Том 7 (2004)


Investigation of high harmonics initiation in surface temperature field under fatigue loading

O. Plekhov1, T. Palin-Luc2, N. Saintier2

1Institute of Continuous Media Mechanics RAS, Perm, 614013, Russia
2ENSAM-LAMEFIP (EA 2727), Talence, F-33405, France

The peculiarities of surface temperature time evolution measured by infrared detector are investigated analytically. Based on the Kelvin equation it is shown that initiation of high harmonics in temperature field can be caused by both energy-determined sources (damage, viscous friction and so on) and artifact sources (motion of specimen surface, painting defect, external heating). The spatial distribution of high harmonics caused by artifact sources for different materials and experimental conditions is determined. The way depending on the investigated material properties to decrease the influence of artifact sources on temperature evolution recorded by infrared camera is proposed.

стр. 397 – 400

Образец цитирования:
O. Plekhov, T. Palin-Luc, N. Saintier  Investigation of high harmonics initiation in surface temperature field under fatigue loading // Физ. мезомех. - 2004. - Т. 7. - № Спец1. - С. 397-400


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