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Static simulation fails while real product succeeds

Question asked by B. Bijl on Dec 5, 2018
Latest reply on Dec 6, 2018 by Bill McEachern

Dear Forum,

 

I'm running into a problem using solidworks simulation. To be very clear I'm not a professional using static simulations. I know the basics.

 

A coupler plate for some machinery we have here needs to lift 2.5 Tons. To get a proper certificate it needs to lift up to 200%, meaning 5 Tons.

It did this without any problems or deformations in the product. But when I try to simulate this in Sw, it shows that it should fail. The biggest stress areas Sw shows are logical though.

 

Attached is the product.

Below some screenshots:

 

Coupler static.jpgCoupler static stress.jpg

 

The hoist ears are welded on the bend plate. Can this be the issue?

 

I would be very happy to get some advice from you guys on my problem.

 

Cheers,

Boris

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