... bolted ageing mechanical properties safety and reliability pre-applied threadlocker temperature humidity Abstract Pre-applied threadlockers are characterized by several favorable features in terms of handling of the fastener and simplification of the assembly process. Very often...

... Abstract This paper uses finite element models of an API flange to consider the suitability of the maximum bolt preload permitted by API 17D, 67% of the bolt’s material yield stress [1]. The flange was reviewed under ambient temperature, and under a large thermal gradient. Pressure and external...

... and summarize the primary changes that appear in the 2022 edition of ASME PCC-1, for the benefit of those bolted joint practitioners who will be using the document. Finally, the paper will identify some elements that are in the course of preparation that may be issued before the next edition in the form...

... Technology, Austin, TX ABSTRACT ASME PCC-1 (2010) introduced 5 different alternative bolting patterns in contrast to the Legacy Pattern that is commonly known as the Star Pattern . For the past 15 years, research has shown that these Alternative Patterns issued by PCC-1 are more efficient than the Star...

... available. Based on a common bolt and plate configuration, the study involves different pre-applied threadlockers in terms of strength grade, among several hygrothermal conditions, representative of frequent storage/shipping conditions. The experimental data have been analyzed by means of the ANOVA tools...

... uses slots instead of holes for the bolts. This design is common for certain types of equipment in use today, such as large slurry and water pumps. In this study, finite element analysis is used to model a finger flange bolted to a standard ASME B16.5 weldneck flange and understand the areas...

... Abstract The present paper investigates the influence of several design parameters on the frictional response of a bolted joint, involving screws from strength grades 8.8 to 12.9, with black oxidization coating or zinc coatings. The experimentation deals with different underhead and nut...

... Abstract Bolted flanges are widely used to connect pipelines in many industries. To assure sealability of a flange, generation of proper preloads in the bolts during the assembly process is critical. However, in the existing standard practice, identical torques are typically applied to all...

... 12 07 2010 Performance of a bolted flange joint is characterized mainly by its ‘strength’ and ‘sealing capability’. The weakest part of a high temperature and pressure envelope is the gasket in bolted flange joints, as these are prone to leakage. It causes loss of productivity...

... 21 07 2008 The joint strength of a bolted flanged pipe joint depends upon its proper assembly using a suitable level pre-loading leading to a static behavioral mode whilst in operation. This is opposed to a dynamic behavioral mode observed in the gasketed joint, where there is relative...