Titlebook: MATLAB Guide to Finite Elements; An Interactive Appro Peter I. Kattan Textbook 20031st edition Springer-Verlag Berlin Heidelberg 2003 CD-RO

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The Spring Element,the simplest finite element available. Each spring element has two nodes as shown in Figure 2.1. Let the stiffness of the spring be denoted by .. In this case the element stiffness matrix is given by (see references [1], [8], and [18]).

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The Linear Bar Element,ons and is identical to the spring element except that the stiffness of the bar is not given directly. The linear element has modulus of elasticity ., cross-sectional area ., and length .. Each linear bar element has two nodes as shown in Figure 3.1. In this case the element stiffness matrix is give

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The Plane Truss Element, plane truss element has modulus of elasticity ., cross-sectional area ., and length .. Each plane truss element has two nodes and is inclined with an angle . measured counterclockwise from the positive global . axis as shown in Figure 5.1. Let . cos . and . = sin .. In this case the element stiffne

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