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...
January 21, 2016 | by Datapoint Newsletters | views 6563
Control Enterprise Materials Information; ANSA Partnership; New TestPaks for RADIOSS and PolyXtrue; Material Model Validation
April 28, 2015 | by DatapointLabs | views 6457
There is interest in quantifying the accuracy of different material models being used in LS-DYNA today for the modeling of plastics. In our study, we characterize two ductile, yet different materials, ABS and polypropylene for rate dependent tensile properties and use the data to develop material parameters for the material models commonly used for plastics: MAT_024 and its variants, MAT_089 and MAT_187. We then perform a falling dart impact test which produces a complex multi-axial stress state and simulate this experiment using LS-DYNA. For each material model we are able to compare simulation to actual experiment thereby obtaining a measure of fidelity of the simulation to reality. In this way, we can assess the benefits of using a particular material model for plastics simulation.
Mechanical Plastics Rate Dependency LS-DYNA Research Papers Validation
January 09, 2018 | by Matereality | views 6457
How to import materials into SOLIDWORKS Simulation using the SOLIDWORKS Materials Web Portal powered by Matereality
March 05, 2019 | by Datapoint Newsletters | views 6453
High Humidity Testing, TestCart Online Order System, Matereality Version 12, Upcoming Events
Mechanical Plastics Newsletters Matereality Materials Information Management
June 08, 2010 | by Datapoint Newsletters | views 6394
Global Expansion Update. LS-DYNA Support Update. New TestPaks Partner. Photo Documentation of Testing.
September 15, 2015 | by Altair Engineering | views 6374
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 Altair RADIOSS Presentations Validation 3D Printing
September 16, 2019 | by Datapoint Newsletters | views 6370
New DatapointLabs Website; High Temperature Crash Properties
Density Rheology Thermal Mechanical Plastics Automotive High Speed Testing Injection Molding Structural Analysis LS-DYNA ANSYS DIGIMAT Composites Newsletters Validation
May 07, 2020 | by Datapoint Newsletters | views 6366
DatapointLabs Celebrates 25 Years
Mechanical Plastics Metals Automotive Structural Analysis Moldflow LS-DYNA Abaqus ANSYS Moldex3D Newsletters Validation Altair HyperWorks
April 06, 2017 | by DatapointLabs | views 6351
Performing simulations that can approximate the material behavior of ductile plastics is daunting. Factors such as nonlinear elasticity, inclusion of volumetric and deviatoric behavior, finding and correctly applying the proper material data to create failure criteria are only a few hurdles. A variety of material models exist, each with numerous settings and varied parameter conversion methods. Combined, these cause a great deal of uncertainty for the FEA user. In previous papers, we delved into material models for both LS-DYNA (MAT089, MAT024, and MAT187) and ABAQUS (*ELASTIC, *PLASTIC) using mid-stage validation as a technique to probe solver accuracy. In this presentation, we summarize our findings on the benefits of this combined approach as a general tool to test and tune simulations for greater reliability.
Mechanical Plastics Automotive High Speed Testing Nonlinear Material Models Structural Analysis Universal Crash Presentations Validation
October 22, 1997 | by DatapointLabs | views 6345
With the recent changes in the crashworthiness requirements for US automobiles for improved safety, design engineers are being challenged to design interior trim systems comprised of polymeric materials to meet these new impact requirements. Impact analysis programs are being used increasingly by designers to gain an insight into the final part performance during the design stage. Material models play a crucial role in these design simulations by representing the response of the material to an applied stimulus. In this work, we seek to develop novel test methods to generate high speed stress-strain properties of plastics, which can be used as input to structural analysis programs...
Plastics Metals Aerospace and Defense Material Supplier Toys/Sporting Goods Packaging Home Appliances High Speed Testing Nonlinear Material Models Structural Analysis Thermoforming LS-DYNA Abaqus ANSYS MSC.DYTRAN PAM-CRASH Research Papers
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