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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Development and validation of a leak before break criterion for cylindrical pressure vessels
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Development and validation of a leak before break criterion for cylindrical pressure vessels

机译:圆柱形压力容器破断准则前泄漏的发展和验证

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摘要

Leak before break is a fail-safe design concept for application in pressure vessels and piping of power and process plants. A quantitative maximum allowable flaw size is required to establish to set acceptance/rejection limit to predict whether the specific cracked pipe will leak or break. A new modification and its boundary based on Modified Two Parameter Fracture Criterion is capable of separating the leak and break cases distinctly in order to predict the behavior of cracked cylinders, pipelines and pressure vessels in advance for taking necessary precautions by the plant operator and also very much handy for the designers. For the given operating pressure under the observed crack dimensions, whether the crack will leak or break can be assessed from the boundary generated for the material concerned using Modified Two Parameter fracture assessment procedure.
机译:破裂前泄漏是一种故障安全的设计概念,适用于电力和过程工厂的压力容器和管道。需要建立定量的最大允许缺陷尺寸以设置接受/拒绝极限,以预测特定破裂的管道是否会泄漏或破裂。基于修改后的二参数断裂准则的新修改及其边界能够区分泄漏和破损情况,以便提前预测破裂的钢瓶,管道和压力容器的行为,以便工厂操作人员采取必要的预防措施,并且非常对于设计师而言非常方便。对于在观察到的裂纹尺寸下的给定工作压力,可以使用修改后的两个参数断裂评估程序,根据为相关材料生成的边界来评估裂纹是否泄漏或破裂。

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