Measure Accommodation Cushioning Control Density Low Medium High Hardness Low Medium High Force Reduction Low High High Compression Stress
Low Medium High Coefficient of Friction Low N/A N/A Shearing Low N/A N/A Moisture Regain High High N/A Water Vapor Permeability High High N/A Performance Index Optimal Optimal Optimal Score Score Score N/A = not applicable.
This test was completed in a much shorter time min) than compression stress
relaxation and permanent set experiments.
On the basis of the information developed using the compression stress
relaxation method, ISO 3884(A), the design engineer is, however, still not able to create the right geometry for a static seal because all measurements are made at the temperature of the aging.
Determination of compression stress
by 10% deformation
The increment in ground compression stress
deforms its skeleton and causes the recession of water from pores.
Since the model predicts that an increase in the radius of the bone indenter should reduce the peak compression stress
in underlying muscle (Appendix), the pathoanatomy of the IT in subjects with paraplegia may theoretically have some protective effect as related to DTI, but it is counteracted by the loss of muscle thickness that increases muscle stresses.
Table 2 underlines the behavior of these TPV grades in compression stress
relaxation at 23[degrees]C (73[degrees]F).
In the keys plane shear forces T induce a compression stress
The same explanation is suitable for the longitudinal surface stress that changed from tension stress to compression stress
under high temperature.
Gore & Associates are designed for positive sealing of aggressive fluid piping applications on fragile flanges or flanges with irregularities, where bolt torque and gasket compression stress
must be limited.
Instruments featured in this catalog include the H14 Macro IRHD hardness tester, bench hardness testers, the H12 Micro IRHD hardness tester, test blocks and sample tables, the H17 durometer scale hardness tester, pocket durometer accessories, H15/H16 pocket durometers, the P14 rapid plastimeter, the O14 aging chamber, the P2 Williams plastimeter, the L15 Gehman tester, the D15 moving die rheometer, the V15 Mooney viscometer, the O7E multi-cell aging oven, the C11 compression stress
relaxometer, the S4 bench thickness gauge, and more.
After completing what were essentially static tests, the o-rings were examined for their dynamic response in a compression stress
relaxation device [7-9].
The beams that contained butt joints at the compression side indicated a low stiffness due to inability of compression stress
transmission across butt joints at the initial stage of bending test.
Testing services provided include abrasion, BFGoodrich flexometer, brittle-point, cold flex/bend, compression deflection, compression set, compression stress
relaxation, DeMattia flex, extension fatigue-to-failure, flexural modulus/ strength, Gehman or Clash-Berg stiffness, heat aging, Izod impact, moving die rheometer, melt flow index and much more.
While compression set is commonly seen as a primary property, many designers prefer to establish compression stress
relaxation (CSR) values to more fully characterize a material's sealing capability.