Technical Articles

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THE TRANSITION FROM STATIC TO DYNAMIC FRICTION

Coefficient of Friction Apparatus - Measuring the transition from static to dynamic friction can pose instrumentation challenges because as soon as the onset of motion has been detected, the coefficient of friction has already started to change from static to dynamic.

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PUNCTURE TESTING - a new approach

Impact Puncture Testing More accuate and more user friendly that a Falling Dart Method.

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SLIDING FRICTION CAN HOLD SOME SURPRISES

Sliding Friction Between Plastic Surfaces - Rarely produce a constant coefficient of friction value.

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NOTCHING CUTTER -Plays a vital role in Impact Testing

The Notching Cutter is often not given the same prioity or attention as the actual test equipment that perform the tests. However, inferior test samples can never give accurate results no matter how good the test equipment is.

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THERMAL SHRINKAGE OF PLASTIC FILMS

Thermal Shinkage of Film Materials - It is predominately a characteristic of the production methods which induces residual stresses within the material.

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