PHYSICAL CONSTANT ESTIMATION VALUE ACQUISITION METHOD

Provided are a method of accurately reproducing, about a temperature-dependent physical constant of a solid substance, in a cyberspace, up to a high-temperature region, a change involved in a temperature rise and acquiring an estimated value conforming to an actual phenomenon, a program for causing a computer to execute the method, a recording medium storing the program, an apparatus including an arithmetic operation unit that executes the program, a processed product manufacturing method using the method, and a fatigue damage monitoring method. An estimated value acquisition method of the present invention is a method of acquiring an estimated value A of a temperature-dependent physical constant of a solid substance at a predetermined temperature, the method including data-assimilating a predicted value F of the physical constant calculated by a finite element method analysis to a measured value Y of the physical constant to acquire the estimated value A.