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Research article1991Peer reviewed

A new method to detect anisotropy and local variations in paper

Olofsson, Kenneth; Molin, Nils Erik; Kyösti, Anders

Abstract

The mechanical properties of paper were studied using holographic interferometry. Bending wave propagation in paper was generated by the impact of a small pendulum. Holograms were produced at various times elapsed after impact with the use of a double-pulsed ruby laser. Results show that this method can be used to detect anisotropy, to determine principle directions (machine and cross-machine), and to examine local variations in paper.

Keywords

ANALYSIS; PAPER PROPERTIES; TENSILE STRENGTH; TESTING

Published in

Tappi Journal
1991, Volume: 74, number: 3, pages: 195-200
Publisher: TECH ASSN PULP PAPER IND INC

    UKÄ Subject classification

    Applied Mechanics

    Permanent link to this page (URI)

    https://res.slu.se/id/publ/52710