Lifting with round sling 1

Sedlyn · Feb 28, 2022

I need to perform a structural and buckling analysis for lifting the composite tank (from shell elements). I would like to ask you about the types/possibilities - how to create/define a lifting analysis using round slings. More precisely, how to ideally define the boundary conditions (or 1D connection/springs elements/compensation elements) in the area of contact of the lifted body with the round slings? Or is it necessary to use contact analysis?

Thank you in advance

robyengIT · Mar 1, 2022

IMHO it depends from the stiffness of the item and from the type of sling (in the picture the sling is metallic - like a big flat chain coated with rubber)
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Sedlyn · Mar 1, 2022

Hi,
Flat (width 8 cm) polyester (or nylon) web slings(without any rubber pads, etc.) are considered.
The lifted composite tank has a diameter of 2 meters and a length of 9 meters and weighs approx. 900 kg.

Illustratively something like this:

XR250 · Mar 1, 2022

Do you really need to perform an analysis? What about testing as an alternative?
900 kg ain't much weight.

Sedlyn · Mar 1, 2022

Unfortunately yes ... because the composite layup of the tank and the maximum level of filtrate inside the vessel during lifting will be determined / optimized based on the analysis.

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Lifting with round sling 1

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