Title: Rational Design with Monolithic Refractories
Author(s): Timothy J. Fowler
Publication: Symposium Paper
Appears on pages(s): 57-72
Keywords: computers; failure; finite element method; refractories; refractory concretes; strains; stress analysis; stresses; structural analysis; structural design; thermal stresses.
American Concrete Institute Committee 547 has introduced the concept of rational design based on a comprehensive analysis of the stress and strain fields. The approach utilizes recently developed thermal and stress analysis techniques to predict the service performance and life of a refractory. With this knowledge, a more optimum design can be developed, and design for a specific life is feasible.
Current design practice is often based on relative material properties, and trial and error design techniques. While satisfactory for many situations, this approach breaks down when a background of experience is not available.
The rational design approach provides insight into the behavior of the refractory and can be applied to the overall refractory system, or to small isolated components. The analytical techniques are relatively new and the application to refractory is still in its infancy.
Successful use of rational design techniques will result in reduced initial cost, savings of downtime, and improved performance. Considerable research and development work is required to refine, simplify, and apply this new design approach, and to develop the required engineering data.