PSI - Issue 14

S.C.S.P. Kumar Krovvidi et al. / Procedia Structural Integrity 14 (2019) 855–863 S.C.S.P. Kumar Krovvidi/ Structural Integrity Procedia 00 (2018) 000–000

860

6

Table 3: Material properties used during analysis for estimating elasto-plastic strain in the bellows

Cyclic strain hardening coefficient (K  )

Cyclic strain hardening exponent (n  )

E (MPa)

YS (MPa)



200000

0.3

211 (Min)

798.3

0.3387

Figure 6: Geometry, boundary conditions and loading applied on the bellows for elasto-plastic analysis using cyclic stress-strain curve

Figure 7: Strain induced in the bellows due to combined pressure and tensile movement

Figure 8: Stain induced in the bellows due to combine pressure and compressive movement