Formulation of the finite element characteristics of an elastic bar element is based on the following assumptions: 1.The bar is geometrically straight. 2.The material obeys Hooke’s law. This makes it a bit “funny”. Such elements are applicable for the analysis of the skeletal type of truss structural systems both in two-dimensional planes and in three-dimensional space. 1. The finite element method (FEM) is a numerical method for solving problems of engineering and mathematical physics. Abstract. It is also referred to as finite element analysis (FEA). Approximate methods for solving differential equations using trial solutions are even older in origin. The finite element method (FEM), sometimes referred to as finite element analysis (FEA), is a computational technique used to obtain approximate solutions of … The finite element method (FEM) is a powerful technique originally developed for numerical solution of complex problems in structural mechanics, and it remains the method of choice for complex systems.In the FEM, the structural system is modeled by a set of appropriate finite elements interconnected at discrete points called nodes. The one-dimensional element developed is commonly known as the truss element or bar element.Such elements are applicable for analysis of skeletal-type truss structural systems both in two-dimensional planes and in three-dimensional space. This chapter discusses the development of a finite element method (FEM) for truss members. The problem is with names. Skudai s.h.yeak@utm.my 012-7116604 Feb 2012 1 A truss is a structural element that is designed to support only axial forces, therefore it deforms only in its axial direction. FEM: Method for numerical solution of field problems. Elements have dimensions as well! They may be referring to a 2D space in your model or to the use of plate elements. Keywords: Finite Element Method, Direct Stiffness Method, Structural Analysis, Two Dimensional Truss Analysis. After all, you don’t know what someone means if they say “2D FEA”. Plate elements are often called “2D elements” while solid elements are “3D elements”. The element developed is commonly known as the truss element or bar element. Typical problem areas of interest include structural analysis, heat transfer, fluid flow, … INTRODUCTION The mathematical root of the finite element method goes back to the history at least a half century. -Then reconnects elements at “nodes” as if nodes were pins or drops of glue that hold elements together.-This process results in a set of simultaneous algebraic equations. Finite Element Method MSM 1333 Chapter 3.2 spring & truss Prepared by: Dr. Yeak Su Hoe C22-432, U.T.M. Finite element equations for such truss members will be developed in this chapter. The cross-section of the bar can have arbitrary geometry, but its dimensions should be much smaller than the bar length. 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