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Knowmats is an informal repository of information related to materials and simulation. The information helps simulation professionals perform best-in-class simulation with a better understanding of how materials are represented in FEA and simulation. read more...


Datapoint Newsletter: Summer '19, Vol. 25.3

New DatapointLabs Website; High Temperature Crash Properties

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Density Rheology Thermal Mechanical Plastics Automotive High Speed Testing Injection Molding Structural Analysis LS-DYNA ANSYS DIGIMAT Composites Newsletters Validation


Verification & Validation of LSDYNA Simulations

Interactive, online training course offered by www.lsdyna-online.com.

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Structural Analysis LS-DYNA Validation


Datapoint Newsletter: Spring '19, Vol. 25.2

Full metals testing capability added to DatapointLabs test catalog

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Mechanical Metals Automotive Structural Analysis Moldflow LS-DYNA DIGIMAT Composites Newsletters Validation Altair HyperWorks


Improving Simulation Quality with Reliable Materials Methods

Keynote address delivered at NAFEMS seminar on "Material Properties in Structural Calculation: Modeling, Calibration, Simulation & Optimization."

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Structural Analysis Presentations Validation Materials Information Management


Materials Data Workflow for Simulation of Composites in Transportation Applications

Multi-scale material models are being increasing applied for high level simulation of complex materials such as UD layups, fabric laminate composites, fiber-filled plastics. These models require data inputs from a variety of material tests which are then assembled into models used in the finite element solvers. We present an infrastructure for the digitalization of such information, where the required material data are collected including a process for maintaining traceability and consistency of the source data. Information about the compositional characteristics and processing history are captured. Built-in software modules or external client tools can be used for calibration of material models with the resulting material file linked to the source data. The accuracy of the reduced order model can be checked by running a validation simulation against a physical test. Models can be published and released into a master CAE materials library output where they can be used to model such materials for a variety of target solvers. This process improves the reliability and accuracy of composites simulation.

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Aerospace and Defense Automotive Structural Analysis Composites Presentations Materials Information Management


Datapoint Newsletter: Winter '19, Vol. 25.1

High Humidity Testing, TestCart Online Order System, Matereality Version 12, Upcoming Events

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Mechanical Plastics Newsletters Matereality Materials Information Management


Matereality Workgroup Material DatabasePro Training: Webinar Recording

Introduction to user tasks in materials information management with Matereality Workgroup Material DatabasePro software.

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Matereality Materials Information Management Altair HyperWorks


Datapoint Newsletter: Vol. 24.2

New Synergies with Applus+ Laboratories, Expanded Test Catalog

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Mechanical Metals Structural Analysis LS-DYNA Abaqus Composites RADIOSS Newsletters Validation 3D Printing


A Framework for the Calibration and Validation of Multiscale Material Models

Multiscale material models are being increasingly applied for high-level simulation of complex materials, such as continuous reinforced material products (unidirectional and woven product forms). These multiscale material models require input data from a minimum of experimental tests, which are then used to characterize a multiscale material model that can be used in structural simulations within a variety of commercial finite element solvers, including OptiStruct, RADIOSS, Abaqus, and LS-Dyna. Using these models, it is possible is to predict the performance of layups from single layer properties, as well as performance of these composites under complex loadings. We present a framework where the required experimental data are collected, including a process for maintaining traceability and consistency of the experimental data using the Matereality software. Experimental test data are transmitted to the HyperWorks Multiscale Designer software for development of an appropriate multiscale material model. The resulting multiscale material model data is stored within Matereality linked to the source experimental data. Different manufactured layups are tested and compared to simulation in a validation step which provides a measure of the solution accuracy.

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Mechanical Nonlinear Material Models Structural Analysis LS-DYNA Abaqus Composites RADIOSS Validation OptiStruct


Datapoint Newsletter: Winter '18, Vol. 24.1

Focus on Validation of Simulation: CAETestBench Validation for crash, additive manufacturing, injection molding, rubber hyperelasticity; Review of NAFEMS publication on V&V.

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Plastics Rubbers Metals High Speed Testing Injection Molding Structural Analysis LS-DYNA Abaqus ANSYS RADIOSS Newsletters Validation 3D Printing OptiStruct