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A Simple Collocation Method for Fitting Viscoelastic Models to Experimental Data

Schapery, R. A. (1962) A Simple Collocation Method for Fitting Viscoelastic Models to Experimental Data. California Institute of Technology , Pasadena, CA. (Unpublished)

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An easily applied collocation method is discussed for fitting the response of finite-element viscoelastic models to experimental stress-strain curves. It can be used with creep, relaxation, and steady-state oscillation data. The method is illustrated by means of two examples. As the first one, a model is obtained utilizing the dynamic shear compliance of polyisobutylene. In the second example we calculate a model from the tensile relaxation modulus of polymethyl methacrylate. With each case the model's response agreed with the experimental data within graphical accuracy over the entire frequency (or time) scale.

Item Type:Report or Paper (Technical Report)
Additional Information:© 1962 California Institute of Technology. November 1961, Revised February 1962. This research was supported by the Aeronautical Research Laboratory Office of Aerospace Research United States Air Force Contract No. AF 33(616)-8399, GALCIT 119.
Group:Graduate Aeronautical Laboratories (Solid Mechanics), GALCIT
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)AF 33(616)-8399
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Other Numbering System NameOther Numbering System ID
GALCIT Report SM61-23A
Record Number:CaltechAUTHORS:20141114-115330896
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:51778
Deposited On:14 Nov 2014 21:51
Last Modified:23 Nov 2021 00:29

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