Multi-scale modeling and simulation of technical textiles and nonwoven under special consideration of the contact between yarns or fibers is in the focus of this research and development activity.

Technical Textiles and Nonwoven

Modelling, simulation and optimization of the material behaviour of technical textiles and nonwovens are our core competences in this area. Our know-how consists in modelling and simulation of all possible technical textiles, i.e. warp and weft knitted, spacer fabrics, woven and nonwovens (e.g. made of stapled fibers, filaments, plastic (PET, PP, PA) or natural fibres (cotton, leather)).

We simulate their nonlinear thermomechanical properties: tension, bending, compression, visco-elastic, creep behavior and fatigue using homogenization and dimension reduction methods, reducing the problem complexity. In addition, we use simulations to evaluate the air permeability, acoustic absorption, moisture behavior or absorbency of textiles and nonwovens for any compression or deformation state.

Our Expertise Makes it Possible:

  • the accelerated development, virtual design and optimization of technical textiles and nonwovens
  • the qualified evaluation of the structure-property relationship and material properties of textiles
  • the automated textile machine control for the production of customized textiles

Example Projects on Technical Textiles

 

Draping Process for FRP Components Made From High Performance Textiles

AIF-Project »OptiDrape«

 

Simulation of Mechanical Textile Properties

Multiscale modeling and simulation of textiles and fibers with heterogeneous microstructure is the topic of this research area.  

 

 

Simulation of Leather Properties with FISFT

The reaserch aim of the project is the creation of a 3D-FEM structure model for leather.

 

Properties of Warp Knitted Spacer Fabrics

We work on the DFG project »Modelling of the Structure and the Properties of 3D Warp Knitted Spacer Fabrics and Experimental Evaluation«.

 

RIM Processes of Polyurethane Foams

In the project FoamInTextil we simulate the foam filling process of Polyurethane foams.

Example Projects on Nonwoven

 

Optimization of Cellulosic Materials

It was the aim of this project to determine numerically the effective transport properties of a cellulosic layer.

 

Micromechanical Simulation of the Resilience of Nonwovens

In the project, micromechanical simulation models are used for the time-dependent behavior of nonwovens.

 

Optimization of Nano Meltblown Fibers

Our efforts are focused on developing a significantly more efficient meltblown production process than current state of the art technologies.

 

Analysis and Optimization of Paper Machine Clothings

The behaviour of press felts is analyzed and simulated at the Fraunhofer ITWM.