| 초록 |
In the development period of interior plastic parts of vehicle, the heat cycle test is an essential procedure to be confirmed. It is important to obtain the material properties for thermal deformation analysis under the various temperature conditions. Especially, creep data of plastic material was introduced to study the time-dependent deformation behavior of the Instrument Panel (IP) in heat cycle test. The test has been fitted into a time-hardening type creep constitutive equation. The time-hardening version of the power-law creep model was applied to account for the permanent deformation after heat cycle test, verified through the comparison of test result with FEA result for simple model. |
