In addition to our technical support (e.g. via chat), you’ll find resources on our website that may help you with your design using Dlubal Software.
Frequently Asked Questions (FAQ)
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AnswerThe stiffness of the bolt does not depend on the strength class and is 210000 N / mm² for most steels. It is therefore possible to select an S235 as the material of the bolt to consider the stiffness of the bolt.
AnswerThe Young's modulus in the state II is not directly output in the deflect calculation.But you can switch to the result window "3.3 Point-by-Scavity Serviceability Design" and filter an FE mesh or grid point for which you want to see the design details. See Figure 01.In the table, select the result row for the "u z, local " deformation.Then, click the [i] button to display the design details for the selected point.In the design details, you can find the intermediate values for the deformation analysis, such as the moment of inertia of the cross-section in state I and state II, the distribution coefficient zeta, and the final cross-section values. See Figure 02.Since these intermediate values are always determined when you open the design details table and are always displayed and temporarily saved for that point, the intermediate values can not be displayed graphically for the designed surface.
This Poisson's ratio is irrelevant for the member calculation because it is only used for surfaces and solids.
Poisson's ratio for an isotropic material model is fixedly coupled with the modulus of elasticity and the shear modulus. If the Poisson ratio becomes too large and leaves the limits, the result is no more isotropic material behavior. To avoid the problem, it is recommended to create an orthotropic material for surfaces and solids. For members, an isotropic material model must still be selected. In this case, the message can be ignored.
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