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- W583890450 abstract "Thermoplastics are increasingly used in structures where maintaining the structural integrity is important. Finite element analyses are used in order to calculate structural response caused by impact loads and require material models able to predict correct material behaviour. Thermoplastics tend to have a strong dependency on loading mode and rate of loading, and these effects are therefore discussed in order to understand plastics material behaviour. Use of elasto-plastic models for thermoplastics is investigated. This thesis focus on the use of already software implemented material models showing promising results in literature. Main focus is on the explicit FEM code LS-Dyna, and material models for use with LS-Dyna have been suggested. In order to gain insight into strain-rate effects LS-Dyna have been used with an elasto-plastic material model MAT 24 with strain-rate dependent post-yield behaviour. A tensile impact test at various impact velocities has been simulated. Results show good correspondence at lower velocities, whereas deviations occur at higher velocities." @default.
- W583890450 created "2016-06-24" @default.
- W583890450 creator A5085538164 @default.
- W583890450 date "2010-01-01" @default.
- W583890450 modified "2023-09-23" @default.
- W583890450 title "FEM Simulations of Impact Loads on Thermoplastic Structures" @default.
- W583890450 hasPublicationYear "2010" @default.
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