Pretensioner
Pretensioner entities define pretensioners.
LS-DYNA Cards
Card | Description |
---|---|
*ELEMENT_SEATBELT_PRETENSIONER | Defines pretensioners. |
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Solver interfaces supported in HyperMesh.
A solver interface is made up of a template and a FE-input reader.
Collectors are named organizational containers for collected entities. Collected entities are nameless entities which must reside within one, and only one, collector. Collected entities are mutually exclusive to a collector.
Entities which are given a name but are not collected or organized into containers.
Accelerometer entities measure acceleration in the simulation.
Ale Fsi Projection entities provide a coupling method for simulating the interaction between a Lagrangian material set (structure) and ALE material set (fluid).
Ale Reference System Curve entities defines a motion and/or a deformation prescribed for a geometric entity, where a geometric entity may be any part, part set, node set, or segment set.
Ale Reference System Group entities used to associate a geometric entity to a reference system type.
Ale Reference System Node entities defines a group of nodes that control the motion of an ALE mesh.
Ale Reference System Switch entities allows for the time-dependent switches between different types of reference systems, that is, switching to multiple PRTYPEs at different times during the simulation.
Ale Smoothing entities constraint keeps an ALE secondary node at its initial parametric location along a line between two other ALE nodes.
Ale Tank Test keyword provides curve through an engineering approximation when control volume airbags only require two engineering curves to define gas inflator and those two curves can be experimentally measured but the ALE inflator needs one additional state variable - the inlet gas velocity which is impractical to obtain.
Analysis entities stores settings and entities for composite stress toolbox calculations.
Attachments facilitate the ease of joining subsystems.
Block entities are enclosed volumes represented by a "box" or block.
Body entities define a kinematic assembly made of FE parts or nodes.
Box entities are enclosed volumes, which are represented by a box.
Chart entities plot X and Y data in the form of raw values. They also plot tables created in HyperMesh with the Matrix Browser or results data loaded for post-processing.
Comments provide a convenient way to add lines of text in the solver deck, which are considered as commented lines by the solver.
Constrained extra node entities define and store the keywords *CONSTRAINED_EXTRA_NODES_NODE and *CONSTRAINED_EXTRA _NODES_SET.
Constrained rigid bodies entities define and store the keyword *CONSTRAINED_RIGID_BODIES.
Constraints define kinematic constraints on a node's degrees of freedom.
This entity defines additional material features coupled to the referenced material, like: Failure, Permeability, Porosity, Thermal, Fatigue, Cohesive, Inelasticity, and so on.
Mechanism Constraint entities define kinematical constraints on a body at a specified node or point location.
Contact surface entities define and store contact definitions typically used in contact analysis.
Control volume entities define and store control volumes typically used in safety analysis.
Cross section entities store cross section definitions used in a crash analysis.
Curve entities define and store xy data and are associated with a plot entity.
In LS-DYNA, damping entities define damping applied on the parts and nodes in case of *DAMPING_GLOBAL. In Radioss, damping entities used to set Rayleigh mass and stiffness damping coefficients are applied to a set of nodes used to stabilize the results.
Dummy entities are defined by bodies representing the different kinematic assemblies of the dummy.
Element behaviors define additional elemental features coupled to the referenced elements, such as Failure, Deletion, and so on.
Element clusters are used to describe an assembly of elements for post-processing and failure control.
Failures describe material failure criteria to be coupled to material models.
Feature entities track and manage certain geometric features.
Fields are an incredibly versatile functionality that enable the creation of model entities based on spatially varying input data.
The Frequency entity supports the solver keywords to set up NVH, Durability, or Acoustic analysis.
Frictions entities define friction coefficients between parts.
Group entities define and store interfaces and rigid walls typically used in contact analysis.
Hourglass entities define hourglass and bulk viscosity properties which are referenced via HGID in the *PART command.
This entity is used to define the physical stress and strain initial state in elements like beams, shells, solids, and thick-shells. This entity is supported in the LS-DYNA profile.
Integration Rule entities specify user-defined integration points for beam and shell elements.
Interface Component entities create an interface in interface file for use in subsequent linking calculations.
Interface Linking Discrete keyword link node(s) to an interface in an existing interface file.
Joint entities define a connection between two rigid bodies. Joint elements reference property and orientation information.
Laminate entities define the list of stacked plies which make up a laminated structure.
Load step entities define and store load cases for a given analysis.
Load step inputs organize and manage the IDs of analysis parameter bulk cards.
Material entities define and store material definitions for a model.
Mechanism entities are the root of the hierarchy in the Mechanism Browser.
Mesh Groups, also called Assemblies, are specific to the EXODUS profile.
Output block entities define and store solver output requests.
Parameter entities parameterize FE entity and geometric entity attributes.
Perturbation entities provide a means of defining deviations from the designed structure, such as buckling imperfections. Define the stochastic variation in the material models with the STOCHASTIC keyword option.
Ply entities define composite lamina.
Plot entities associate and organize curve entities within a xy plot window.
