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One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
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Title: Measuring the mechanical behavior of paperboard in a changing humidity environment

Source: Proceedings of the 1986 International Process and Materials Quality Evaluation Conference. Atlanta : Tappi Press, 1986: pages 245-251.

Author(s)Gunderson, Dennis E.; Considine, John M.

Publication Year: 1986  View PDF »

Category: Journal Articles

Abstract: 'Both the strength and stability of compressively loaded paperboard are known to be adversely affected by cyclic changes in relative humidity. Current research at the Forest Products Laboratory (FPL) seeks to observe and explain this phenomenon and to develop a simple, practical test to determine allowable working loads in cyclicmoisture environments. A new research apparatus has been developed to measure creep strain, stiffness, and strength in constant and changing humidity environments. Early results link cyclic change in relative humidity with significant loss in compressive strength and suggest the existence of a critical load value above which cyclical humidity changes are progressivelydestructive to the integrity of the web structure. Current efforts are directed toward evaluating the relationship between strength loss, creep load, rate of humiditychange, and number of humidity cycles. We anticipate this work will result in a method for derating the compression strength of paperboard when used in applications involving changes in moisture content.'

Keywords: Mechanical properties, creep, moisture, paperboard, strength, humidity, strain, transient effects

File size: 107 kb(s)

This publication is also viewable on Treesearch:  view
RITS Product ID: 3748
Current FPL Scientist associated with this product
Considine, John M.
Materials Research Engineer

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