{ "id": "2403.18217", "version": "v1", "published": "2024-03-27T02:59:20.000Z", "updated": "2024-03-27T02:59:20.000Z", "title": "Mixed Variational Formulation of Coupled Plates", "authors": [ "Jun Hu", "Zhen Liu", "Rui Ma", "Ruishu Wang" ], "categories": [ "math.NA", "cs.NA" ], "abstract": "This paper proposes a mixed variational formulation for the problem of two coupled plates with a rigid {junction}. The proposed mixed {formulation} introduces {the union of} stresses and moments as {an auxiliary variable}, which {are} commonly of great interest in practical applications. The primary challenge lies in determining a suitable {space involving} both boundary and junction conditions of the auxiliary variable. The {theory} of densely defined operators in Hilbert spaces is employed to define {a nonstandard Sobolev space} without the use of trace operators. The well-posedness is established for the mixed formulation. Based on these conditions, this paper provides a framework {of} conforming {mixed} finite element methods. Numerical experiments are given to validate the theoretical results.", "revisions": [ { "version": "v1", "updated": "2024-03-27T02:59:20.000Z" } ], "analyses": { "keywords": [ "mixed variational formulation", "coupled plates", "finite element methods", "nonstandard sobolev space", "primary challenge lies" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }