As such, only nodal loads are allowed, while supports – also specified at nodes – may involve both fixed hinges and rollers, this latter type nclines from the horizontal line at an angle specified by the user. The Apeiron Truss 2D FEM code implements the linear finite element method with linear truss elements for calculating planar truss structures of arbitrary geometry, material properties and loading. The application can become a useful aid on the one hand for engineering students during their studies in checking hand calculations, solving trusses of large element number, or even in getting familiar with the basic steps of the finite element method (FEM) and on the other for practicing engineers in quick on-site verification of simple problems fitting into the realm of this highly confined family of structures.
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