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Table of Contents
Supported Materials
Intact.Simulation for Grasshopper supports structural materials that are linear isotropic. Isotropic materials possess the same mechanical properties regardless of orientation. Linear materials have a proportional relationship between stress and strain. Metals, plastics, and ceramics are examples of linear isotropic materials.
Structural Material Blocks
Intact.Simulation for Grasshopper contains 3 types of structural Material Blocks:
Built-in Materials
Intact.Simulation for Grasshopper contains a variety of built-in engineering materials which can be picked from the Material Block.
Right-clicking on the material block will pop up a list from which one of the built-in materials may be selected.
Custom Ductile Material
The custom ductile material block allows use of structural materials for which the von Mises failure criterion applies. Material properties are based on the selected unit system (the default is the MKS unit system).
The inputs to the custom ductile block are:
- Density
- Elastic modulus
- Poisson ratio
- Yield strength
Custom Brittle Material
The custom brittle material block allows use of structural materials for which the Coulomb-Mohr failure criterion applies. Material properties are based on the selected unit system (the default is the MKS unit system).
The inputs to the custom brittle block are:
- Density
- Young's modulus
- Poisson ratio
- Tensile strength
- Compressive strength
Failure Criteria
Intact.Simulation for Grasshopper supports the following failure criteria:
- Von Mises - used for ductile materials.
- Coulomb Mohr - used for brittle materials.
Intact.Simulation computes the Danger Level in the visualization module based on the Yield Strength, Tensile Strength, and Compressive Strength specified in the material database. The Von-Mises stress failure criteria is only applicable to ductile materials - materials that flex, stretch, or compress significantly before failure. The Coulomb-Mohr failure criteria, on the other hand, is only applicable to brittle materials such as glass, ceramics, and concrete - materials that fail without significant deformation. Note, these failure criteria are automatically applied corresponding to the custom material module chosen.
Thermal Material Blocks
Built-in Thermal Materials
Intact.Simulation for Grasshopper contains a variety of built-in engineering materials which can be picked from the Thermal Material Block for thermal simulations.
Right-clicking on the material block will pop up a list from which one of the built-in materials may be selected.
Custom Thermal Materials
Custom thermal material blocks allow creating a custom material for thermal simulations. The inputs to the custom thermal material block are:
- Density
- Specific heat
- Thermal conductivity
- Coefficient of thermal expansion (optional)
