第1部分:法兰旋转和垫片宽度对螺栓法兰接头泄漏行为的影响:法兰旋转对螺栓法兰接头泄漏行为的影响当前的ASME规范法兰设计通过在螺栓载荷计算中引入有效垫片宽度的概念，而非全垫片接触宽度来解决法兰旋转问题。虽然它被广泛接受并被依赖，但它没有理论或基本依据，最重要的是，它还没有得到实验验证。此外，根据在刚性压板上进行的ROTT试验获得的新垫片常数制定的新设计规则，需要重新考虑和验证有效垫片宽度概念的有效性。 本工作的主要目的是研究法兰旋转引起的非均匀垫片接触应力对垫片材料泄漏行为的影响。将进行实验和数值研究来量化这种影响。将特别关注有效宽度概念的适用性及其随法兰柔性和荷载的变化。第2部分:法兰旋转和垫圈宽度对螺栓法兰接头泄漏行为的影响:垫圈宽度和垫圈直径对密封性能的影响，垫片常数和排放量探索性实验评估本测试计划是一项拟议的更大规模实验研究的探索阶段，该研究旨在探讨两个垫片尺寸参数宽度和直径对室温密封性能、垫片常数和现代垫片材料排放量的影响。 拟议的项目测试方案包括不同宽度（从0.5英寸到1.0英寸）的完整ROTT测试矩阵以及由多种材料制成的垫圈的直径，每个垫圈类型仅进行一次测试。探索性测试的目的是确认拟定测试方案参数的选择。重要的是验证从试验方案中获得的泄漏数据将允许用户明确量化泄漏与尺寸参数宽度/直径之间的关系。在修订的项目建议书中定义了探索性试验计划，该计划包括:对同一材料的3种不同宽度进行1次ROTT试验（按照委员会的指示），共进行三次试验。 该试验程序经过修改，包括:对同一材料的2种不同宽度进行2次重复ROTT试验，共4次试验。测试计划中的这一变化是为了从重复测试中收集数据，并确定可能获得的结果的一致性水平，尤其是因为项目测试计划建议每个垫圈类型只进行一次测试。第3部分:法兰旋转和垫片宽度对螺栓法兰接头泄漏行为的影响:垫片宽度对密封性能的影响垫片常数和排放这项更大的实验研究是对两个垫片尺寸参数（即宽度和直径对室温密封性能的影响）的探索阶段的后续工作，垫片常数和现代垫片材料的排放。 拟议的项目测试方案包括不同宽度（从0.5英寸到1.0英寸）的ROTT（室温密封性）测试的完整矩阵以及由多种材料制成的垫圈直径，每个垫圈宽度进行两次测试。这些试验的目的是明确量化泄漏与垫片宽度之间的关系。

Part 1: Effect of Flange Rotation and Gasket Width on Leakage Behavior of Bolted Flanged Joints: Effect of Flange Rotation on Leakage Behavior of Bolted Flanged JointsThe current ASME code flange design addresses flange rotation by introducing the concept of an effective gasket width in the calculation of the bolt load instead of the full gasket contact width. Although it is accepted widely and is relied on, it has no theoretical or fundamental basis and above all it has not been verified experimentally. In addition, with the new design rules based on the new gasket constants obtained from ROTT tests conducted on rigid platens, there is a need to reconsider and verify the validity of the effective gasket width concept.The main objective of the present work is to investigate the effect of the non-uniform gasket contact stress due to flange rotation on the leakage behavior of sheet gasket materials. Both experimental and numerical investigations will be carried out to quantify this effect. Particular attention will be focused on the applicability of the effective width concept and its variation with flange flexibility and load.Part 2: Effect of Flange Rotation and Gasket Width on Leakage Behavior of Bolted Flanged Joints: Effect of Gasket Width & Gasket Diameter on Tightness Performance, Gasket Constants & Emissions-An Exploratory Experimental EvaluationThis test program is the exploratory phase of a proposed larger experimental study of the effect of two gasket dimensional parameters—width and diameter—on room temperature tightness performance, gasket constants and emissions of modern gasket materials. The proposed project test scheme consists of a full matrix of ROTT tests on different widths (ranging from 0.5 to 1.0 in.) and diameters of gaskets made from a broad range of materials, with only one test per gasket style.The purpose of the exploratory tests is to confirm the choice of the parameters of the proposed test scheme. It is important to verify that the leakage data obtained from the test scheme will allow the user to clearly quantify the relationship between LEAKAGE and the dimensional parameters WIDTH/DIAMETER.The exploratory test program was defined in a revised project proposal that consisted of:1 ROTT test on 3 different widths of the same material (as directed by the committee), for a total of three tests.This test program was modified to include:2 repeated ROTT tests on 2 different widths of the same material, for a total of 4 tests.This change in the test program was implemented to collect data from repeated tests and to determine the level of consistency in the results that could be obtained, especially since the project test scheme proposes to conduct only one test per gasket style.Part 3: Effect of Flange Rotation and Gasket Width on Leakage Behavior of Bolted Flanged Joints: Effect of Gasket Width on Tightness Performance Gasket Constants & EmissionsThis larger experimental study is a follow-up work to an exploratory phase already conducted on the effect of two gasket dimensional parameters which are the width and the diameter on the room temperature tightness performance, gasket constants and emissions of modern gasket materials. The proposed project test scheme consists of a full matrix of ROTT (Room Temperature Tightness) tests on different widths (ranging from 0.5 to 1.0 in.) and diameters of gaskets made from a broad range of materials, with two tests per gasket width. The purpose of these tests is to clearly quantify the relationship between leakage and the gasket width.