Karamba3D v1.3.3
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English 英文
  • Welcome to Karamba3D
  • 1: Introduction
    • 1.1: Installation
    • 1.2: Licenses
      • 1.2.1: Cloud Licenses
      • 1.2.2: Network Licenses
        • 1.2.2.1: Network license (archived)
      • 1.2.3: Temporary Licenses
      • 1.2.4: Standalone Licenses
  • 2: Getting Started
    • 2: Getting Started
      • 2.1: Karamba3D Entities
      • 2.2: Setting up a Structural Analysis
        • 2.2.1: Define the Model Elements
        • 2.2.2: View the Model
        • 2.2.3: Add Supports
        • 2.2.4: Define Loads
        • 2.2.5: Choose an Algorithm
        • 2.2.6: Provide Cross Sections
        • 2.2.7: Specify Materials
        • 2.2.8: Retrieve Results
      • 2.3: Physical Units
      • 2.4: Quick Component Reference
  • 3: In Depth Component Reference
    • 3.1: Model
      • 3.1.1: Assemble Model
      • 3.1.2: Disassemble Model
      • 3.1.3: Modify Model
      • 3.1.4: Connected Parts
      • 3.1.5: Activate Element
      • 3.1.6: Line to Beam
      • 3.1.7: Connectivity to Beam
      • 3.1.8: Index to Beam
      • 3.1.9: Mesh to Shell
      • 3.1.10: Modify Element
      • 3.1.11: Point-Mass
      • 3.1.12: Disassemble Element
      • 3.1.13: Make Beam-Set 🔷
      • 3.1.14: Orientate Element
      • 3.1.15: Select Element
      • 3.1.16: Support
    • 3.2: Load
      • 3.2.1: Loads
      • 3.2.2: Disassemble Mesh Load
      • 3.2.3: Prescribed displacements
    • 3.3: Cross Section
      • 3.3.1: Beam Cross Sections
      • 3.3.2: Shell Cross Sections
      • 3.3.3: Spring Cross Sections
      • 3.3.4: Disassemble Cross Section 🔷
      • 3.3.5: Beam-Joint Agent 🔷
      • 3.3.6: Beam-Joints 🔷
      • 3.3.7: Eccentricity on Beam and Cross Section 🔷
      • 3.3.8: Modify Cross Section 🔷
      • 3.3.9: Cross Section Range Selector
      • 3.3.10: Cross Section Selector
      • 3.3.11: Cross Section Matcher
      • 3.3.12: Generate Cross Section Table
      • 3.3.13: Read Cross Section Table from File
    • 3.4: Material
      • 3.4.1: Material Properties
      • 3.4.2: Material Selection
      • 3.4.3: Read Material Table from File
      • 3.4.4: Disassemble Material 🔷
    • 3.5: Algorithms
      • 3.5.1: Analyze
      • 3.5.2: AnalyzeThII 🔷
      • 3.5.3: Analyze Nonlinear WIP
      • 3.5.4: Large Deformation Analysis
      • 3.5.5: Buckling Modes 🔷
      • 3.5.6: Eigen Modes
      • 3.5.7: Natural Vibrations
      • 3.5.8: Optimize Cross Section 🔷
      • 3.5.9: BESO for Beams
      • 3.5.10: BESO for Shells
      • 3.5.11: Optimize Reinforcement 🔷
      • 3.5.12: Tension/Compression Eliminator 🔷
    • 3.6: Results
      • 3.6.1: ModelView
      • 3.6.2: Deformation-Energy
      • 3.6.3: Nodal Displacements
      • 3.6.4: Principal Strains Approximation
      • 3.6.5: Reaction Forces 🔷
      • 3.6.6: Utilization of Elements 🔷
      • 3.6.7: BeamView
      • 3.6.8: Beam Displacements 🔷
      • 3.6.9: Beam Forces
      • 3.6.10: Resultant Section Forces
      • 3.6.11: ShellView
      • 3.6.12: Line Results on Shells
      • 3.6.13: Result Vectors on Shells
      • 3.6.14: Shell Forces
    • 3.7: Export 🔷
      • 3.7.1: Export Model to DStV 🔷
    • 3.8 Utilities
      • 3.8.1: Mesh Breps
      • 3.8.2: Closest Points
      • 3.8.3: Closest Points Multi-dimensional
      • 3.8.4: Cull Curves
      • 3.8.5: Detect Collisions
      • 3.8.6: Get Cells from Lines
      • 3.8.7: Line-Line Intersection
      • 3.8.8: Principal States Transformation 🔷
      • 3.8.9: Remove Duplicate Lines
      • 3.8.10: Remove Duplicate Points
      • 3.8.11: Simplify Model
      • 3.8.12: Element Felting 🔷
      • 3.8.13: Mapper 🔷
      • 3.8.14: Interpolate Shape 🔷
      • 3.8.15: Connecting Beams with Stitches 🔷
      • 3.8.16: User Iso-Lines and Stream-Lines
  • Troubleshooting
    • 4.1: Miscellaneous Questions and Problems
      • 4.1.1: Installation Issues
      • 4.1.2: Purchases
      • 4.1.3: Licensing
      • 4.1.4: Runtime Errors
      • 4.1.5: Definitions and Components
      • 4.1.6: Default Program Settings
    • 4.2: Support
  • Appendix
    • A.1: Release Notes
      • Work in Progress Versions
      • Version 1.3.3
      • Version 1.3.2 build 190919
      • Version 1.3.2 build 190731
      • Version 1.3.2 build 190709
      • Version 1.3.2
    • A.2: Background information
      • A.2.1: Basic Properties of Materials
      • A.2.2: Additional Information on Loads
      • A.2.3: Tips for Designing Statically Feasible Structures
      • A.2.4: Hints on Reducing Computation Time
      • A.2.5: Natural Vibrations, Eigen Modes and Buckling
      • A.2.6: Approach Used for Cross Section Optimization
    • A.3: Bibliography
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  • The “Render Settings”-submenu
  • Display of cross section forces and moments

