Structural frequency functions for an impulsive, distributed forcing function
The response of a penetrator structure to a spatially distributed mechanical impulse with a magnitude approaching field test force levels (1 to 2 Mlb) was measured. The frequency response function calculated from the response to this unique forcing function is compared to frequency response functions calculated from response to point forces of about two thousand pounds and a hundred thousand pounds. The results show that the strain gages installed on the penetrator case respond similarly to a point, axial force and to a spatially distributed, axial force. This result suggests that the distributed axial force generated in a penetration event may be reconstructed as a point axial force when the penetrator behaves in a linear manner.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6093490
- Report Number(s):
- SAND-87-1369C; CONF-8710126-4; ON: DE87013811
- Country of Publication:
- United States
- Language:
- English
Similar Records
Analytical frequency-response functions for a structural system
Impulse response of a frequency-dependent delay