Stress distribution measurement method and stress distribution measurement system

A stress distribution measurement method of measuring stress distribution generated on a structural object including two support parts and a beam part provided between the support parts when a moving object moves along the structural object, the method comprising:

• generating first data by sensing, through a first sensing unit, of the moving object moving between the support parts or between identification display objects attached to the structural object;
• calculating a movement duration based on the first data, the movement duration being a period of time in which the moving object moves between the support parts of the structural object or between the identification display objects;
• generating, as second data, thermal data in accordance with temperature at a surface of the beam part of the structural object by sensing of the surface of the beam part through a second sensing unit;
• calculating a temperature change amount based on a second data group;
• and
• calculating a stress change amount based on the temperature change amount to calculate stress distribution generated on the surface of the beam part of the structural object based on the stress change amount,
• wherein the first sensing unit and the second sensing unit are synchronized such that the first data and the second data correspond to each other with respect to time, the second data group includes at least a portion of the second data, and the portion of the second data corresponds to the movement duration.