Datapoint Newsletter: Fall '10, Volume 16.4
Composite Testing on the Rise. Matereality 4.0 Release.
Read full postMaterials in simulation
Know your materials
Practical knowledge for simulation professionals who need to understand how material behavior is tested, modeled, and represented in FEA.
Datapoint Newsletter: Summer '10, Volume 16.3
DatapointLabs Joins TechNet Alliance. ANSYS Chaboche Model. CAE-INPUT Decks Now Available for ANSYS Polyflow. Foam Modeling in ANSYS.
Read full postMechanical and Visco-Elastic Properties of UHMWPE for In-Vivo Applications
Ultra-high molecular weight polyethylene (UHMWPE) is used extensively in orthopedic applications within the human body. Components made from these materials are subject to complex loading over extended periods of time. Modeling of components used in such applications depends heavily on having material data under in-vivo conditions. We present mechanical and visco-elastic properties measured in saline at 37C. Comparisons to conventionally measured properties at room temperature are made.
Read full postUnderstanding and Coping with Material Modeling Limitations in FEA
The limitations of modeling materials for simulation are discussed, including lack of clarity in material model requirements, gaps between the material data and the model to which it will be fitted, issues in obtaining pertinent properties, difficulties in parameter conversion (fitting), and preparation of input files for the software being used. Means to address these limitations are presented, including understanding the model completely, measuring the correct data with precision on the right material, selecting the best model for the data and ensuring the best fit of the model to the data, validating the model against a simple experiment, and following best practices to create an error-free input file.
Read full postDatapoint Newsletter: Spring '10, Volume 16.2
Global Expansion Update. LS-DYNA Support Update. New TestPaks Partner. Photo Documentation of Testing.
Read full postMaterial Testing and Calibration for Non-Linear ANSYS Simulations
Material modeling has become increasing important as ANSYS software has added analysis capabilities such as non-linear CAE, crash, CFD, and manufacturing process simulation. Poor material representaion brings risk to CAE and product development. Material data needs for various material models are discussed.
Read full postBehavior-based Material Model Selection and Calibration of Plastics for Crash Simulation
Many material models are available for crash simulation. However, common models are not designed for plastics. We present best practices developed for adapting common models to plastics, as well as best testing protocols to generate clean, accurate rate-dependent data. In addition, we present a streamlined process to convert raw data to LS-DYNA material cards, and harmonized material datasets that allow the same raw data to be used for other crash and rate-dependent analysis software.
Read full postThe Need for Simulation-Quality Material Data
Material testing for simulation is about understanding how to best describe a material’s behavior as input for the CAE code. Such testing requires expertise and experience beyond testing performed in a typical test laboratory; while the test instruments may be the same, the knowledge of CAE and experience with diverse materials is increasingly important. FEA software such as ANSYS is being increasingly used for non-linear simulations. We discuss how DatapointLabs' uncommon material expertise helps you avoid problems when the data is being generated these applications.
Read full postDatapoint Newsletter: Winter '10, Volume 16.1
European Expansion. New TestPaks Alliance Partner. Environmental Conditioning Lab.
Read full postDatapoint Newsletter: Fall '09, Volume 15.2
Expanded Support for Injection Molding CAE. Direct Data Downloads to Autodesk-Moldflow and Moldex3D. Ansys Polyflow now In-House. Elongational Viscosity Data Using Peldom. NEW Injection Molding Partners.
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