Abstract
The use of a new material is a hopeful strategy for breaking through the barrier of improving the product performance and/or the lowering of the product manufacturing cost. This paper proposes a methodology for decision making of a material used in machine structures from the standpoint of structural dynamics. First, purposes for use of new materials and evaluative parameters for decision making of material choice are described, and fundamental rules and knowledge for decision making are established. Then, based on those evaluative parameters and rules, general decision making procedures for material choice are constructed. Finally, for model cases of purposes for use of new materials, detailed decision making procedures are explained using also some numerical examples.
