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Joint Overview

HyperX recognizes three different types of Joint entities based on the elements defining the membership:

  1. Edge Joints - Do not contain any connector elements and physically exist on the boundary between Zones.

  2. Point Joints - Contain at least one connector element (spring element, spring + RBE combination, etc.) and are used to represent a fastened or riveted connection.

  3. Non-FEA Joints - Do not originate from finite elements or Zone boundaries and, therefore, have no association with the FEM. They are manually created in HyperX and used with Non-FEA Loads.

Edge Joints

joint_edgejoint-example.png

Edge Joints are used to represent the connections between panels abstracted along panel boundaries, rather than being modeled explicitly. They are common in earlier design stages of fastened connections, shear-dominated fastened joints, and bonded joints.

  • Do not contain any discretely modeled connector or adhesive elements and physically exist on the boundary between Zones.

  • Flexible design options, supporting configurational trades.

  • Convert shell element forces to Joint-level loads.

  • Customizable Sizing routines to control MS resolution. See "Sizing and/or Analyzing" Joints.

Applicable Designs

Any Joint Design can be assigned to an Edge Joint. See Joint Design Properties (in Type > Joint section) for the full list of concepts within each Property.

jointDesigns_Ribbon.png

Loads

Edge Joints require their own logic for loads extraction from the FEM and processing into Design-to Loads. You can find more information on that here.

Average, statistical, element-based, neighbor average, and peak Load Properties are applicable to these Joints. For more information on these methods, see FEA Loads Processing.

Training Examples

Point Joints

joint_pointjoint-example.png

Point Joints contain at least one connector element (spring element, spring + RBE combination, etc.) and represent a fastened or riveted connection.

Applicable Designs

  • Fastened Joints

    DesignProp_joints-fastened.png

  • Riveted Joints

    DesignProp_joints-rivet.png

Loads

Point Joints require their own logic for loads extraction from the FEM and processing into Design-to Loads. You can find more information on that here.

Average, statistical, element-based, and peak Load Properties are applicable to these Joints. For more information on these methods, see FEA Loads Processing.

Training Examples

Non-FEA Joints

nonFEAJoint.png

Non-FEA Joints are Joint entities that do not originate from finite elements or Zone boundaries. They are used when working with Non-FEA Design Loads.

Applicable Designs

Any Joint Design can be assigned to a Non-FEA joint. See Joint Design Properties (in Type > Joint section) for the full list of concepts within each Property.

jointDesigns_Ribbon.png

Loads

Non-FEA Joints do not use Load Properties. A Non-FEA Load is assigned directly to a joint, thereby applying the corresponding loads to the selected joint(s).

See Also

Joint Sizing, Analysis, and Other Features

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