Extensional Elastica in large deformation as $$\Gamma $$Γ-limit of a discrete 1D mechanical system
Extensional Elastica in large deformation as $$\Gamma $$Γ-limit of a discrete 1D mechanical system
复制标题
大变形中的拉伸弹性体作为离散一维机械系统的 $$Gamma $$Γ 极限
DOI:
10.1007/s00033-017-0785-9
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
A. Battista
中科院分区:
文献类型:
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作者:
J. Alibert;A. Della Corte;I. Giorgio;A. Battista
The present paper deals with the rigorous homogenization of a discrete system consisting of extensible rods linked by rotational springs. Specifically, a $$\Gamma $$Γ-convergence result is proven for a sequence of discrete measure functionals $$E_{n}$$En, describing the energy of the discrete system, toward the continuous energy functional for the extensible Euler beam model (Elastica) in large deformation regime. A relative compactness result for the sequence $$E_{n}$$En is also proven. Moreover, numerical results are shown on the deformed shape and on the total energy of the system when the number of elements of the discrete system increases. The numerical convergence of the energy to a definite value is shown in two cases. The results provide rigorous justification of a very commonly used algorithm for the discretization of the extensible Euler beam, namely Hencky-type beam model.
DOI:
10.1007/978-981-10-0959-4_28
发表时间:
2016
期刊:
影响因子:
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作者:
F. Dell’isola;Bucci S;A. Battista
通讯作者:
A. Battista
DOI:
10.1007/s00033-016-0701-8
发表时间:
2016
期刊:
Zeitschrift für angewandte Mathematik und Physik
影响因子:
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作者:
L. Placidi;L. Greco;Bucci S;E. Turco;N. L. Rizzi
通讯作者:
N. L. Rizzi