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Mesh/Plate Deflection!

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BenderLT

Structural
Joined
Mar 5, 2009
Messages
7
Location
AU
Hello everyone.

I have a thin 5 mm mesh made up of hard drawn low carbon wire.

To get a rough idea of the stiffness, the mesh similar to the wire used on old school shopping trolley’s.

I have a 5 x 2 m rectangular mesh structure which in worst case will be subject to a fairly high impact point load. The structure is welded too a 89mm CHS section either side.

I am looking for a way to approximate the deflection of the structure to calculate the resultant force and stress.

I am assuming an inelastic collision, hence the deflection energy of the mesh will be needed to bring the object to a stop.

I was wondering if I could use large deflection thin plate formulas to approximate the mesh as a plate element to calculate the deflection energy but though it may be too complex.

Anyone worked on thin plate, membrane or mesh structures that would know a suitible reference or have any advice.

Cheers.
 
Don't worry I think I have a solution.

Spacegass does non linear analysis. I will just model it as a grillage structure.

Apply a unit load and use that as an equivalent spring constant.
 
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