An 8‐node brick finite element

International Journal for Numerical Methods in Engineering - Tập 20 Số 3 - Trang 523-528 - 1984
Matti J. Loikkanen1, Bruce M. Irons2
1SDC, Santa Monica, California, U.S.A.
2University of Calgary, calgary, Alberta, canada

Tóm tắt

AbstractAn 8‐node brick element based on the assumed stress hybrid formulation is described. With three additional stress fields, the element stiffness matrix now has the required rank of 18, and the ‘bending’ response is exact with rectangular elements. Surprisingly, the 2 × 2 × 2 Gauss rule suffices for all numerical integrations, to satisfy the constant stress patch test.

Từ khóa


Tài liệu tham khảo

10.1016/B978-0-12-253250-4.50008-7

10.1002/nme.1620100602

Pian T. H. H., 1964, Derivation of element stiffness matrices by assumed stress distribution, A.I.A.A. J., 2, 1333

Pian T. H. H., 1973, Numerical and Computer Methods in Structural Mechanics, 59

Irons B. M., 1973, An assumed stress version of the Wilson 8‐node isoparametric brick

M. J.Loikkanen ‘Hybrid finite elements with shape function subroutine’ Ph.D. thesis Univ. of Calgary (1982).

J.Barlow Private communication Rolls‐Royce Ltd. Derby England (1980).

10.1115/1.3153836

10.1002/nme.1620190908

Thông tin
Thông tin xuất bản

International Journal for Numerical Methods in Engineering

Tập 20 Số 3

523-528

Thông tin tác giả