Empirical Model of Puncture Energy for Metals
- Univ. of Texas at Dallas, Richardson, TX (United States)
- Univ. of New Mexico, Albuquerque, NM (United States)
- Cooper Union for the Advancement of Science and Art, New York, NY (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
The purpose of this work is to fit a previously developed empirical equation for puncture energy to simulation data. The conservative puncture energy equation could be used to expedite the process of performing calculations in the development of safety measures, avoiding the need to create complex finite element models for specific puncture scenarios. A total of 108 simulations are developed by varying coupon thickness, coupon material, probe shape, and probe diameter. The simulations are comprised of a low-velocity probe puncturing the coupons, from which the probe kinetic energy change is calculated. The empirical equation is fit to the dimensions, material properties, and energy results using a non-linear least-squares regression method within Python, which determines the two constant parameters for each fit. More statistically significant fit results are achieved by separating the data by probe shape and coupon material.
- 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:
- 1817295
- Report Number(s):
- SAND2021-9747; 698559
- Country of Publication:
- United States
- Language:
- English
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