tailieunhanh - dohrmann Episode 2 Part 4

Tham khảo tài liệu 'dohrmann episode 2 part 4', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Figure 14 Normalized shear stress ƠỊ2 at centroids of elements with edges on the slave boundary for mesh configuration Q4Q4 Case 2 . 29 A Method for Connecting Dissimilar Finite Element Meshes in Three Dimensions 1 c. R. Dohrmann2 s. w Key3 M. w. Heinstein3 Abstract. A method is presented for connecting dissimilar finite element meshes in three dimensions. The method combines the concept of master and slave surfaces with the uniform strain approach for finite elements. By modifying the boundaries of elements on the slave surface corrections are made to element formulations such that first-order patch tests are passed. The method can be used to connect meshes which use different element types. In addition master and slave surfaces can be designated independently of relative mesh resolutions. Example problems in three-dimensional linear elasticity are presented. Key Words. Finite elements connected meshes uniform strain contact. Sandia is a multiprogram laboratory operated by Sandia Corporation a Lockheed Martin Company for the United States Department of Energy under Contract DE-AL04-94AL8500. Structural Dynamics Department Sandia National Laboratories MS 0439 Albuquerque New Mexico 87185-0439 email crdohrm@ phone 505 844-8058 fax 505 844-9297. 3Engineering and Manufacturing Mechanics Department Sandia National Laboratories MS 0443 Albuquerque New Mexico 87185-0443. 1. Introduction In order to perform a finite element analysis one may be required to connect two meshes at a shared boundary. Such requirements are common when assembling system models from separate subsystem models. One approach to connecting the meshes requires that both meshes have the same number of nodes the same nodal coordinates and the same interpolation functions at the shared boundary. If these requirements are met then the two meshes can be connected simply by equating the degrees of freedom of corresponding nodes at the shared boundary. As might be expected connecting meshes in this

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