L'exemple de vérification décrit les charges de pression sur les voiles des bâtiments disposés en parallèle au niveau du sol. The buildings are simplified to rectangular objects and scaled down while maintaining the elevation ratios. The pressure distribution on the walls of the model of a medium-high building was conducted by an experiment. The chosen results (pressure coefficient Cp) are compared with the measured values.
Une membrane de diaphragme sphérique est remplie de gaz avec une pression atmosphérique et un volume défini (ces valeurs sont utilisées uniquement pour la définition du modèle EF). Determine the overpressure inside the balloon due to the given isotropic membrane prestress. The add-on module RF-FORM-FINDING is used for this purpose. Elastic deformations are neglected both in RF-FORM-FINDING and in the analytical solution; self-weight is also neglected in this example.
Un tuyau de section tubulaire est chargé par une pression interne. This internal pressure causes axial deformation of the pipe (the Bourdon effect). Determine the axial deformation of the pipe endpoint.
Un poteau est composé d'une section en béton (rectangle 100/200) et d'une section en acier (profilé I 200). It is subjected to pressure force. Determine the critical load and corresponding load factor. The theoretical solution is based on the buckling of a simple beam. In this case, two regions have to be taken into account due to different moments of inertia and material properties.
A thin circular ring of a rectangular cross-section is exposed to external pressure. Déterminez la charge critique et le facteur de charge correspondant pour le flambement dans le plan.
Cet exemple est une modification de l'exemple de vérification 0061 ; la seule différence est que le matériau du réservoir est incompressible. An open‑ended, thick‑walled vessel is loaded by both inner and outer pressure. While neglecting self‑weight, the radial deflection of the inner and the outer radius is determined.
A two-layered, open-ended, thick-walled vessel is loaded by inner and outer pressure; therefore, there is no axial stress. En négligeant le poids propre, la flèche radiale des rayons internes et externes, et la pression (contrainte radiale) du rayon central est déterminée.
Quatre poteaux sont encastrés en bas et reliés par un bloc rigide en haut. The block is loaded by pressure and modeled by an elastic material with a high modulus of elasticity. The outer columns are modeled by linear elastic material and the inner columns by a stress-strain diagram with decaying dependence. Assuming only the small deformation theory and neglecting the structure's self-weight, determine its maximum deflection.
Déterminez la flèche maximale du porte-à-faux composé de deux couches de verre et d'une couche de feuille entre les deux. The plate is fully fixed at one end and subjected to uniform pressure.
A vertical cantilever with a square cross-section is loaded at the top by tensile pressure. Le porte-à-faux est en matériau isotrope. Calculate the deflection.
Un bloc tridimensionnel en matériau élastique-plastique est fixé aux deux extrémités. The block's middle plane is subjected to a pressure load. The surface plasticity is described according to the Tsai-Wu plasticity theory.
Déterminez la flèche maximale d'un bloc 3D encastré à ses deux extrémités. The block is divided in the middle: the upper half is made of an elastic material and the lower part is made of timber - an elasto-plastic othotropic material with the yield surface described according to the Tsai-Wu plasticity theory. The block's middle plane is subjected to vertical pressure.
Déterminez la flèche maximale de quatre poteaux encastrés en bas et connectés par un bloc rigide en haut. The block is loaded by pressure and modeled by an elastic material with a high modulus of elasticity. The outer columns are modeled as orthotropic elastic material, and the inner columns as orthotropic elastic-plastic material with the same elastic parameters as the outer columns and plasticity properties defined according to the Tsai-Wu plasticity theory.
Un bloc tridimensionnel en matériau élastique-plastique avec durcissement est fixé aux deux extrémités. The block's middle plane is subjected to a pressure load. The surface plasticity is described according to the Tsai‑Wu plasticity theory.
Déterminez les flèches maximales du bloc en considérant ou en négligeant l'effet de cisaillement. The square block of the isotropic material is fully fixed at one end and loaded with uniform vertical pressure.