ISSN:
1435-1528
Schlagwort(e):
Segmented polyurethane
;
elasticity
;
shear
;
strain energy density function
;
Poisson's ratio
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
,
Physik
Notizen:
Abstract Elastic properties of segmented polyurethaneureas (SPUs) under pure shear deformation were investigated. Data were analyzed by using strain energy density function (W). The values of the derivatives of W with respect to the invariants of the strain tensor (I i ; i = 1, 2, 3 ) at zero strain limit were also estimated theoretically and were compared with those estimated by experiment. The limiting value of the derivative with respect to I 1 (∂W/∂I 1) was shown theoretically to be 5 G/8, while the derivatives with respect to I 2 and I 3 (∂W/∂I 2 and ∂W/∂I 3 were respectively-G/8 and -3G/8. The theoretical prediction could explain the asymptotic behavior of the derivatives of SPUs as well as isoprene rubber (IR) reported by Kawabata et al. at small I 1 limit.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00366915
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