Datapoint Newsletter: Spring '16, Volume 22.2
April 11, 2016 | by Datapoint Newsletters | views 4624
Focus on Validation, STEM Education, New Test Apparatus, Support for Altair HyperWorks
strengthening the materials core of manufacturing enterprises
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...
April 11, 2016 | by Datapoint Newsletters | views 4624
Focus on Validation, STEM Education, New Test Apparatus, Support for Altair HyperWorks
February 25, 2016 | by Moldex3D | views 3127
Create a new material file in Moldex3D r13 from XML files generated by the Matereality CAE Modeler
January 21, 2016 | by Datapoint Newsletters | views 4418
Control Enterprise Materials Information; ANSA Partnership; New TestPaks for RADIOSS and PolyXtrue; Material Model Validation
January 19, 2016 | by Matereality | views 3395
The Export to ANSA capability for nonlinear CAE applications is included in Matereality v9. Once your Matereality database has been populated with CAE Material files, you can select the ones appropriate for your analysis and export them to a master material file for ANSA. Then use the ANSA plug-in to import it, and apply the desired material file to your analysis.
January 11, 2016 | by Altair Engineering | views 3457
Finite element analysis contains assumptions and uncertainty from a number of sources, which can impact the fidelity of the simulation. This uncertainty is often left untested up to prototyping stages. DatapointLabs’ CAETestbench Validation service was developed to add a mid-stage validation step to a designer’s workflow, to test these simulations before parts are made, in order to build confidence in an engineer’s model beforehand. This validation step is illustrated in a 3D printing application.
November 11, 2015 | by Altair Engineering | views 3793
[We] introduced the topic of injection molding process simulation and the influence of the manufacturing process on structural analysis. The strength and stiffness of a part can be inaccurately represented if the manufacturing process conditions are not properly considered. This results in a different calculation of system natural frequencies or improper estimation of the energy absorbing characteristics. We continue on this topic, extending the scope to advanced technologies available in the Altair Partner Alliance (APA) to help solve the problem of proper design validation with fiber reinforced plastics.
Mechanical Aerospace and Defense Automotive Injection Molding Structural Analysis Moldex3D DIGIMAT Papers RADIOSS Newsletters Validation
September 23, 2015 | by DatapointLabs | views 3835
Thermoplastic materials are one of the largest categories of materials to be injection molded. Moisture-sensitive materials can lead to issues in the molding process. Simulation of the injection molding process requires sophisticated and exact material properties to be measured. This presentation discusses the testing required to characterize a thermoplastic material for use in SIGMASOFT, as well as the effects of moisture on viscosity measurement of a moisture-sensitive material. Consequences of basing designs on wet or dry materials are covered. Implementation of material data into the software to produce a successful injection molding simulation simulation is described.
Rheology Plastics CAE Vendor/Supplier Injection Molding Nonlinear Material Models SIGMASOFT Presentations
September 15, 2015 | by Altair Engineering | views 4201
With the growing interest in additive manufacturing in the aerospace industry, there is a desire to accurately simulate the behavior of components made by this process. The layer by layer print process appears to create a morphology that is different from that from conventional manufacturing processes. This can have dramatic impact on the material properties, which in turn, can affect how the material is modeled in simulation. We tested an additively manufactured metal part for mechanical properties and validated the material model used in a linear static simulation.
Mechanical Aerospace and Defense CAE Vendor/Supplier Structural Analysis RADIOSS Presentations Validation 3D Printing
September 10, 2015 | by DatapointLabs | views 3815
Molding Views, brought to you by the Injection Molding Division of the Society of Plastics Engineers
Rheology Mechanical Injection Molding Moldflow Moldex3D SIGMASOFT Multi-CAE Molding Simpoe-Mold Newsletters
August 26, 2015 | by Massimo Nutini | views 3754
The airbag door system is one of the most delicate aspects in the design phase of a car instrument panel: seamless systems are increasingly used, which combine styling criteria with good functional performances. These systems typically include a tear seam, which may be obtained through laser scoring, to pre-determine the location of the opening during airbag deployment. The design of the scoring line is currently validated through experimental tests on real life exemplars, submitted to airbag deployment, resulting in high development times and relevant costs. This is the main reason which suggests proposing numerical simulation in the design phase, not to substitute actual part homologation by testing but in order to limit the scope and complexity of the experimental campaign, thus reducing the development costs and the time to market. So far, modeling the scoring line has been difficult due to limitations in the testing methods and simulation codes available to the industry. The methodology proposed in this paper takes advantage from the availability of a material law as LS-Dyna SAMP-1, with polymer-dedicated plasticity, damage model and strain-rate dependent failure criteria, which is supported by local strain measurement used for material characterization. The method, here described in detail, is validated on a benchmark test, consisting in the real and virtual testing on a variety of scoring profiles obtained on a polypropylene box submitted to high speed impact test.
Plasticity Yielding/Failure analysis Automotive High Speed Testing LS-DYNA Research Papers Validation
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