stress relaxation


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stress relaxation

The time-dependent decrease in stress in a constrained material under a constant load, 1.
References in periodicals archive ?
In the stress relaxation tests, the tested sample is kept at a certain predeformation level and decreasing stress level over time is recorded.
The company plans to launch additions of useful accessories this year, as well as a new, improved way to test stress relaxation in liquid.
1 ( ANI ): Researchers have substituted umbilical vein for artery in vascular transplantation, but they are still unclear if the stress relaxation and creep between these vessels are consistent.
Crosslinked materials are a problem because of the stability of primary crosslink bonding, which prevents chain or stress relaxation.
They examine such topics as experimental research on mineral processing on a certain lead-zinc ore, the interface constraint effect and stress relaxation in nano-sandwiched thin film, preparation and properties of conductive epoxy resincomposites, the two-photon selective reflection spectroscopy of confined atomic vapor at the interface with a ferroelectric layer, the mechanism of aluminizing aided by mechanical energy, detecting ascorbic acid with microchip electrophoresis, and foaming polystyrene with supercritical carbon dioxide.
Topics include wear resistance of metal oxide sol-gel coatings deposited over ceramic glazes, a high-temperature mechanical spectrometer for internal friction measurements, sliding wear behavior of duplex stainless steel, and creep and stress relaxation of hybrid organic-inorganic aerogels.
The significant reduction of shrinkage stresses during drying under high temperatures and pressurized superheated steam was caused by stress relaxation.
Stress relaxation tests detected aging and "memory" behavior over periods comparable with accelerated weathering cycles.
A new styrenic block copolymer from Kraton Polymers, Houston, reportedly offers reduced compression set and improved stress relaxation at temperatures above 70 C (158 F).
Measurement of Creep Rates and Stress Relaxation for Micro-Sized Pb-Free Solder Joints"
Other quasi-static test methods that have been used to characterize time-dependent response are indentation creep tests [13-15, 17, 21] and indentation stress relaxation tests [21].