Basic study of frictional temperature of total hip replacement
Details
A Simplified calculation for contact temperature proposed by Kennedy was applied to a spherical bearing. The solutions obtained were compared with the experimental study. In the case of a femoral head of CoCrMo against UHMWPE cup, the contact temperature rise of 10.4 ℃ was obtained, which agreed well with the experimental value. On the other hand, in the case of an alumina (Al_2O_3) head against UHMWPE cup, the temperature rise was 5.8 ℃, which was relatively smaller value in compared with the experimental results. As the results of this research, it was concluded that the Kennedy's method was profitable in contact temperature calculation.
