Discontinuous Fiber Composites: Finite Element Simulation
FEA & CFD Based Simulation Design Analysis Virtual prototyping MultiObjective Optimization
Discontinuous fiber composites (DFC) are produced by compression molding of prepreg chips which are made of a combination of unidirectional fiber and a Thermoset or ThermoPlastic matrix. In some cases, matrix is made of thermoset which consolidate through a chemical/cure reaction at elevated temperature. However, when the curing cycle is not well monitored it can be observed some cracks that appear between the chips due to apparition of thermal stresses normal to two chips. The increased interest in this material is mainly due to its adaptability to complex geometries for which conventional composite materials are not suitable. Furthermore, it offers high production throughput by comparison to more conventional composites.
Due to their complex microstructure, these materials request the definition of new dedicated methods in order to capture accurately the local orientation and to compute the local homogenized properties in order to simulate correctly the curing and the design process.
Enteknograte Engineers evaluate the material response by means of full field homogenization based on the finite element method. The proposed solution makes it possible to evaluate the variability of the mechanical behavior of the microstructure and influence of microstructural properties on its macroscopic behavior.
What Enteknograte do with FEA Based Simulation Design in Composite Material Engineering:
- Multi-scale analyses to predict the nonlinear microstructure behavior of plastic & composite materials & structures
- Speeds up the development process for composite materials and structures
- Perform detailed analyses of materials on the microstructure level
- Derive microstructure material models suited for multi-scale coupling of the micro- and macroscopic level
- Bridges the gap between manufacturing and performance
- Understand Thermal, Thermo-Mechanical and Electrical behaviour of New Material
- Crash Performance simulation
- Fatigue and Creep assessment of Composite and New Material
- Acoustic and Vibration analysis before Manufacturing
- Stiffness and Strength properties
- Process simulation: Injection and compression molding, drape molding, RTM, etc.
- Industries: Aerospace, Automotive, Consumer Electronics, Material Suppliers, etc.
CAE softwares: MSC software (Digimat, Marc, Nastran), Abaqus, Altair, ANSYS, Autodesk Moldflow, LS-Dyna, PAM-CRASH, RADIOSS and SAMCEF.