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permanent set

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permanent set

[′pər·mə·nənt ′set]
(mechanics)
Permanent plastic deformation of a structure or a test piece after removal of the applied load. Also known as set.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

permanent set

The change in length (expressed as a percentage of the original length) by which an elastic material fails to return to original length after being stressed for a standard period of time. Also See set.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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References in periodicals archive
The tensile and permanent set properties of P-E polymers exhibit remarkable mechanical annealing characteristics.
(pts.) 54 51 54 Ultimate tensile (MPa) 16.13 11.3 13.98 Ultimate elongation (%) 561 570 446 Stress @ 25 (MPa) 0.69 0.61 0.66 Stress @ 50 (MPa) 0.95 0.81 0.96 Stress @ 100 (MPa) 1.31 1.07 1.62 Stress @ 200 (MPa) 2.68 1.99 3.9 Stress @ 300 (MPa) 5.7 3.9 7.67 300M/100M 4.4 3.6 4.7 DeMattia flex test (cured tc90+10 @ 170[degrees]C, samples punched) Crack growth unaged 300% (Kc) 3.1 3.9 2.1 Crack growth unaged 600% (Kc) 11 15 7 DIN abrasion (cure tc90+10 @ 170[degrees]C) Specific gravity Abrasion volume loss ([mm.sup.3]) 44 87 108 Flexometer (cured tc90+10 @ 170[degrees]C; 55[degrees]C, 11 kg on beam, compression stroke 17.5%) Heat rise 39.3 Too 24 Permanent set (%) 5.3 soft 1.5 RSA II, temperature sweep (2[degrees]C/min., 60 sec.
The company's formulation is said to provide elasticity and strength, puncture resistance, low permanent set to prevent finger marks and indentation due to handling, high oxygen permeability, moisture barrier properties and cling.
Davison's steel scaffolding permanent set used throughout along with Peter Mumford's splendid lighting, a production facet upon which so much depends.
Digital cameras give 35mm quality without expensive lighting setups, multicamera shoots cut the time required to complete each scene and a permanent set - including an entire shopping mall interior - eliminates location moves.
Instead of a permanent set of company members, Brightling Sea represents an ongoing creative space for collaborative exchange, exploration and artistic cross-fertilisation, manifesting in the form of anything from site specific pieces, to solo work, to inter-disciplinary performance projects.
The involvement throughout from community actors and professionals directed fluently by Jenny Stephens and Kim Greengrass is seamless with touching well shaped performances evoked beneath the permanent set.
Testing instruments and systems include standard and custom abrasion testers, block ovens, bond testers, brittlepoint testers, durometers, fatigue-to-failure testers, clicker presses, flex testers, molds and dies, impact testers, melt flow indexes, permanent set testers, plastometers, grips and fixtures, falling weight impact testers, rebound testers, resiliometers, rheometers, specific gravity testers, viscometers and tensile testers for such markets as rubber and plastics, composites, textiles and more.
At the Capulets' rave-up (in a permanent set which reminded me of a urinaum-Tu rkish bath) the Nurse belts out a neat boogie number into the hand mike.
low (coated) Specific gravity (calcite) 2.71 Hardness 3.0 Mohs (fairly soft) Dielectric properties Moderate to excellent Some influence by chemical additives Thermal conductivity High (relative to polymers) Coefficient of thermal Low (relative to polymers) expansion pH 9-10 Modulus and hardness Low Dispersibility Easy to very easy (coated) Very easy to easy Chemical resistance (acids) Poor Permanent set Low Die swell High Compound viscosity Low Green strength Low Building tack High
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