MODELING OF STRESS CORROSION CRACK INITIATIONS OF POLYETHYLENE PIPE TRANSPORTING CHLORINATED WATER

Stress corrosion cracking is one of the long-term failure mechanism of thermoplastic pipes when exposed to the oxidative agents, such as the chlorinated water. In this paper, the stress corrosion crack initiation model was suggested based on the diffusion of chlorinated water with oxidation, combining with the energy analysis by cracking. The multiple micro cracking, which is a dominant feature in stress corrosion cracking failure, was successfully simulated by the proposed model.
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