A comparison of analytical techniques for modeling the Rayleigh-Taylor response of elastic-plastic solids
The Rayleigh-Taylor instability response of elastic-plastic solids can be modeled by approximate means. However, neither the linear elastic response equation nor the so-called /open quotes/minimum amplitude/close quotes/ instability criterion derived from rigid plastic analyses is sufficient to describe overall stability characteristics at very large driving pressures. We compare several versions of the modal or one-degree-of-freedom approximation technique and indicate the common features which must be included to obtain the qualitative response seen in numerical experiments.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6990194
- Report Number(s):
- SAND-88-0108; ON: DE88010372
- Country of Publication:
- United States
- Language:
- English
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