Question

Using a creep plot for any specific material, determine
i. The steady-state creep rate and
ii. The rupture lifetime.

Answer 1

Explanation:

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Answer 2

Answer:

1) The steady-state creep strain rates in the axial and lateral directions were ε ˙ 1 = 2.7 × 1 0 − 10 s − 1 and ε ˙ 3 = − 5.4 × 1 0 − 10 s − 1 . Similar results have been reported by le Guen et al.

2) Rupture life time predictions

This parameter can be derived from the stress and temperature dependence of the creep rate or time to rupture. The rate equation generally can be written in the form of the Arrhenius equation and expressed as PLM= T [21.577+ log (tr)].