Introducing the Schapery model and a new method of parameter identification, the uniaxial ratcheting
of PEI polymer can be simulated by the nonlinear viscoelastic constitutive model in integral form, even if the original model over-predicts the ratcheting
of PEI observed in the cyclic tension--tension tests.
The effects of the following three parameters were studied in multiaxial ratcheting
tests: (a) axial stress, (b) shear strain amplitude, and (c) shear strain rate.
It is seen that the ratcheting
strain reached approximately 1% after 10 cycles.
 proposed a semiempirical model to describe the steady accumulation of ratcheting
The EZ Spanner's[TM] ratcheting
design allows firefighters to get water on the fire faster.
up performance is essentially an addiction strategy: Create performance targets that people can hit.
The self-adjusting ratcheting
pipe wrenches added to the Proto tool lineup has no nut; instead, it has a spring-loaded hook jaw that adjusts its opening to the work size and tightens as the user bears down on the handle.
The new RIDGID RC-1625 ratcheting
plastic pipe and tubing cutter, from RIDGID, has a large capacity and an advanced blade design that reduces required cutting force.
That law whittles the estate-tax rate down to 45 percent by 2007 while simultaneously ratcheting
up personal exemptions--the amount taxpayers can pass to heirs free of estate tax--over the next four years.
Already on the drawing beards of one of Duncan's competitors is a yo-yo with an even finer ratcheting
The No-Play[TM] ratcheting
screwdriver is a patent-pending orthopedic and surgical instrument designed to eliminate movement between the handle and the shaft of the screwdriver.