Multi-scale simulation-based functionally graded material design device and method for high temperature environment

A multi-scale simulation-based functionally graded material design device for a high temperature environment, comprising:

• an input unit configured to input information about each of a base material and an upper coating layer;
• a functionally graded material composition design unit configured to select a candidate group of the upper coating layer input to the input unit, determine a structure of a functionally graded material through structural optimization of a functionally graded material composition positioned between the base material and the upper coating layer, and calculate a physical property value;
• a modeling unit configured to analyze a thermal stress according to composition and thickness arrangement of the functionally graded material by performing multi-scale simulation based on the physical property value calculated by the functionally graded material composition design unit;
• and
• an output unit configured to output a composition and thickness of a candidate group of the functionally graded material based on a result of modeling of the modeling unit.