Surface energies arising in microscopic modeling of martensitic transformations
In this paper we construct and analyze a two-well Hamiltonian on a 2D atomic lattice. The two wells of the Hamiltonian are prescribed by two rank-one connected martensitic twins, respectively. By constraining the deformed configurations to special 1D atomic chains with position-dependent elongation...
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| Main Authors: | , , |
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| Format: | Article (Journal) Chapter/Article |
| Language: | English |
| Published: |
21 Feb 2014
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| In: |
Arxiv
Year: 2014, Pages: 1-41 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: http://arxiv.org/abs/1402.5256
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| Author Notes: | Georgy Kitavtsev, Stephan Luckhaus, and Angkana Rüland |
| Summary: | In this paper we construct and analyze a two-well Hamiltonian on a 2D atomic lattice. The two wells of the Hamiltonian are prescribed by two rank-one connected martensitic twins, respectively. By constraining the deformed configurations to special 1D atomic chains with position-dependent elongation vectors for the vertical direction, we show that the structure of ground states under appropriate boundary conditions is close to the macroscopically expected twinned configurations with additional boundary layers localized near the twinning interfaces. In addition, we proceed to a continuum limit, show asymptotic piecewise rigidity of minimizing sequences and rigorously derive the corresponding limiting form of the surface energy. |
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| Item Description: | Gesehen am 27.05.2021 |
| Physical Description: | Online Resource |