Drop Tests
Many of the product checks include the testing of impact loading. Typically the resistance of consuming goods due to an impact after a free fall out of the usage height are examined. Examples for such consuming goods are laptops, cell phones, drilling machines or tetrapacks filled with liquid. Furthermore the package industry shows large interest to assure a high impact reliability with their package.
In this event the computational possibilities of LS-DYNA in the field of impact and falling test simulation will be demonstrated and application examples will be provided. Especially it will be focused on the modeling possibilities of LS-DYNA with anplastics and foam materials. The approaches for the identification of the material parameters will be illustrated.
Content:
- Introduction
- Physics for the propagation of stress waves at the drop test
- Characteristics of plastics materials at sudden impact
- Recommendations for the contact formulation for drop tests
- Liquid filled containers
- Modeling of the liquid, the structure as well as the boundary conditions
- Methods for fluid-structure coupling in LS-DYNA (ALE, SPH, Lagrange elements)
- Interpretation of the results
- Possible applications and limitation for the simulation of drop tests
- Validation with experimental results
- Examples
- Analyses of the drop test of a package of an electronical machine out of EPS
- Analyses of the drop test of an electronical machine
- Impact of a liquid filled package
| Dates | Registration | Calendar | Duration/days | Location | Lecturer | Fee | Language |
| 24.10.2012 | Register |
|
1/2 | Stuttgart |
|
free | german |
