Hard Metal: Finite Element Simulation for Mechanical Properties on the Microstructural Level
FEA & CFD Based Simulation Design Analysis Virtual prototyping MultiObjective Optimization
Hard metals are functional materials with tuned performances arising from the composite microstructure. Understanding those composites on the microstructural level is key for material suppliers who need to innovate their products. Hard metals are two-phase materials with significantly differing mechanical properties on the microstructural level. Material properties are tuned by varying the content and microstructure of a hard inclusion phase. Key to further material development is to understand and optimize microstructural stresses in the composite.
The complexity of hard metal microstructures makes it extremely difficult to calculate stresses and strains at the microstructural level, especially in three-dimensional analyses. Enteknograte Engineering team use combination of advanced Numerical simulation FEA tools and customize them with Programming and developing user defined constitutive equation with Fortran, Matlab and Python to solve this problem and verify the results.
Key Features of our Simulation:
- Realistic RVE of hard metal microstructures dependent on content, grain size
- Computation of microstructural stresses & strains based on FE technology
- Probabilistic distribution functions and homogenized material properties
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.
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Woven composites are typically draped onto more or less complex surfaces to produce structural parts. The overall objective is to use light-weight materials with the best stiffness and strength properties possible. The draping process can have significant impact on local warp and weft angles which leads to a local variation of effective material properties. Understanding the connection between the warp / weft microstructure, the resulting material properties and finally their influence on the part performance is crucial knowledge in the design process of woven composite structure.
Read more... Finite Element Simulation of Braided Composites
With braided composites, the reinforcement does not need to be cut to shape from a roll and laid down onto the mold. It is directly braided around a mandrel which has the shape of the part to be made. This speeds up the manufacturing process but requires a dedicated equipment. This process further makes it possible to produce more complex parts which, however, are limited to convex shapes and hollow profiles.
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Unidirectional composites (UD) offer a large playground to tune optimal material properties. Thermoset and thermoplastic matrices are reinforced with different types of fibers: glass, carbon, aramid, etc. UD fibers are straight and non-crimped. In the laminate, they are laid up in specific stacking sequences, varying the fiber volume fraction, the thickness and orientation of plies.
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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.
Read more... Hard Metal: Finite Element Simulation for Mechanical Properties on the Microstructural Level
Hard metals are functional materials with tuned performances arising from the composite microstructure. Understanding those composites on the microstructural level is key for material suppliers who need to innovate their products. Hard metals are two-phase materials with significantly differing mechanical properties on the microstructural level. Material properties are tuned by varying the content and microstructure of a hard inclusion phase. Key to further material development is to understand and optimize microstructural stresses in the composite.
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