Quantcast Notation - dm2_080029

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or:
tm = (ib/ru)(3 - mu/2mE) + (1/ru)[(mu/2mE) - 1]
x (9i2b - 6mEruXE)1/2
10.
NOTATION.
a
-
Acceleration of system, in/ms2
B
-
Pressure intensity, psi
ib
-
Unit blast impulse, psi-ms
KE
-
Equivalent elastic unit stiffness
KLM
-
Load-Mass factor
m
-
Unit mass, psi-ms2/in
ma
-
Average of the effective elastic and plastic unit masses,
psi-ms2/in
me
-
Effective elastic unit mass, psi-ms2/in
mu
-
Effective unit mass in the ultimate range, psi-ms2/in
mup
-
Effective unit mass in the post-ultimate range, psi-ms2/in
_
p
-
Applied pressure, psi
_
p
-
Effective pressure during time interval 0 < /= t < tE, psi
PE
-
Pressure at time t = tE, psi
r
-
Unit resistance of system, psi
ru
-
Ultimate unit resistance, psi
rup
-
Post-ultimate unit resistance, psi
tE
-
Time to reach maximum elastic deflection, ms
tm
-
Time at which maximum deflection occurs, ms
tu
-
Time at which ultimate failure occurs, ms
t1
-
Time at which partial failure occurs, ms
T
-
Load duration, ms
TN
-
Natural period of vibration, ms
v
-
Velocity, in/ms
2.08-13





 


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