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A General Method for Determining the Mechanical Properties Needed for the Computer Analysis of Polymeric Structures Subjected to Changes in Temperature and Relative Humidity

Published online by Cambridge University Press:  28 February 2011

Marion F. Mecklenburg ,
Charles S. Tumosa  and
Mark H. McCormick-Goodhart
Marion F. Mecklenburg
Affiliation:
Conservation Analytical Laboratory Smithsonian Institution, Washington
Charles S. Tumosa
Affiliation:
Conservation Analytical Laboratory Smithsonian Institution, Washington
Mark H. McCormick-Goodhart
Affiliation:
Conservation Analytical Laboratory Smithsonian Institution, Washington
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Abstract

This study examines the methods for determining the effects of temperature and relative humidity (RH) on the dimensional and mechanical properties of artists' materials. Using both of these properties, typical cultural objects, such as paintings and photographs can be modeled on the computer to correlate the magnitude of developed stresses to environmental changes. Comparing these calculated stresses with the measured strength of the materials provides the opportunity to assess the potential risk from damage due to environmental change. Recognizing that the mechanical properties of polymeric materials are functions of the rate of the application of load, the time they are subjected to a load, the temperature and the relative humidity, it becomes a question of identifying those parameters that are the most important in determining the correct information needed for computer modeling.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 267: Symposium J – Materials Issues in Art and Archaeology III , 1992 , 337
Copyright
Copyright © Materials Research Society 1992

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References

Footnotes

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