Tagged: ls-dyna, LS-DYNA Suite, lsdyna, R13.x, structural-mechanics
March 17, 2023 at 8:59 amFAQParticipant
To define a cross section and output the cross-sectional resultant forces in the updated cross-sectional coordinate system, two alternative approaches can be followed. 1) Define the cross section in the input file using the keyword *DATABASE_CROSS_SECTION_PLANE. Select ITYPE=2 and use ID to reference the sectionâ€™s coordinate system. The coordinate system should be defined using *DEFINE_COORDINATE_NODES with FLAG=1 so that the local coordinate system is updated at every time step based on the position of three nodes. The resultant cross-sectional forces are calculated by LS-DYNA in the updated local coordinate system and are written in the output file secforc which can be loaded in LS-PrePost. 2) Define a cross section in LS-PrePost after loading d3plot. This can be done by selecting FEM > Model and Part > Section Plane. In the Section Plane window, select â€œ3Ndsâ€ for defining the cross-sectional plane using three nodes. Also, select â€œFixMâ€ for the cross section to be fixed to the model and be updated based on the position of the three nodes. Then press â€œCutâ€ and then â€œForceâ€. Next, check the option â€œPlane coordinate systemâ€, select the section force component to be plotted, and press â€œPlotâ€. This will plot the section forces with respect to the updated local coordinate system. With this approach the calculation of the element forces is done by LS-PrePost, independently of LS-DYNA, using the element stress data written in d3plot.
Introducing Ansys Electronics Desktop on Ansys Cloud
The Watch & Learn video article provides an overview of cloud computing from Electronics Desktop and details the product licenses and subscriptions to ANSYS Cloud Service that are...
How to Create a Reflector for a Center High-Mounted Stop Lamp (CHMSL)
This video article demonstrates how to create a reflector for a center high-mounted stop lamp. Optical Part design in Ansys SPEOS enables the design and validation of multiple...
Introducing the GEKO Turbulence Model in Ansys Fluent
The GEKO (GEneralized K-Omega) turbulence model offers a flexible, robust, general-purpose approach to RANS turbulence modeling. Introducing 2 videos: Part 1 provides background information on the model and a...
Postprocessing on Ansys EnSight
This video demonstrates exporting data from Fluent in EnSight Case Gold format, and it reviews the basic postprocessing capabilities of EnSight.
- The warning message is: “The maximum contact stiffness is too big. This may affect the accuracy of the results.” Why does large contact stiffness affect results accuracy?
- After Workbench crashes, how can I recover the project from a .mechdb file?
- Contact Definitions in ANSYS Workbench Mechanical
- Model has a large number of contacts – how to reduce them?
- How to resolve “Error: Invalid Geometry”?
- How to display the color of each body based on the material in Mechanical?
- How to locate an element of a particular ID number in Mechanical?
- Please explain the warning message “coefficient ratio exceeds 10e8” ?
- How to Connect Excel to Workbench
- How can I plot bodies colored by material property in Workbench?
© 2023 Copyright ANSYS, Inc. All rights reserved.