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I suppose you mean that is a basic theory that a boundary pinned condition is less stiff than a clamped condition, this is not the problem. My problem is depending on the type of welding you have the stiffness of the junction is different and this cause a different dynamic response of the...

Do you know bibliography or paper talking about this problem?

Thanks for your answers. As a first step I joined the plates with the cantlivers on their welding positions by common node, so coupling the six dof. After that I tried coupling just the translations and not the rotations, and the results on the local modes of the plates were better ( lower in...

Thanks for your answer. You are right, I knew that. In fact I have used shell181 elements, and also I have tested hexas elements ( not tetrahedal) but the results remain similar. Regards,

Thanks for your answer. I have tried a finer mesh and the results were equivalent.

Hello, This is my first question in the forum, sorry for my english. I am involved in some modal correlation between test and numerical results with ansys. As a first step I have simulated weldings as a common nodes between the welded plates, and I have concluded that generally the local...

Hello, This is my first question in the forum, sorry for my english. I am involved in some modal correlation between test and numerical results with ansys. As a first step I have simulated weldings as a common nodes between the welded plates, and I have concluded that generally the local...