Study on compressional energy contribution into total energy of pile deformation in cut-pile carpet

Abstract

Compression behavior is one of the most important properties of the carpets. In this study, a new theoretical model has been presented in which total energy of pile deformation in cut-pile carpet including bending energy of pile deformation, frictional loose energy due to sliding pile yarns, and compressional energy due to piles jamming at the end of pile deformation process has been calculated. Then, derived equations have been solved by computer software and calculated theoretical values have been compared with experiment. Results show that compressional energy has no remarkable contribution into total energy of pile deformation. Also, difference between theoretical results and experiment is not large, and presented theory can well predict compression behavior of the cut-pile carpet. Meanwhile, new proposed model could not improve previous presented theory.

Keywords:

• cut-pile carpet
• compression
• compressional energy
• pile deformation

Acknowledgment

I would like to express my sincere thanks to Dr. Saeed Shaikhzade Najar and Amirkabir university of technology (Tehran Polytechnique) for their particular help in theory development and carpet loading tests, respectively.