Mesh Deflection.
Mesh Deflection.
(OP)
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 expected 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.
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 expected 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.






RE: Mesh Deflection.
Spacegass does non linear analysis. I will just model it as a grillage structure.
Apply a unit load and use that as my equivalent spring constant hence and then calculate my deflection energy.
RE: Mesh Deflection.
Your 5x2 will work one way-I mean most of the activity will be along the short(2m) direction
Thus you can use a strip 2m long, and solve manually
That will give you a very good approximation to whatever you are looking for.
RE: Mesh Deflection.
The span is 5m.
I guess I could just do a linear analysis and treat it as 1 way action for the 5 m and use strip methods.