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Introduction of an Electromagnetism Module in LS-DYNA for Coupled Mechanical-Thermal-Electromagnetic Simulations
A new electromagnetism module is being developed in LD-DYNA for coupled mechanical/thermal/electromagnetic simulations. One of the main applications of this ...
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9th International LS-DYNA Conference
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Optional Strain-Rate Forms for the Johnson Cook Constitutive Model and the Role of the Parameter Epsilon_0
A brief review of the standard Johnson-Cook model is presented. Three optional strainrate forms are introduced and calibrated to laboratory data for A36 steel. ...
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6th European LS-DYNA Conference
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An Eulerian Finite Element Model of the Metal Cutting Process
The Eulerian element formulation was employed in the modeling of the orthogonal metal cutting process of commercial purity copper. The constitutive material ...
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8th International LS-DYNA Conference
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High-Strength Alloyed Steel: Modelling Dynamic and Multiaxial Loading Conditions
This work reports on the modelling of failure behaviour in case of a high strength alloyed steel, experimentally subjected to a range of strain rates and ...
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12th European LS-DYNA Conference
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Metallic Materials
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A Comparison of Isotropic (*MAT_224) and Anisotropic (*MAT_264) Material Models in High Velocity Ballistic Impact Simulations
To improve the modeling of metals in high velocity impacts, there have been many developments in constitutive material modeling for LS-DYNA ® . One such ...
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14th International LS-DYNA Conference
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Aerospace
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Material Constitutive Parameter Identification using an Electromagnetic Ring Expansion Experiment Coupled with LS-DYNA® and LS-OPT®
In this paper, a parameter identification procedure to obtain the constitutive properties of metals at high strain rate and high temperature is presented. This ...
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10th International LS-DYNA Conference
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The Influence of Johnson-Cook Parameters on SPH modeling of Orthogonal Cutting of AISI 316L
Over the past few decades, there has been a growing interest in modelling of machining processes. In this regard, smoothed particle hydrodynamics (SPH) is one ...
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10th European LS-DYNA Conference
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3 Process IX - Cutting-Model Reduction
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Plastic Instability of Rate-Dependent Materials - A Theoretical Approach in Comparison to FE Analyses
In FE simulations of dynamic events, the accuracy of numerical results strongly depends on the quality of the material models and parameters used. Material ...
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11th European LS-DYNA Conference
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Crash / Metal Failure
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A COMPARATIVE REVIEW OF DAMAGE AND FAILURE MODELS AND A TABULATED GENERALIZATION
Reliable prediction of damage and failure in structural parts is a major challenge posed in engineering mechanics. Although solid material models predicting ...
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6th European LS-DYNA Conference
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Implementation of Constitutive Equations for Viscoplasticity with Damage and Thermal Softening into the LS-DYNA Finite Element Code, with Application to Dynamic Fracture of Ring- Stiffened Welded Structures
Constitutive equations for a viscoplastic model with damage and thermal softening are implemented in the Finite Element (FE) code LS-DYNA using a User Defined ...
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6th International LS-DYNA Conference