PSI - Issue 22

Yufei Li et al. / Procedia Structural Integrity 22 (2019) 43–50 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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(a) First five tension/internal pressure cycles at room temperature

(b)Warming up

(c) First fifty thermal cycles

(d) 5 times tension/internal pressure cycle at high temperature

(e) Second fifty thermal cycles

(f)Cooling

(g) Second five tension/internal pressure cycles at room temperature

Fig. 7. Von Mises stress nephogram of thermal cycle test

6. Conclusions A three-dimensional finite element model of a premium connection was established. The loads were applied according to the ISO 13679 CAL IV series B test and thermal cycle test. The integrity of the connection was simulated and analysed, and some conclusions are drawn from the research. (1) Bending load has a great influence on the Von Mises stress and contact pressure of premium connection.