![]() A truss element’s axial spring stiffness is define as k = (Area x Modulus of Elasticity) / Length. The axial stress Sx = Force / Area, and the axial displacement of its node Ux = (Force x Length) / (Area x Modulus of Elasticity). Note: Trusses are commonly used in architectural and structural applications such as bridges, roofs, power towers, and others. ![]() A node can only have displacements in 3 orthogonal directions. A truss element has only two nodes, one at either end of a member. The axial force which causes an axial stress on the member is constant along the member length and uniform across the cross-section area of the member. Only axial forces are developed in each member. So, no moment, torsion, or bending stress results can be expected from a simulation with truss elements. The joints in this class of structures are designed so that no moments develop in them. ![]() ![]() Truss elements are special beam elements that can resist axial deformation only. However, any engineer dealing with structural member analysis can use this functionality to save time on design or evaluation of their structures. This article might be more useful for mechanical or civil engineering studies. This article will show you how to model and analyze truss problems in SOLIDWORKS Simulation.
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