In order to be able to develop safe ranges of temperature variation for both cultural materials and objects constructed from them, certain requirements need to be met and considerable information determined. These included: determining accurate mechanical and thermal properties of polymeric materials; determining their failure mechanisms; relating thermal behavior to the mechanical and thermal properties of materials; establishing a mechanical property criterion for setting thermal limits; developing an understanding of the worst case structural conditions that would most likely be found in objects constructed of multiple materials, and developing analytical models to assess the behavior of temperature on the objects constructed of multiple materials.

This project required that we make the critical connection between the mechanical properties of materials and their thermal behavior.  Further, it was necessary to start an active dissemination of the information through published papers, conferences and seminars.

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National Center for Preservation Technology and Training
645 University Parkway
Natchitoches, LA 71457

Email: ncptt[at]nps.gov
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