To study the effect of presteaming on shrinkage
stress development, experiments were also made by presteaming the samples at 180 [degrees]C for 30 minutes and followed by drying under pressure at six RH levels (0, 20, 40, 60, 80, and 100%).
L2] [%] are the flow directional shrinkages
at the two sides in flow direction of the specimen.
Under restraining conditions, shrinkage
is always associated with creep which relieves the stresses induced by shrinkage
results when polymer molecules relax after molding.
Thus, the Tax Court concluded, the IRS abused its discretion in insisting that no estimated shrinkage
be allowed, since that would result in a less accurate measurement of inventory and reflection of income.
According to Moldflow representatives, this problem most likely can be attributed to the extreme conditions of pressure, temperature, shear rate, and shrinkage
occurring near the gate.
A cure/run tire (C/RT) simulation was developed to assess changes in properties from treated cord to cured tire which arise due to cord shrinkage
during the curing process.
In each graph, measured and calculated shrinkages
In the research contained here, an attempt was made to partition the shrinkage
that is associated with freezing temperatures into true thermal expansion/contraction and moisture-diffusion related shrinkage
The most useful method yet developed is to divide overall differential shrinkage
of parts into three categories:
Some research works have been conducted both analytically [3, 7] and experimentally [8, 9] to study the in-mold shrinkage
behavior of the plastic materials with main focus on the in-plane shrinkage
or thickness shrinkage
of some defined points.
from green to final MC of each square were determined, and then they were linearly corrected to 15 percent MC.