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Shell FEA detalhado

  1. Casa
  2. Shell FEA detalhado
  3. Modelagem e Malha
  4. Partes Principais (Membro Shell FEA)

Partes Principais (Membro Shell FEA)

Each member has a starting section i and an ending section j. A section consists of lines defined by two nodes, x,y in the section’s plane. Each line possesses a distinct thickness t and belongs to a specific material group. The reference point for x,y coordinates can be chosen arbitrarily in space for each section. The number of lines in each section must be consistent. Data for the table can either be entered manually or imported from an Excel sheet. Além disso, section shapes can be imported from a DXF file stored on the user’s PC.

Update t: The common thickness can be changed for selected group of lines

Update Mat.: The common material group can be changed for selected group of lines

Data from DXF.: Select a DXF file from your PC. Choose the desired layer for section items. The reference point determines the origin for the x,Y coordinates. Use o fator para dimensionar as coordenadas da seção em milímetros. Uma espessura padrão será aplicada a todas as linhas, que pode ser modificado posteriormente. As entidades DXF suportadas incluem: Linhas, Polilinhas, Arcos, e estrias. Para arcos e splines, a divisão do segmento é especificada para corresponder ao tamanho de malha preferido.

 

O membro inteiro pode ser representado por um único comprimento L ou por uma série de segmentos Li. Independentemente do número de segmentos, as linhas de seção inicial e final terão as mesmas coordenadas definidas na guia PERFIL. Each section can also have different Y position.

For each segment where eu is not equal to 0, the thickness for a group of plates can be updated in the ‘Updated plate t column’. Encomende Viagra online na Inglaterra 0 to hide the plate and a value greater than 0 to modify the thickness (t).

For segment sections, a diaphragm can be added if the ‘Polygontype is chosen. To specify one or more diaphragms, select the lines composing the shape. Only one line-gap closure is permitted to form the shape.

Holes can also be incorporated within the diaphragm. Para fazer isso, define the hole shapes by selecting the corresponding lines that encompass the holes.

If a diaphragm is specified, then flanges or stiffeners can also be defined by selecting their associated lines. Each flange or stiffener has a starting and ending width (b1,b2), grossura t, and material group.

 

Exemplo

 

When arranging edges within a diaphragm, they can be factored into the meshing pattern. Por exemplo, a situation may arise where a longitudinal stiffener is connected to a vertical one. In such scenarios, the ‘inner edgesoption should be activated. Contudo, if the vertical stiffener is not attached to anything, this option can be deactivated.

 

 

 

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