area.

What is creep relaxation? Creep Relaxation. In basic terms, creep relaxation is the measurement of how much a particular gasket material spreads (thins)out when force is applied. As the gasket loses thickness, the bolts can relax, which leads to a loss of load.

What is viscoelasticity explain in brief? Viscoelasticity is the property of materials that exhibitboth viscous and elastic characteristics when undergoing deformation. Viscous materials, like water, resist shear flow and strain linearly with time when a stress is applied.