Foam in place simulation method

A foam in place simulation method that simulates steps of forming an foam in place molded product by supplying a foaming raw material inside a surface skin formed of a flexible member that is disposed inside a mold through an inlet port thus filling a foamed body into the inside of the surface skin, wherein the method is configured to simulate the steps of:

• setting a shape of the inside of the mold as a fixed boundary condition;
• setting a material characteristic value of the surface skin whose shape changes corresponding to a filling state of the foamed body into the inside of the surface skin;
• and
• forming the foam in place molded product from the surface skin based on the material characteristic value and the fixed boundary condition by filling the foamed body into the inside of the surface skin based on the shape of the surface skin at the time of setting the surface skin in the inside of the mold based on the fixed boundary condition and the material characteristic value.