PSI - Issue 35

Enes Günay et al. / Procedia Structural Integrity 35 (2022) 42–50

48

Gu¨nay et al. / Structural Integrity Procedia 00 (2021) 000–000

7

(a) right before roller contact

(b) after initial roller contact

0 0.01 0.02 0.03 0.04 0.05 0.06

b

c

a

Tangential Strain

3 4 5 6 7 8 9

Process time [s]

(c) after full roller contact

(d) element’s tangential strain versus time

Fig. 6: Evolution of redundant strains on an element

(Avg: 75%) TEMP

102 121 141 160 179 198 218 237 256

25 44 64 83

(a) case 1 with default speeds

(b) case 2 with increased axial speed

(c) case 3 with increased tangential speed

Fig. 7: Workpice temperature distribution in FEM simulation after rollers moved 13.75 mm in axial direction

rates, temperatures up to 290 °C is observed. After that, temperature peaks and remains stabilized at that temperature around roller contact zones.