I
Impulse
I 1 , I 2 , I 3 Stress tensor invariants
k
Boltzmann’s constant
K
Kinetic energy
L
Spatial gradient of velocity
m
Mass
m ij
Distributed moment in couple stress theory
n i
Direction cosine
p
Momentum
q
Heat flux vector
Q
Plastic potential
Q
Total heat input
s
Entropy
S
Deviatoric stress tensor
t
Time
T.S.I.
Thermodynamics State Index
u, v, w
Displacements along spatial coordinates, x, y, z, respectively.
U
Strain energy
v
Velocity
V
Volume
W
Spin tensor
xvi
Abbreviations