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Low velocity earth-penetration test and analysis
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Fasanella, Edwin L. Knight Jr., Norman F. Kellas Sr., Sotiris Jones, Yvonne |
| Copyright Year | 2001 |
| Description | Modeling and simulation of structural impacts into soil continue to challenge analysts to develop accurate material models and detailed analytical simulations to predict the soil penetration event. This paper discusses finite element modeling of a series of penetrometer drop tests into soft clay. Parametric studies are performed with penetrometers of varying diameters, masses, and impact speeds to a maximum of 45 m/s. Parameters influencing the simulation such as the contact penalty factor and the material model representing the soil are also studied. An empirical relationship between key parameters is developed and is shown to correlate experimental and analytical results quite well. The results provide preliminary design guidelines for Earth impact that may be useful for future space exploration sample return missions. |
| File Size | 622402 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20010045672 |
| Archival Resource Key | ark:/13960/t3jx39x58 |
| Language | English |
| Publisher Date | 2001-01-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Finite Element Method Soils Penetration Drop Tests Low Speed Penetrometers Mathematical Models Space Exploration Diameters Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
