Civil Engineering Reference
In-Depth Information
4.2 Concluding remarks
It has been shown how sample programs can be built up from the library of subroutines
described in Chapter 3. A central feature of the programs has been their brevity. A typical
main program has around 100 lines, is comprehensible to the user and is well suited for
compilation on a small computer. In subsequent chapters, programs of greater complexity
are introduced but the central theme of conciseness is adhered to.
Glossary of variable names used in Chapter 4
Scalar integers:
fixed freedoms
number of fixed displacements
i
simple counter
simple counter
iel
number of load increments
incs
counts plastic iterations
iters
counts load increments
iy
iwp
SELECTED REAL KIND(15)
simple counter
k
limit
plastic iteration ceiling
loaded nodes
number of loaded nodes
ndim
number of dimensions
ndof
number of degrees of freedom per element
nels
number of elements
number of degrees of freedom in the mesh
neq
number of integration points per element
nip
number of nodes per element
nod
number of degrees of freedom per node
nodof
number of nodes in the mesh
nn
number of different property types
np types
number of material properties
nprops
number of restrained nodes
nr
number of elements in the
x
-direction
nxe
number of elements in the
y
-direction
nye
Scalar reals:
aa
element dimension in
x
-direction
element axial force
axial
element dimension in
y
-direction
bb
plate flexural stiffness
d
set to 4.0
d4
d12
set to 12.0
e
Young's modulus
eval
smallest eigenvalue (buckling load)
one
set to 1.0
