A Brief History
Finite Element Analysis
(FEA) was first developed in 1943 by R. Courant, who utilized the Ritz method
of numerical analysis and minimization of variational calculus to obtain
approximate solutions to vibration systems. Shortly thereafter, a paper published
in 1956 by M. J. Turner, R. W. Clough, H. C. Martin, and L. J. Topp established
a broader definition of numerical analysis. The paper centered on the
"stiffness and deflection of complex structures".
By the early 70's, FEA
was limited to expensive mainframe computers generally owned by the
aeronautics, automotive, defense, and nuclear industries. Since the rapid
decline in the cost of computers and the phenomenal increase in computing
power, FEA has been developed to an incredible precision. Present day supercomputers
are now able to produce accurate results for all kinds of parameters.
What is Finite Element
Analysis?
FEA consists of a
computer model of a material or design that is stressed and analyzed for
specific results. It is used in new product design, and existing product
refinement. A company is able to verify a proposed design will be able to
perform to the client's specifications prior to manufacturing or construction.
Modifying an existing product or structure is utilized to qualify the product
or structure for a new service condition. In case of structural failure, FEA
may be used to help determine the design modifications to meet the new
condition.