Dynamic Pressure Impulse for Near-Ideal and Non-Ideal Blast Waves -- Height of Burst Charts
Abstract
Dynamic pressure impulse, I sub q was evaluated as a function of wheeled vehicle displacement (1/4 ton and 2-1/2 ton trucks) for ideal/near ideal and nonideal blast environments. Good correlation was obtained between dynamic pressure impulse and vehicle displacements using least squares fits. Using the quadratic equations derived by least squares fit the I sub q were calculated from known vehicle displacements and these were averaged with initial estimates of I sub q (ideal/near-ideal) and measured I sub q (non-ideal) to obtain iterated values of I sub q. Least square fits were also applied to I sub q versus scaled ground range and displacement versus scaled ground range for various values of n, the exponent of yield. The values of n providing the best fits were between 0.4 and 0.43 for displacements and n = 0.42 or 0.43 for I sub q as a function of scaled range.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 15, 1981
- Accession Number
- ADC040572
Entities
People
- E. J. Bryant
- F. J. Allen