Empirical Model for Energy Required to Puncture Specimens of 6061-T651 Aluminum Plate
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Specimens of 6061-T651 aluminum with different thicknesses were punctured by AISI 4340 steel probes of three diameters in a series of drop-table experiments. The probes are all right circular cylinders. The times when a probe contacts a specimen and when it breaks through are indicated by the acceleration of the drop-table carriage. The change in the total energy of the carriage between these times is the energy mitigated by each specimen. Only a few replications were performed with each specimen thickness and probe diameter, so the data sets are not amenable to classical statistical inference. Rather than calculate statistics for each combination of geometric parameters, an empirical model is derived that fits all of the experimental data. The model predicts future observations within the range of specimen thicknesses and probe diameters that were tested. Confidence intervals based on the variance in the data account for uncertainty. The lower bounds on the mitigated energy for a few select scenarios are tabulated below.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- NA0003525
- OSTI ID:
- 2585600
- Report Number(s):
- SAND--2025-08270R; 1775340
- Country of Publication:
- United States
- Language:
- English
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