Earth penetrator strain gage applications
During earth entry of high speed projectiles large, time-dependent forces are applied to the structure. In order to accurately model the response of these penetrators using both finite element methods and lumped mass-spring models, this force-time relationship must be quantified and used as an input for the analytical models. Two earth penetrators were internally strain gaged to obtain strains in the penetrator body which could be used to calculate the applied forces. The installation techniques used to install the gages 0.46 m (18 in.) from the end of the 127 mm (5 in.) inside diameter penetrator case are presented. Gage and adhesive selection as well as wiring and data acquisition techniques designed to survive the high inertial loads encountered during earth entry are discussed and preliminary results from the first test are shown. 4 refs., 6 figs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5733121
- Report Number(s):
- SAND-87-2561C; CONF-871184-1; ON: DE88002260
- Resource Relation:
- Conference: IMOG Fall meeting, Kansas City, MO, USA, 3 Nov 1987; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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