期刊
JOURNAL OF ELASTICITY
卷 74, 期 1, 页码 67-86出版社
KLUWER ACADEMIC PUBL
DOI: 10.1023/B:ELAS.0000026106.09385.8c
关键词
shell; phase transition; singular curve; rotation; nonlinear elasticity
We develop the general nonlinear theory of elastic shells with an account of phase transitions in the shell material. Our formulation is based on the dynamically and kinematically exact through-the-thickness reduction of three-dimensional description of the phenomenon to the two-dimensional form written on the shell base surface. In this model shell displacements are expressed by work-averaged translations and rotations of the shell cross-sections. All shell relations are then found from the variational principle of the stationary total potential energy. In particular, we derive the new global dynamic continuity condition at the singular surface curve modelling the phase interface. We also discuss particular forms of the local dynamic continuity conditions at coherent and incoherent interface curves. The results are illustrated by an example of a phase transition in an infinite plate with a circular hole.
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