Bending energy of highly elastic membranes
Authors:
M. G. Hilgers and A. C. Pipkin
Journal:
Quart. Appl. Math. 50 (1992), 389-400
MSC:
Primary 73K10; Secondary 73G05
DOI:
https://doi.org/10.1090/qam/1162282
MathSciNet review:
MR1162282
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Abstract: For a membrane composed of elastic material with strain energy $W$ per unit initial volume, approximations to the energy per unit initial area are obtained by integrating $W$ through the thickness. The usual stretching energy $M\left ( {{r_{,a}}} \right )$ is modified by including a bending energy term $\alpha B\left ( {{r_{,a}}, {r_{,ab}}} \right )$ that is quadratic in the second derivatives ${r_{,ab}}$. If $W$ is the strain energy function for a stable material, $M$ need not satisfy the Legendre-Hadamard material stability conditions, but the modified energy $M + \alpha B$ does satisfy these conditions. The special form that $B$ takes when the membrane is isotropic is given.
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A. E. Green and W. Zerna, Theoretical Elasticity, Oxford Univ. Press, London and New York, 1954
A. C. Pipkin, The relaxed energy density for isotropic elastic membranes, IMA J. Appl. Math. 36, 85–99 (1986)
M. G. Hilgers and A. C. Pipkin, Elastic sheets with bending stiffness, QJMAM, forthcoming.
J. M. Ball, J. C. Currie, and P. J. Olver, Null Lagrangians, weak continuity, and variational problems of arbitrary order, J. Funct. Anal. 41, 135–174 (1981)
G. Kirchhoff, Uber das Gleichgewicht und die Bewegung einer elastischen Scheibe, J. Reine Angew. Math. 40, 51–88 (1850)
L. M. Graves, The Weierstrass condition for multiple integral variation problems, Duke Math. J. 5, 656–660 (1939)
W.-B. Wang and A. C. Pipkin, Inextensible networks with bending stiffness, Quart. J. Mech. Appl. Math. 39, 343–359 (1986)
A. E. H. Love, A Treatise on the Mathematical Theory of Elasticity, 4th ed., Dover, New York, 1944
M. G. Hilgers and A. C. Pipkin, Energy-minimizing deformations of elastic sheets with bending stiffness, J. Elast., forthcoming.
L. van Hove, Sur l’extension de la condition de Legendre du calcul des variations aux integrales multiples à plusieurs fonctions inconnues, Nederl. Akad. Wetensch. Indag. Math. 50, 18–23 (1947)
R. W. Odgen, Non-linear Elastic Deformations, Ellis Horwood, Chichester, 1984
J. K. Knowles and Eli Sternberg, On the failure of ellipticity of the equations for finite elastostatic plane strain, Arch. Rational Mech. Anal. 63, 321–336 (1977)
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Article copyright:
© Copyright 1992
American Mathematical Society