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  1. 3: In Depth Component Reference
  2. 3.6: Results

3.6.7: BeamView

Previous3.6.6: Utilization of Elements 🔷Next3.6.8: Beam Displacements 🔷

Last updated 4 years ago

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The “BeamView” component controls the display options related to beams and trusses (see fig. 3.6.7.1). This concerns the rendering of cross section forces, resultant displacements, utilization of material and axial stress.

The “Render Settings”-submenu

When activated, “Cross section”, “Displacement”, “Utilization” and “Axial Stress” result in a rendered view of the model. Utilization is calculated as the ratio between the normal stress at a point and the strength of the corresponding material. Shear and buckling are not considered.

The mesh of the rendered image is available at the “Mesh”-output of the “BeamView”-component. Two sliders control the mesh-size of the rendered beams: First “Length/Segment” of “ModelView” determines the size of sections along the middle axis of the beams. Second “Faces/Cross section” of “BeamView” controls the number of faces per cross-section. For rendering circular hollow cross sections the number of “Faces/Cross section” is multiplied by six in order to get a smooth visual result.

Display of cross section forces and moments

The color range of the results starts at the minimum value and stretches to the maximum. You can define individual color ranges for all result quantities in the -file. A “Legend”-component lets you inspect the meaning of the colors.

It is instructive to see which parts of a beam are under tension or compression. Activate the “Axial Stress”-checkbox in menu “Render Settings” in order to display the stresses in longitudinal beam direction. Red (like brick) means compression, blue (like steel) tension. In some models there may exist small regions with high stresses with the rest of the structure having comparatively low stress levels. This results in a stress rendering that is predominantly white and not very informative. With the sliders for “Upper Result Threshold” and “Lower Result Threshold” of the “ModelView” you can set the range of the color-scale (see section ). Result values beyond the upper limit appear yellow, below the lower threshold green (see fig. 3.6.7.2).

The “Section Forces” submenu lets you plot section forces and moments as curves, meshes and with or without values attached. All generated curves and meshes get appended to the “BeamView”-component's “Curves” and “Mesh” output. The graphical representation is oriented according to the local coordinate axes of the beam and takes the deflected geometry as its base. The subscript of bending moments indicates the local axis about which they rotate, for shear forces it is the direction in which they act (see also fig. 3.6.7.3). Customize the mesh-colors via . The slider “Length/Subdivision” in sub-menu “Render Settings” of the “ModelView”-component controls the number of interpolation points.

“karamba.ini”
“karamba.ini”
3.6.1
Fig. 3.6.7.1: Display of utilization and bending moments of cantilever beam
Fig. 3.6.7.1: Left: “Cross section”-option enabled. Right: “Axial Stress” enabled.
Fig. 3.6.7.2: Mesh of beams under dead weight with upper and lower results threshold set to 53% and 50%
Fig. 3.6.7.3: Moment My(orange) about the local beam Y-Axis and shear force Vz (blue) in local Z-direction