ISSN:
1435-1528
Keywords:
Boltzmann-Volterra material
;
stress-strain relation
;
relaxation experiment
;
parameter identification
;
principle ofinertia
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Abstract Starting from the general stress-strain relation for a linear Boltzmann-Volterra material, which is in agreement with the “principle of inertia”, a new identification procedure is proposed. Instead of running one long-range relaxation experiment, following asingle suitably specified deformation history, material characterization is done using the data ofn short relaxation experiments followingn different deformation histories. To interpret these data a direct non-iterative algorithm has been developed. Compared with other methods, for example curve fitting by using Gauss' method, this direct method is numerically stable and allows a simple direct evaluation of the error due to the scattering of experimental data. The method has been applied to the determination of the relaxation times of an unsaturated polyester material.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01332157
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