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首页> 外文期刊>Reliability Engineering & System Safety >Probabilistic inspection planning of offshore welds subject to the transition from protected to corrosive environment
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Probabilistic inspection planning of offshore welds subject to the transition from protected to corrosive environment

机译：近海焊缝的概率检测规划，受到腐蚀环境的过渡。

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摘要

In this paper, a novel method is proposed to optimize inspection plans for fatigue accounting for the situations where corrosion-free or protected environments are changed to a corrosive environment, denoted as the Transitional Environmental Protection (TEP) process. Probabilistic fracture mechanics and S-N curve approaches are calibrated to simulate crack propagations and planning of inspections and repairs of offshore welds. The method presented is relatively simple and conservative: The transition between protected and corrosive environments is addressed by shifting the S-N curve parameters during the damage calculations, performing crack size recalibration and modifying the crack growth material parameters. These concepts are incorporated in an algorithm, which is applicable to new designs or existing structures where no data from previous inspections is available. An example illustrates the potential of the algorithm.
机译：在本文中，提出了一种新的方法，以优化疲劳核算的检验计划，其中腐蚀或受保护环境改变为腐蚀性环境，表示为过渡环保（TEP）过程。概率裂缝力学和S-N曲线方法被校准，以模拟海上焊缝检查和检测的裂缝和规划。呈现的方法是相对简单和保守的：通过在损伤计算期间转换S-N曲线参数来解决保护和腐蚀性环境之间的过渡，执行裂缝尺寸重新校准并修改裂缝生长材料参数。这些概念以算法包含在算法中，可适用于新的设计或现有结构，其中可以使用先前检查的数据。一个示例说明了算法的潜力。

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