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Creep (deformation)

Index Creep (deformation)

In materials science, creep (sometimes called cold flow) is the tendency of a solid material to move slowly or deform permanently under the influence of mechanical stresses. [1]

63 relations: Alloy, Annealing (metallurgy), Aramid, Big Dig ceiling collapse, Biomaterial, Biomechanics, Boltzmann constant, Boston, Coble creep, Collapse of the World Trade Center, Convolution, Crown glass (window), Crystallite, Dashpot, Deformation (mechanics), Deformation mechanism, Diffusion creep, Dislocation, Ductility, Electric wire ferrule, Failure cause, Fracture, Glass transition, Grain boundary, Grain Boundary Sliding, Grain size, Hooke's law, Hysteresis, Kelvin–Voigt material, Kevlar, Larson–Miller parameter, Materials science, National Transportation Safety Board, Necking (engineering), Newtonian fluid, Nimonic, Polyester, Polymer, Polymer engineering, Polyvinylidene fluoride, Potential well, Precipitation hardening, Schottky defect, Screw terminal, Shear modulus, Slip (materials science), Solder, Solid solution strengthening, Stress (mechanics), Stress relaxation, ..., Structural integrity and failure, Structural load, Twaron, Ultra-high-molecular-weight polyethylene, Vacancy defect, Viscoelasticity, Viscoplasticity, Washington, D.C., Wire, Wire wrap, Work hardening, Yield (engineering), Zdeněk P. Bažant. Expand index (13 more) »

Alloy

An alloy is a combination of metals or of a metal and another element.

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Annealing (metallurgy)

Annealing, in metallurgy and materials science, is a heat treatment that alters the physical and sometimes chemical properties of a material to increase its ductility and reduce its hardness, making it more workable.

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Aramid

Aramid fibers are a class of heat-resistant and strong synthetic fibers.

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Big Dig ceiling collapse

The Big Dig ceiling collapse occurred on July 10, 2006, when a concrete ceiling panel and debris weighing and measuring fell in Boston's Fort Point Channel Tunnel (which connects to the Ted Williams Tunnel).

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Biomaterial

A biomaterial is any substance that has been engineered to interact with biological systems for a medical purpose - either a therapeutic (treat, augment, repair or replace a tissue function of the body) or a diagnostic one.

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Biomechanics

Biomechanics is the study of the structure and function of the mechanical aspects of biological systems, at any level from whole organisms to organs, cells and cell organelles, using the methods of mechanics.

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Boltzmann constant

The Boltzmann constant, which is named after Ludwig Boltzmann, is a physical constant relating the average kinetic energy of particles in a gas with the temperature of the gas.

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Boston

Boston is the capital city and most populous municipality of the Commonwealth of Massachusetts in the United States.

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Coble creep

Coble creep, a form of diffusion creep, is a mechanism for deformation of crystalline solids.

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Collapse of the World Trade Center

The Twin Towers of the World Trade Center (WTC) collapsed on September 11, 2001, as a result of being struck by two jet airliners hijacked by 10 terrorists affiliated with al-Qaeda, during the September 11 attacks.

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Convolution

In mathematics (and, in particular, functional analysis) convolution is a mathematical operation on two functions (f and g) to produce a third function, that is typically viewed as a modified version of one of the original functions, giving the integral of the pointwise multiplication of the two functions as a function of the amount that one of the original functions is translated.

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Crown glass (window)

Crown glass was an early type of window glass.

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Crystallite

A crystallite is a small or even microscopic crystal which forms, for example, during the cooling of many materials.

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Dashpot

A dashpot is a mechanical device, a damper which resists motion via viscous friction.

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Deformation (mechanics)

Deformation in continuum mechanics is the transformation of a body from a reference configuration to a current configuration.

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Deformation mechanism

In structural geology, metallurgy and materials science, deformation mechanisms refer to the various mechanisms at the grain scale that are responsible for accommodating large plastic strains in rocks, metals and other materials.

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Diffusion creep

Diffusion creep refers to the deformation of crystalline solids by the diffusion of vacancies through their crystal lattice.

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Dislocation

In materials science, a dislocation or Taylor's dislocation is a crystallographic defect or irregularity within a crystal structure.

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Ductility

Ductility is a measure of a material's ability to undergo significant plastic deformation before rupture, which may be expressed as percent elongation or percent area reduction from a tensile test.

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Electric wire ferrule

An electric wire ferrule (sometimes end terminal) is a metal tube crimped over stranded wire to secure the strands within a screw terminal.

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Failure cause

Failure causes are defects in design, process, quality, or part application, which are the underlying cause of a failure or which initiate a process which leads to failure.

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Fracture

A fracture is the separation of an object or material into two or more pieces under the action of stress.

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Glass transition

The glass–liquid transition, or glass transition, is the gradual and reversible transition in amorphous materials (or in amorphous regions within semicrystalline materials), from a hard and relatively brittle "glassy" state into a viscous or rubbery state as the temperature is increased.

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Grain boundary

A grain boundary is the interface between two grains, or crystallites, in a polycrystalline material.

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Grain Boundary Sliding

Grain Boundary Sliding is a deformation mechanism of materials which includes displacement of grains against each other at high homologous temperature and low strain rate.

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Grain size

Grain size (or particle size) is the diameter of individual grains of sediment, or the lithified particles in clastic rocks.

