The Method of the Residual Life Prediction of Pressure Vessel Defect Based on Defect Failure Rate Inflection Point

Abstract:

The safety assessment of pressure vessel gets increasing attentions with the more extensive application. Taking the <safety assessment of pressure vessel with defect in service> as theoretical basis accomplished the failure simulation system. Completed the simulation of failure patch. Raised the new curve of failure patch. Achieved the simulation of failure rate and found the rate inflection point. And then work out the largest dimension change and the highest stress cycle times that allowed , based on the rate inflection point put forward a method of residual life calculation of pressure vessel and the definition of safety margin.

• Periodical: Applied Mechanics and Materials (Volumes 423-426)
• Pages: 1905-1909
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.423-426.1905
• Online since: September 2013
• Authors: Chong Xu*, Wei Long, Da Qing Tian, Si Jian Lin
• Keywords: Defect Evaluation, Pressure Vessel, Rate Inflection Point, Residual Life

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