O exemplo de verificação descreve as cargas de pressão nas paredes do edifício em disposição tandem ao nível do solo. 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.
A strut with a circular cross-section is supported according to four basic cases of Euler buckling and subjected to pressure force. Determine a carga de encurvadura crítica.
Uma membrana esférica de balão é preenchida com gás com pressão atmosférica e volume definido (estes valores são utilizados apenas para a definição do modelo de 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.
A pipe with a tubular cross-section is loaded by internal pressure. This internal pressure causes axial deformation of the pipe (the Bourdon effect). Determine a deformação axial do ponto de extremidade do tubo.
A thin rectangular orthotropic plate is simply supported and loaded by uniformly distributed pressure. The directions of axes x and y coincide with the principal directions. Determine a flecha máxima do painel, sem considerar o peso próprio.
A thin circular ring of a rectangular cross-section is exposed to external pressure. Determine a carga crítica e o fator de carga correspondente para a encurvadura no plano.
Este exemplo é uma modificação do Exemplo de verificação 0061; a única diferença é que o material do recipiente é incompressível. 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. É determinada a flecha radial do raio interior e exterior, bem como a compressão (tensão radial), não sendo considerado o peso próprio.
A thick-walled vessel is loaded by an inner pressure such that the vessel reaches an elastic-plastic state. São determinadas e comparadas as soluções analíticas e numéricas para a posição radial da zona de fronteira plástica (de acordo com a hipótese de Tresca), não sendo considerado o peso próprio.
A timber beam reinforced by two steel plates at the ends is loaded by pressure. The wood fibers are parallel to the upper loaded side of the beam. A superfície plástica é descrita de acordo com a teoria da plasticidade de Tsai-Wu.
Quatro pilares estão fixados na parte inferior e ligados por um bloco rígido na parte superior. 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.
Determine a flecha máxima da consola composta por dois painéis de vidro com uma camada intermédia de folha. 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. A consola é feita de um material isotrópico. Calculate the deflection.
Nas duas extremidades, está fixado um bloco tridimensional de material elástico-plástico. The block's middle plane is subjected to a pressure load. The surface plasticity is described according to the Tsai-Wu plasticity theory.
Determine the maximum deflection of a three-dimensional block fixed at both ends. 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. O plano central do bloco está sob pressão vertical.
Determine a flecha máxima de quatro pilares fixados na parte inferior, os quais estão ligados por um bloco rígido na parte superior. 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.
A timber beam reinforced by two steel plates at the ends is loaded by pressure. The wood fibers are parallel to the upper loaded side of the beam. A superfície plástica é descrita de acordo com a teoria da plasticidade de Tsai-Wu.
Nas duas extremidades, está fixado um bloco tridimensional de material elástico-plástico com endurecimento. The block's middle plane is subjected to a pressure load. The surface plasticity is described according to the Tsai‑Wu plasticity theory.
Determine as flechas máximas do bloco, tendo em consideração ou negligenciando o efeito de corte. The square block of the isotropic material is fully fixed at one end and loaded with uniform vertical pressure.