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...
September 16, 2019 | by Datapoint Newsletters | views 4949
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
July 22, 2015 | by Paul Du Bois | views 4947
"Simulation of rubber-like materials is usually based on hyperelasticity. If strain-rate dependency has to be considered viscous dampers are added to the rheological model. A disadvantage of such a description is timeconsuming parameter identification associated with the damping constants. In this paper, a tabulated formulation is presented which allows fast generation of input data based on uniaxial static and dynamic tensile tests at different strain rates. Unloading, i.e. forming of a hysteresis, can also be modeled easily based on a damage formulation. We show the theoretical background and algorithmic setup of our model which has been implemented in the explicit solver LS-DYNA [1]-[3]. Apart from purely numerical examples, the validation of a soft and a hard rubber under loading and subsequent unloading at different strain rates is shown."
Mechanical Rubbers Hyperelastic Rate Dependency Yielding/Failure Analysis Automotive High Speed Testing LS-DYNA Research Papers
June 17, 2008 | by Datapoint Newsletters | views 4923
New Tests and TestPaks. New Presentations On-line.
May 08, 2009 | by Datapoint Newsletters | views 4917
DatapointLabs Featured in Technical Conferences.
Plastics Rubbers Foams Hyperelastic High Speed Testing Nonlinear Material Models LS-DYNA Abaqus Newsletters
April 06, 2012 | by Datapoint Newsletters | views 4908
Technical Note: On the Conditioning of Plastics Prior to Testing. Expansion of Conditioning Capabilities.
July 14, 2011 | by Datapoint Newsletters | views 4904
New Lab Space & Equipment
October 07, 2008 | by Datapoint Newsletters | views 4903
A Makeover for DatapointLabs.
September 21, 2006 | by DatapointLabs | views 4879
The volume of plastics that are subjected to impact simulation has grown rapidly. In a previous paper, we discussed why different material models are needed to describe the highly varied behavior exhibited by these materials. In this paper, we cover the subject in more detail, exploring in depth, the nuances of commonly used LS-DYNA material models for plastics, covering important exceptions and criteria related to their use.
Plastics Aerospace and Defense Automotive Consumer Products Material Supplier Industrial Goods Packaging Nonlinear Material Models Structural Analysis LS-DYNA Abaqus ANSYS PAM-CRASH Altair RADIOSS Research Papers
September 15, 2011 | by Datapoint Newsletters | views 4877
Expansion: New Lab Space, New TestPaks. DIGIMAT MX Reverse Engineering Update.
August 24, 2015 | by Sigmasoft | views 4874
The profitability of a molded rubber product depends to a large extent on the mold efficiency. To achieve the maximum productivity, besides the larges possible number of cavities it is desirable to minimize the rubber consumption and to produce parts without defects.
Rheology Rubbers Automotive Biomedical Injection Molding SIGMASOFT Newsletters
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