Autodesk inventor 2018 nastran free

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Some elements have the capability of more nodes per element increasing the order of interpolation. The default configuration for solid elements is parabolic, but has a linear order option. The default configuration for shell elements is linear, but has a parabolic option.

The default for line elements is linear and does not have an alternate configuration. To calculate elemental quantities, the solver integrates over the volume of the element using specified points called Gauss points, and hence Gaussian quadrature is used to carry out this integration.

Nastran In-CAD Inventor Nastran Forum. Share your knowledge, ask questions, and explore popular Inventor Nastran topics. Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for. Search instead for. Did you mean:. This page has been translated for your convenience with an automatic translation service. Where to begin? Quick start tutorials take you through the basic simulation process from CAD model to finite element results evaluation while providing more guidance than the main set of Nastran In-CAD tutorials.

Quick Start Tutorials: Introduction. Please consult this introductory page for a brief overview. The Manual option within the Surface Contact dialog allows you to choose the Master and Slave entities and to define all basic and advanced contact options. When you select the Manual option, the following settings are available:. You must select a minimum of two faces one Master Entity and one Slave entity in order to properly define surface contact and for contact elements to be created.

You can also select multiple Master and Slave faces. The flip buttons vertical arrows are provided in order to easily move or swap faces between the Slave and Master Entities list boxes. In the list under Surface Contacts , entries that were initially highlighted are already active in the current analysis.

Entries that are not initially highlighted exist only in the Model branch of the tree. Click to toggle the selection state of the contact entries. When you click OK , the highlighted contact pairs will be added to the current analysis, and the non-highlighted entries will be removed from the Analysis if they were in it. This tool will not delete contact pairs from the Model branch of the tree.

In the following image, the two manual surface contact pairs that were selected in the preceding dialog have been added to the Analysis. Refer to Autodesk Nastran Reference Manual for more information. When you select the Manual option, the following settings are available: Type: There are two methods to define surface contacts: Surface to Surface: Edge to Surface: You must select a minimum of two faces one Master Entity and one Slave entity in order to properly define surface contact and for contact elements to be created.

Master Entity: This field allows you to select the master surface. The selection is initially set to be active in the Master Entity field. To reactivate the master selection mode after you’ve made slave selection active click in the Master Entity box. Only surface selections are allowed.