Una estructura consta de una viga de sección en I y dos cerchas tubulares. The structure contains several imperfections and it is loaded by the force Fz. El peso propio se omite en este ejemplo. Determine the deflections uy and uz and axial rotation φx at the endpoint (Point 4). El ejemplo de verificación se basa en el ejemplo presentado por Gensichen y Lumpe.
Este ejemplo de verificación se basa en el ejemplo de verificación 0122. A single-mass system without damping is subjected to an axial loading force. An ideal elastic-plastic material with characteristics is assumed. Determine the time course of the end-point deflection, velocity, and acceleration.
Una estructura superficial simétrica se compone de ocho barras de celosía iguales, que están incrustadas en los apoyos de las articulaciones. The structure is loaded by a concentrated force and alternatively by imposed nodal deformation over the critical limit point when the snap-through occurs. Imposed nodal deformation is used in RFEM 5 and RSTAB 8 to obtain the full equilibrium path of the snap-through. The self-weight is neglected in this example. Determine the relationship between the actual loading force and the deflection, considering large deformation analysis. Evaluate the load factor at the given deflections.
Un tubo con una sección tubular está cargado por una presión interna. This internal pressure causes axial deformation of the pipe (the Bourdon effect). Determine the axial deformation of the pipe endpoint.
Una estructura se compone de cuatro barras de celosía, que están incrustadas en apoyos de articulación. The structure is loaded by a concentrated force and alternatively by imposed nodal deformation over the critical limit point, when snap-through occurs. Imposed nodal deformation is used in RFEM 5 and RSTAB 8 to obtain the full equilibrium path of the snap-through. The self-weight is neglected in this example. Determine the relationship between the actual loading force and the deflection, considering large deformation analysis. Evaluate the load factor at given deflections.
Un cable muy rígido está suspendido entre dos apoyos. Determine the equilibrium shape of the cable (the catenary), consider the gravitational acceleration, and neglect the stiffness of the cable. Verify the position of the cable at the given test points.
Un sistema monomasa con amortiguador está sometido a una fuerza de carga constante. Determine the deflection and velocity of the dashpot endpoint in the given test time.
Una cuerda delgada se tensa por la deformación inicial y se desvía inicialmente. Determine the deflection of the test point at the given test times.
El objetivo de este ejemplo es demostrar un proceso irreversible causado por la fricción. After the loading and unloading, the end-point is in a different position than where it was at the beginning. Determine the movement of the node in the X direction.
Una estructura hecha de un perfil en I está completamente fijada en el extremo izquierdo y empotrada en el apoyo deslizante en el extremo derecho. The structure consists of two segments. The self-weight is neglected in this example. Determine the maximum deflection of the structure, the bending moment on the fixed end, the rotation of segment 2, and the reaction force at point B by means of the geometrically linear analysis and the second-order analysis. The verification example is based on the example introduced by Gensichen and Lumpe.
Una estructura hecha de cerchas de perfil en I está apoyada en ambos extremos mediante apoyos deslizantes de muelles y cargada por fuerzas transversales. The self-weight is neglected in this example. Determine the deflection of the structure, the bending moment, the normal force in the given test points, and the horizontal deflection of the spring supports.
Un voladizo de perfil en I está apoyado en el extremo izquierdo y cargado por el par. The aim of this example is to compare the fixed support with the fork support and to investigate the behavior of some representative quantities. Comparison is also made to the solution by means of plates. Small deformations are considered, and the self-weight is neglected. Determine the rotation in the midpoint of the cantilever, and in case of the member entity with warping, determine the values of the primary torsional moment, the secondary torsional moment, and the warping moment both on the left end (point A) and the right end (point B).
A cantilever beam with an I-beam cross-section of length L is defined. The beam has five mass points with masses m acting in the X-direction. Se omite el peso propio. The frequencies, mode shapes, and equivalent loads of this 5-DOF system are analytically calculated and compared with the results from RSTAB and RFEM.