0
research-article

Bending Mechanics of Aged Paper

[+] Author and Article Information
Andrea K.I. Hall

Heritage Science for Conservation, The Sheridan Libraries, Johns Hopkins University 3400 N. Charles Street Baltimore, MD 21218
ahall59@jhu.edu

Thomas C. O'Connor

Department of Physics and Astronomy, Johns Hopkins University 3400 N. Charles Street Baltimore, MD 21218
toconnor@jhu.edu

Molly K. McGath

Heritage Science for Conservation, The Sheridan Libraries, Johns Hopkins University 3400 N. Charles Street Baltimore, MD 21218
molybdenumart@gmail.com

Patricia M. McGuiggan

Heritage Science for Conservation, The Sheridan Libraries, Johns Hopkins University 3400 N. Charles Street Baltimore, MD 21218Department of Materials Science and Engineering
mcguiggan@jhu.edu

1Corresponding author.

ASME doi:10.1115/1.4039881 History: Received February 15, 2018; Revised March 30, 2018

Abstract

Brittleness in paper is one of the primary reasons library books are removed from circulation, digitized, or have their access limited. Yet, paper brittleness is difficult to characterize as it has multiple definitions and no single measurable physical or chemical property associated with it. This study reevaluates the cantilever test as applied to aged papers. In this non-destructive test, the deflection of a strip of paper held horizontally is measured across its length. The deflection data is then fit to non-linear bending theories assuming large deflection of a cantilever beam under a combined uniform and concentrated load. Fitting the shape of the deflection profiles provides bending and elastic moduli, the bending length, and confirms the paper sheets respond linearly. The results are compared to those calculated from a simplified single point measurement of the maximum deflection of the cantilevered sample. The Young’s modulus measured by the cantilever test is lower for paper-based materials than that measured by tensile testing and the bending modulus was found to correlate with the destructive MIT fold endurance test.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In