Comparison of Wall Friction Measurements by Jenike Shear Tester and Ring Shear Tester

Comparison of plasticity and stiffness of steel shear walls with composite steel plate shear wall

The steel shear wall and composite steel plate shear wall is introduced in recent three decade and is considered and is spread rapidly. Composite steel plate shear wall which is made of a layer of thin steel sheet with coating of reinforced concrete in one or both sides of steel palate is considered a third generation of resistance shear walls against lateral loads that in addition to increasin...

Friction of polymer hydrogels studied by resonance shear measurements.

The friction between an elastomer and a hard surface typically has two contributors, i.e., the interfacial and deformation components. The friction of viscoelastic hydrogel materials has been extensively studied between planar gel and planar substrate surfaces from the viewpoint of an interfacial interaction. However, the geometry of the contact in practical applications is much more complex. T...

Possible Deviations in the Determination of Bulk Solid Characteristics, Caused by the Loading Mechanism of the Jenike Shear Cell

In the literature ample attention is given to the assumptions on which the interpretation of shear-test results from a Jenike shear tester are based. Very little is said, however, about the influence on the test data of the construction of the apparatus itself. In the work described here, the authors have investigated the influence of the loading mechanism on the results. The original Jenike-ty...

A blind spot tester.

Uw Vlsi Chip Tester

We present a design for a low-cost, functional VLSI chip tester. It is based on the Apple Macintosh II personal computer. It tests chips that have up to 128 pins. All pin drivers of the tester are bidirectional; each pin is programmed independently as an input or an output. The tester can test both static and dynamic chips. Rudimentary speed testing is provided. Chips are tested by executing C ...