Composites

The challenge: Combining fibers, matrix polymers, and fillers so that their strengths complement each other and their weaknesses are balanced out.

Composite materials are crucial to improve the functionality and lightweight design for current component development. No longer limited to the aerospace industry, they are widely used in civil aviation, transportation, construction, and widespread in engineering.

Steady technical progress and the increasing number of application areas call for competitive and reasonably-priced design of materials with very high stiffness and strength, coupled with a low as possible material density.

Assessing the material behavior of composites (e.g. fracture behaviour) by experimental determination is highly complex due to their inhomogeneity and the interplay of anisotropy and differences in stiffness of the single material components of the composite.

Also difficult is to determine the permeability tensor of the non-infiltrated laminate, that is required to perform an adequate mold-fill simulation and to ensure a complete infiltration of the component, and the permeability changes with each modification of the stacking sequence of the laminate.

You are interested? Our team of Digital Materials experts will be happy to provide you with more information!

Go to contact form

GeoDict Applications

Predict permeability of a textile

Multiscale approach
- Micro-permeability on single fiber level
- Meso-permeability on single roving level
Out: permeability of the textile as input for filling simulation
Influence of compaction of textile can be considered
Permeability can be predicted on µCT-scans on GeoDict models

Analyse fibers in a composite

Analysis based on µCT-scan
Fiber diameters
Fiber orientation
Fiber lengths
Layer wise analysis

Analyse pores and defects
in a composite

Analysis based on µCT-scan
Pores sizes
Pore shapes
Pore identification
Fiber breakage
Delamination

Simulate mechanical behavior of composites

Predict full stiffness tensor
Simulate large deformations, such as tensile experiments
Include material laws for
- Elasticity
- Plasticity
- Visco-plasticity
- Failure
- Damage
Derive materials automatically from tensile tests

Highlights of the GeoDict solution at a glance

Easy generation of realistic, digital models of fiber structures
Identification of individual fibers from a µCT-scan and accurate analysis of the fiber diameter distribution, fiber orientation, and fiber length distribution (for short fibers)
Identification of pores (voids) from a µCT-scan and precise analysis of their size, shape, and distribution
Prediction of the permeability of a reinforcing textile, even in the compacted state
Fast determination of the anisotropic stiffness tensor
Simulation of large deformations including plasticity, damage and failure
Prediction of electrical and thermal conductivity
Export of structures easily generated within GeoDict as a mesh for use in further analysis with other FE solvers

Modeling of glass fiber rovings and prediction of permeability

Please note that after activating the video, data will be transmitted to YouTube.
More Information

Activate once Activate permanently

Digital Development of Composite Materials with GeoDict

Analyze and understand mechanical properties, properties linked to the geometry, and other physical properties of the material (e.g. fabrics, semi-finished products, or polymers) at the microscale. Optimize the properties based on the quantitative and qualitative results of simulations.

With GeoDict, Math2Market offers the complete solution for digital materials research and development.