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Hooke's law

Hooke's law is a principle of physics that states that the force needed to extend or compress a spring by some distance scales linearly with respect to that distance.

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Hysteresis

Hysteresis is the dependence of the state of a system on its history.

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Kelvin–Voigt material

A Kelvin–Voigt material, also called a Voigt material, is a viscoelastic material having the properties both of elasticity and viscosity.

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Kevlar

Kevlar is a heat-resistant and strong synthetic fiber, related to other aramids such as Nomex and Technora.

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Larson–Miller parameter

The Larson–Miller parameter is a means of predicting the lifetime of material vs.

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Materials science

The interdisciplinary field of materials science, also commonly termed materials science and engineering is the design and discovery of new materials, particularly solids.

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National Transportation Safety Board

The National Transportation Safety Board (NTSB) is an independent U.S. government investigative agency responsible for civil transportation accident investigation.

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Necking (engineering)

Necking, in engineering or materials science, is a mode of tensile deformation where relatively large amounts of strain localize disproportionately in a small region of the material.

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Newtonian fluid

In continuum mechanics, a Newtonian fluid is a fluid in which the viscous stresses arising from its flow, at every point, are linearly proportional to the local strain rate—the rate of change of its deformation over time.

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Nimonic

Nimonic is a registered trademark of Special Metals Corporation that refers to a family of nickel-based high-temperature low creep superalloys.

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Polyester

Polyester is a category of polymers that contain the ester functional group in their main chain.

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Polymer

A polymer (Greek poly-, "many" + -mer, "part") is a large molecule, or macromolecule, composed of many repeated subunits.

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Polymer engineering

Polymer engineering is generally an engineering field that designs, analyses, or modifies polymer materials.

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Polyvinylidene fluoride

Polyvinylidene fluoride or polyvinylidene difluoride (PVDF) is a highly non-reactive thermoplastic fluoropolymer produced by the polymerization of vinylidene difluoride.

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Potential well

A potential well is the region surrounding a local minimum of potential energy.

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Precipitation hardening

Precipitation hardening, also called age hardening or particle hardening, is a heat treatment technique used to increase the yield strength of malleable materials, including most structural alloys of aluminium, magnesium, nickel, titanium, and some steels and stainless steels.

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Schottky defect

A Schottky defect is a type of point defect in a crystal lattice named after Walter H. Schottky.

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Screw terminal

A screw terminal is a type of electrical connector where a wire is held by the tightening of a screw.

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Shear modulus

In materials science, shear modulus or modulus of rigidity, denoted by G, or sometimes S or μ, is defined as the ratio of shear stress to the shear strain: where The derived SI unit of shear modulus is the pascal (Pa), although it is usually expressed in gigapascals (GPa) or in thousands of pounds per square inch (ksi).

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Slip (materials science)

In materials science, a slip system describes the set of symmetrically identical slip planes and associated family of slip directions for which dislocation motion can easily occur and lead to plastic deformation.

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Solder

Solder (or in North America) is a fusible metal alloy used to create a permanent bond between metal workpieces.

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Solid solution strengthening

Solid solution strengthening is a type of alloying that can be used to improve the strength of a pure metal.

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Stress (mechanics)

In continuum mechanics, stress is a physical quantity that expresses the internal forces that neighboring particles of a continuous material exert on each other, while strain is the measure of the deformation of the material.

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Stress relaxation

In materials science, stress relaxation is the observed decrease in stress in response to the same amount of strain generated in the structure.

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Structural integrity and failure

Structural integrity and failure is an aspect of engineering which deals with the ability of a structure to support a designed load (weight, force, etc...) without breaking, and includes the study of past structural failures in order to prevent failures in future designs.

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Structural load

Structural loads or actions are forces, deformations, or accelerations applied to a structure or its components.

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Twaron

Twaron (a brand name of Teijin Aramid) is a para-aramid.

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Ultra-high-molecular-weight polyethylene

Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) is a subset of the thermoplastic polyethylene.

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Vacancy defect

In crystallography, a vacancy is a type of point defect in a crystal.

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Viscoelasticity

Viscoelasticity is the property of materials that exhibit both viscous and elastic characteristics when undergoing deformation.

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Viscoplasticity

Viscoplasticity is a theory in continuum mechanics that describes the rate-dependent inelastic behavior of solids.

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Washington, D.C.

Washington, D.C., formally the District of Columbia and commonly referred to as Washington or D.C., is the capital of the United States of America.

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Wire

A wire is a single, usually cylindrical, flexible strand or rod of metal.

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Wire wrap

Wire wrap was invented to wire telephone crossbar switches, and later adapted to construct electronic circuit boards.

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Work hardening

Work hardening, also known as strain hardening, is the strengthening of a metal or polymer by plastic deformation.

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Yield (engineering)

The yield point is the point on a stress–strain curve that indicates the limit of elastic behavior and the beginning of plastic behavior.

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Zdeněk P. Bažant

Zdeněk Pavel Bažant (born December 10, 1937) is McCormick School Professor and Walter P. Murphy Professor of Civil Engineering and Materials Science in the Department of Civil and Environmental Engineering at Northwestern University's Robert R. McCormick School of Engineering and Applied Science.

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Creep (deformation mode), Creep (failure mode), Creep (materials science), Creep (materials), Creep Curves, Creep failure, Creep of materials, Creep strength, Material creep.

References

[1] https://en.wikipedia.org/wiki/Creep_(deformation)

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