Nozzle extraction process and handlemeter for measuring handle
Abstract
Method and apparatus for quantitatively measuring the handle of fabrics and other flexible materials is presented. Handle is that term used to refer to the qualities of drapability, flexibility, compressibility, foldability, stretchability, pliability, etc., possessed by fabrics and other flexible materials. In the present invention the handle of a material sample is quantified by measuring the force required to draw the sample through an orifice and expressing the resultant extractive force as a function of test apparatus geometry and the amount of sample drawn through the orifice to arrive at quantitative measure of handle, to be defined as handle modulus, for the sample in question.
- Publication:
-
National Aeronautics and Space Administration Report
- Pub Date:
- August 1978
- Bibcode:
- 1978nasa.reptS....A
- Keywords:
-
- Compressibility;
- Convergent Nozzles;
- Fabrics;
- Flexibility;
- Displacement Measurement;
- Extraction;
- Modulus Of Elasticity;
- Patents;
- Engineering (General)