ElastoDict
The ElastoDict module helps in the development of new materials by providing better understanding of their properties. The key to optimizing your materials are accurate simulations on the 3D micro-structure. Common application areas for ElastoDict are composite materials, ceramics, metals or foams, e.g., but also rock samples.
ElastoDict contains the following sub-modules:
Deformations
ElastoDict-Deformations allows to simulate different types of deformation under user-defined loads. For example, a standard tensile experiment in an arbitrary direction of the 3D micro-structure can be set up. The models of the constituent materials might contain damage, failure, plastic deformation, viscous effects, and many more. For linear elastic materials, new material contacts in the structure can be detected during the simulation. Several nonlinear material models are implemented in the FeelMath solver, and additionally, UMATs compatible with Abaqus are supported. Results of the simulation are, e.g., a stress-strain curve and local information on the regions where damage sets in and the material ends up failing.
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Flexural Test
With the Flexural Test option in ElastoDict, a 3-point bending test is simulated for a complex micro-structure. The result includes detailed strain and stress information, as well as the flexural modulus.
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Effective Stiffness
ElastoDict-Effective Stiffness computes the linear elastic properties of complex micro-structures by solving the corresponding partial differential equation on the 3D image or model. For Effective Stiffness, two solvers are available: FeelMath and LIR. The results include the local stresses and strains, the complete stiffness tensor, and the information on the orthotropic, transversal isotropic or isotropic character of the material, indicative of directionally dependent properties. Additionally, many post-processing steps can be carried out on the ElastoDict-Effective Stiffness results.
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Effective Stiffness (AF)
ElastoDict-Effective Stiffness (AF) computes analytic approximations and bounds for the linear elastic properties of complex micro-structures. The computation is very fast, as no partial differential equation is solved, and gives a first approximation of the material behavior.
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Mechanics GeoApps
This section contains GeoApps which use the functionality of ElastoDict. Currently, two GeoApps are available:
- the Stiffness Estimation GeoApp helps to estimate the stiffness of an unknown material within a complex micro-structure.
- the Contact Detachment GeoApp is used to simulate object separation and detachment.
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Topics of this section
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- Workflow
In this chapter basic steps and functionalities of ElastoDict are described.
- Nonlinear Material Models in ElastoDict
In this chapter setting up nonlinear and custom material laws for ElastoDict simulations is discussed.
- Deformations
The Deformations module allows to simulate different types of deformation under user-defined loads.
- Flexural Test
With the Flexural Test option in ElastoDict, a 3-point bending test is simulated for a complex micro-structure.
- Effective Stiffness
The module Effective Stiffness computes the linear elastic properties of complex micro-structures by solving the corresponding partial differential equation on the 3D image or model.
- Effective Stiffness (AF)
The module Effective Stiffness (AF) computes analytic approximations and bounds for the linear elastic properties of complex micro-structures.
- Mechanics GeoApps
This section contains GeoApps which use the functionality of ElastoDict
- References
Publications cited in this chapter.
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