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Foundation ::
Finite Element Analysis ::
FECAP
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FECAP
Finite Element Composite Analysis Program for a Microcomputer
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Moderators:
Adopt This Application!
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SOURCE CODE AVAILABLE
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Advanced composite materials have gained use in the aerospace industry
over the last 20 years because of their high specific strength and stiffness,
and low coefficient of thermal expansion. Design of composite structures
requires the analysis of composite material behavior. The Finite Element
Composite Analysis Program, FECAP, is a special purpose finite element
analysis program for analyzing composite material behavior with a microcomputer.
Composite materials, in regard to this program, are defined
as the combination of at least two distinct materials to form one nonhomogeneous
anisotropic material. FECAP assumes a state of generalized plane
strain exists in a material consisting of two or more orthotropic phases,
subjected to mechanical and/or thermal loading.
The finite element formulation used in FECAP is displacement based and
requires the minimization of the total potential energy for each element
with respect to the unknown variables. This procedure leads to a set of linear
simultaneous equations relating the unknown nodal displacements to the
applied loads. The equations for each element are assembled into a global
system, the boundary conditions are applied, and the system is solved for
the nodal displacements. The analysis may be performed using either 4-mode
linear or 8-mode quadratic isoparametric elements. Output includes the
nodal displacements, and the element stresses and strains.
FECAP carries the NASA case number LAR-14109. It was originally released as part of the NASA COSMIC collection.
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