Surface Stiffness

词汇表条目

The stiffness of a surface describes the relation between the load acting on the surface and the elastic deformation of the surface. The stiffness depends on the material (elastic modulus, shear modulus, Poisson's ratio) as well as on the geometry (for example, length, width, height).

In general, a distinction is made between the following relative stiffnesses:

  • Bending stiffness
  • Torsional stiffness
  • Shear stiffness
  • Strain stiffness

Stiffness Types in RFEM

  • Standard (isotropic surface)
  • Without membrane tension (like Standard but failure of membrane stiffness under tension)
  • Orthotropic (orthotropic surface, different stiffnesses in the x- and y-direction of finite elements)
  • Glass (for surfaces made of glass, created by the RF-GLASS add-on module)
  • Laminate (laminate theory, created by the RF-LAMINATE add-on module)
  • Rigid (surfaces with very high stiffness)
  • Membrane (surfaces with membrane stiffnesses only)
  • Membrane - Orthotropic (different membrane stiffnesses in the x- and y-direction of finite elements)
  • Null (surfaces will be ignored in the calculation, necessary for solids)

关键词

stiffness stiffness matrix surface orthotropic

链接

RFEM 主程序 RFEM
RFEM 5.xx

主程序

结构设计与有限元­分析软件(FEA)可以用于建立 平面与空间结构模型,适用于由杆件、面、 板、墙、折板、膜、壳、实体以及接触单元等的建模与分析计算。

首个许可价格
3,540.00 USD
RFEM 玻璃结构
RF-GLASS 5.xx

附加模块

单层、组合和中空玻璃设计

首个许可价格
1,120.00 USD
RFEM 其他附加模块
RF-LAMINATE 5.xx

附加模块

层压板面设计

首个许可价格
1,120.00 USD