Summary
Elastic solids with large strains are treated in the fraxne of poly convex materials so that the existence of solutions for boundary value problems can be ensured. Especially Neo-Hooke materials and a constitutive equar tion due to Ciarlet are treated both in material and spatial description.
A finite-element-algorithm is developed starting from the Fréchet-derivative of the principle of virtual work in material coordinates. Pushingforward this linearized form to the current configuration, performing the iteration process in this state yields a Newton method with reference to the current configuration. Isoparametric 8-node 3-D elements are most efficient for the numerical process and used for the following examples such as a bar, tensioned to nearly the double length and compressed to nearly the half length. Both examples were calculated in one increment with 4, respective 6 iteration steps.
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Literature
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© 1987 Martinus Nijhoff Publishers, Dordrecht
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Stein, E., Mneller-Hoeppe, N. (1987). Finite- Element-analysis and Algorithms for Large Elastic Strains. In: Pande, G.N., Middleton, J. (eds) Numerical Techniques for Engineering Analysis and Design. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3653-9_4
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DOI: https://doi.org/10.1007/978-94-009-3653-9_4
Publisher Name: Springer, Dordrecht
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