Inverse Solution for Bolt Preload Using Surface Deformation

Autor:	A. Zaki, S. A. Nassar, S. Kruk, M. Shillor
Rok vydání:	2017
Předmět:	020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Mechanical Engineering 0103 physical sciences 02 engineering and technology Safety Risk Reliability and Quality 01 natural sciences 010305 fluids & plasmas
Zdroj:	Journal of Pressure Vessel Technology. 139
ISSN:	1528-8978 0094-9930
DOI:	10.1115/1.4035695
Popis:	In this paper, an inverse biharmonic axisymmetric elasticity problem is solved by invoking measured out-of-plane surface deformation values at discrete locations around a preloaded bolt head, in order to calculate the underhead contact stress and joint clamp load that would have caused that out-of-plane surface deformation. Solution of this type of inverse problem promises to improve the automation process of bolted joint system assembly, especially in critical and safety-related applications. For example, a real-time optically measured joint surface deformation can be utilized for automating process control of bolted joint assembly in a reliable fashion. This would be a significant reliability improvement as compared to the commonly used method in mass production using torque-only control method in which there is wide scatter in the torque–tension correlation due to the normal scatter in frictional variables. Finite element analysis (FEA) method is used to validate the inverse problem solution provided in this paper.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1e3e04da470fee66f3a4c2e1e15f796e https://doi.org/10.1115/1.4035695 Zobrazit plný text záznamu