Position entities allow you to apply a Transformation sequence on set of nodes or SolverSubmodels.
Pretensioner entities define pretensioners.
RBE3's are interpolation constraint elements, where the motion of a dependent node is defined as the weighted average of the motions of a group of independent nodes.
Property entities define and store 1D, 2D, and 3D property definitions for a model.
Reference Geometries define the reference shape of foam or airbag components.
Region entities store information used to facilitate and automate modeling practices and processes. It enables a selection which can be common across design changes or other models, provided region data is the same.
Retractor entities define retractors.
Rigid elements are created in a space between two nodes of a model where a rigid connection is desired.
Rigid bodies entities define and store the keywords *RBODY and *RBADD.
Rigid wall entities provide a method for treating a contact between a rigid surface and nodal points of a deformable body. In the LS-DYNA and Radioss user profiles, rigid walls can be created in the Model and Solver browsers.
Section entities define and store a model's 1D and 2D properties.
Sensor entities define and store sensors typically used in safety analysis.
Set entities define and store lists of entity IDs for entities, sets of sets, or lists of set IDs.
Slip ring entities define sliprings.
Solver masses are used to model lumped mass finite element mesh.
State Equations are used to describe the thermodynamic equation relating material state variables under a given set of physical conditions, such as pressure, volume, temperature, or internal energy. State Equations are useful in describing the properties of fluids, mixtures of fluids, and so on.
Table entities collect data points.
Tag entities tag a piece of information, called the body, onto a node, element, line, surface, point, or solid within the model. They can be used to reference an entity across multiple versions of the same model.
Termination entities provides an alternative way to stop the calculation before the termination time is reached.
Title entities attach a title box with text to the modeling window, or to a node, element, load, or system.
Transformation entities define solver transformations, and are used to define a transformation sequence in a Position entity, to be applied on a set of nodes or on a SolverSubmodel.
Entities used for morphing the shape of FE model.
Entities used to set up optimization problems.
Control card entities create solver control cards such as results file I/O options, CPU and memory limits, and others.
Undefined entities are entities that will not be written to the solver deck.
The encryption of solver entities is used to translate entity data into an undisclosed language.
Element property and material assignment rules are based on the current user profile (solver interface).
Supported cards organized by solver.
Browsers provide a structured view of model data, which you can use to review, modify, create, and manage the contents of a model. In addition to visualization, browsers offer features like search, filtering, and sorting, which enhance your ability to navigate and interact with the model data.
Create and edit 2D parametric sketch geometry.
Create, edit, and cleanup geometry.
FE geometry is topology on top of mesh, meaning CAD and mesh exist as a single entity. The purpose of FE geometry is to add vertices, edges, surfaces, and solids on FE models which have no CAD geometry.
Explore the different types of mesh you can create in HyperMesh and create and edit 0D, 1D, 2D, and 3D elements.
Create, organize and manage parts and subsystems.
HyperMesh composites modeling.
Create connections between parts of your model.
Rapidly change the shape of the FE mesh without severely sacrificing the mesh quality.
Create a reduced ordered model to facilitate optimization at the concept phase.
Workflow to support topology optimization model build and setup.
Setup an Optimization in HyperMesh.
Multi-disciplinary design exploration and optimization tools.
Validate the model built before running solver analysis.
Models require loads and boundary conditions in order to represent the various physics and/or physical equivalents to bench and in-use testing.
Reduce a full 3D model with axisymmetric surfaces while accounting for imperfections.
Tools and workflows that are dedicated to rapidly creating new parts for specific use cases, or amending existing parts. The current capabilities are focused on stiffening parts.
Tools used for crash and safety analysis.
Use airbag folder utilities and export a resulting airbag in a Radioss deck.
Essential utility tools developed using HyperMesh-Tcl.
Import an aeroelastic finite element model with Nastran Bulk Data format.
Framework to plug certification methods to assess margin of safety from the model and result information.
Create and evaluate evaluation lines and optimize interfaces to eliminate squeak and rattle issues.
Use PhysicsAI to build fast predictive models from CAE data. PhysicsAI can be trained on data with any physics or remeshing and without design variables.
Results data can be post-processed using both HyperMesh and HyperView.
HyperGraph is a data analysis and plotting tool with interfaces to many file formats.
MotionView is a general pre-processor for Multibody Dynamics.
MediaView plays video files, displays static images, tracks objects, and measures distances.
Use TableView to create an Excel-like spreadsheet.
TextView math scripts reference vector data from HyperGraph windows to automate data processing and data summary.
Create, define, and export reports.
Explore, organize and manage your personal data, collaborate in teams, and connect to other data sources, such as corporate PLM systems to access CAD data or publish simulation data.
A solver interface is made up of a template and a FE-input reader.
Entities which are given a name but are not collected or organized into containers.
Pretensioner entities define pretensioners.
Pretensioner entities define pretensioners.
Card | Description |
---|---|
*ELEMENT_SEATBELT_PRETENSIONER | Defines pretensioners. |
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