Analytical modeling study demonstrates accurate prediction of stiffness and failure modes in sandwich panel blind rivet joints, highlighting improved design methods for structural connections.
This paper focuses on providing a novel analytical model which can be used to predict the stiffness and ultimate load of a blind rivet connection for sandwich panel under tensile pull-out load. The analytical model is based on the component method which is adapted by Eurocode for the design and analysis of structural connections. The present study appears to represent the first attempt to apply this approach to such joints. It can be used for three failure modes of the connection, which are the sandwich panel PIR core fracture, sandwich panel top facing failure and blind rivet failure. The combined deformation of the sandwich panel and the local deformation of the top facing around the blind rivet, which is observed both in the experimental tests and finite element (FE) analysis, is simplified and incorporated in the analytical model. The result of the analytical model is compared with both experimental test result and data shows good agreement.
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Guo et al. (2026) studied this question.
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