Page 29 - Analysis and Design of Energy Geostructures

xxx List of symbols

Greek symbols
Symbol Variable name Unit measure
Mean strain in the concrete between cracks ; με
ε cm
ε cu1 Nominal ultimate concrete strain ; με
ε c1 Concrete strain at peak stress ; με
Strain at centre of gravity ; με
ε G
Radial strain; nominal strain in reinforcement ; με
ε r
ε rr ; ε rθ ; ε rz ; ε zz ; Strains in cylindrical coordinates (r, θ, z) ; με
ε zθ ; ε θθ
Mean strain in the reinforcement under the relevant combination of ; με
ε rm
loads
Horizontal strain in the x direction ; με
ε x
Horizontal strain in the y direction ; με
ε y
Vertical strain ; με
ε z
Strain vector ; με
ε i
ε e Elastic strain vector ; με
ε i p Plastic strain vector ; με
i
Strain tensor ; με
ε kl ; ε ij
ε ; ε e Elastic component of the strain tensor ; με
e
kl ij
ε ; ε p Plastic component of the strain tensor ; με
p
kl ij
Increment of strain ; με
dε ij
dε ; dε e Increment of elastic strain ; με
e
kl ij
dε ; dε p Increment of plastic strain ; με
p
kl ij
ε th Strain under blocked thermal expansion conditions ; με
b
ε th Strain under free thermal expansion conditions ; με
f
ε th Strain under free thermal expansion conditions of pile ; με
f ;EP
ε th Strain under free thermal expansion conditions of soil ; με
f ;soil
ε th Observed thermally induced strain ; με
o
ε th Average strain under free thermal expansion conditions ; με
f
Average value of radial strain ; με
ε r
Average value of vertical strain ; με
ε z
ε th Average observed thermally induced strain ; με
o
Volumetric strain ; με
ε v
Incremental change of volumetric strain ; με
dε v
ε e Elastic volumetric strain ; με
dε v e Incremental change of elastic volumetric strain ; με
ε p v Plastic volumetric strain ; με
dε v p Incremental change of plastic volumetric strain ; με
v
Deviatoric strain ; με
ε q
Incremental change of deviatoric strain ; με
dε q
ε e Elastic deviatoric strain ; με
q
dε e Incremental change of elastic deviatoric strain ; με
q
ε p Plastic deviatoric strain ; με
q
dε p Incremental change of plastic deviatoric strain ; με
q
ε ν p;iso Volumetric plastic deformation developed with the isotropic mechanism ; με
ε p;iso;cyc Volumetric plastic deformation developed with the isotropic mechanism ; με
ν
starting from the last reheating
Compressive ultimate strain of concrete ; με
ε uc
Design strain at maximum load ; με
ε ud