Two numerical tools for geometrical deviation management in composite assemblies: a comparison

Variation management aims to reduce the effects of geometric variations of parts to assemble. Industry is facing a digital revolution in being able to manage geometrical deviation data along the entire lifecycle of a product. This requires the development of new assembly simulation models and tools. New design trends are orienting towards more and more lighter products. They are constituted by thin metal sheets or in composite material. Lighter products in composite materials are always joined through structural adhesive. This work presents different ways to model the adhesive inside a simulation that allows to predict the geometrical variations of an assembly constituted by compliant parts. Three different ways to model adhesive, i.e. glue contact, beam and shell elements, were taken into account. Different thickness values, different component constraints and application points of part variations were also considered. Two lighter assemblies were considered: one constituted by two metal plane sheets that are partially overlapped; the second is formed by three thin sheets in composite material, one plane and two L-shaped. The critical issues connected with the three different solutions to model adhesives in a simulation to manage geometric variations from component to assembly were underlined to guide a possible choice.

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“…In a previous work more node variations were taken into account and the obtained variations were compared (Corrado and Polini 2020).…”

Section: Numerical Modelmentioning

confidence: 99%

Glue modelling in variation management of compliant assemblies: critical issues and possible solutions

Corrado

Polini

2021

International Journal of Computer Integrated Manufacturing

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Challenges in Geometry Assurance for Composites Manufacturing

Toyoda

Wärmefjord

Söderberg

2023

Journal of Computing and Information Science in Engineering

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Composite materials are well known for their high strength-to-weight ratio, but their unique manufacturing process presents some challenges and is a source of geometric variations. To minimize the effects of such variations in the final product is the main goal of geometry assurance. To achieve that, variation simulation tools are used to predict variations and optimize manufacturing parameters, to ensure a robust design. In this paper, the most common variation sources linked to the manufacturing process are discussed. Then, variation simulation tools and features for parts and assemblies are presented. Applicability for composites of existing tools and other studies for metallic parts is compared. Finally, future challenges in variation simulation for composites are discussed.

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Two numerical tools for geometrical deviation management in composite assemblies: a comparison

Cited by 2 publications

References 22 publications

Glue modelling in variation management of compliant assemblies: critical issues and possible solutions

Glue modelling in variation management of compliant assemblies: critical issues and possible solutions

Challenges in Geometry Assurance for Composites Manufacturing

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