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Numerical simulation of impact welding processes with LS-DYNA
Impact welding enables metallurgical bonding even between dissimilar metals. The bond is formed during a high speed impact between the two workpieces to be joined. In the application, the accelerating force is provided by an explosive ...
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SESSIONS F 5 - 8
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Cohesive Contact Modeling in Thermoforming Simulations of Metal-CRFP-Metal Sandwich Sheets
A novel carbon fiber reinforced metal laminate based on thermoplastic polymer is investigated in the project LEIKA. For the safeguarding of the production of the parts made of this material, coupled thermo-mechanical simulations have ...
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SESSIONS F 5 - 8
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LS-DYNA Critical Involvement in Successful MSC Fatigue Analysis of Magnesium Stabilizer Clamp
LS-DYNA’s origins and core-competency lie in its well-known contact Algorithms, which is very powerful and functional. In order to simulate the details in the contact zones of bolt connection of the magnesium stabilizer clamp under ...
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SESSIONS F 5 - 8
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Chemically Reactive Flows in Airbag Inflator Chambers
Airbags are part of an important vehicle safety system, and the inflator is an essential part that generates a specific volume of gas to the airbag for a short duration of time. Recently, we have developed numerical models of ...
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SESSIONS F 5 - 8
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Critical Plane Approach and its Application in Random Fatigue Life Prediction
A new feature of random vibration analysis is available in LS-DYNA since version 971, which has been shown to be a powerful tool for the simulation of vibration shaker table test driven by power spectrum density (PSD). In particular, ...
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SESSIONS F 5 - 8
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Calculation and validation of material tests with specimens made out of filled elastomers
In deep-drawing dies for steel sheet parts of car bodies huge masses are moved. To prevent vibrations, which occur by sudden acceleration or stopping of those masses, elastomeric tubular dampers [1] are used. The dampers are made out ...
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SESSIONS F 1 - 4
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Topology optimization of transient nonlinear structures—A comparative assessment of methods
Topology optimization considering transient nonlinear behavior of mechanical structures, e.g. automotive crash, remains a challenge in both the implementation as well as computational effort. In recent years, efficient optimization ...
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SESSIONS F 1 - 4
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On Automatic Crash Model Translation
This paper discusses some issues relevant to automatic crash model translation (conversion), based on SimTech experience. Automatic crash model conversion is in many ways similar to automatic language translation. The first level of ...
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SESSIONS F 1 - 4
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Challenges in Tire Modeling for Small Overlap Crashworthiness
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SESSIONS F 1 - 4
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Modeling of Self-Piercing Riveted Joints for Crash Simulation – State of the Art and Future Topics
The requirements for energy efficiency and lightweight construction in automotive engineering rise steadily. Therefore a maximum flexibility of different materials is necessary and new joining techniques are constantly developed. The ...
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SESSIONS F 1 - 4