Reply To: shell element with orthotropic materials gives very different results from experimental data

[emirdegirmenli]

Thank you, Peter, for my model longitudinal (L) direction is x-axis, Radial (R) is y-axis and Tangential (T) is z-axis. I calculated shear modulus as your advice and tried these properties on modal analysis but I cant obtain compatible results. Especially when I use shell element, results are far away. Later I use another piece of wood which has different physical properties and made new tests by using FEM and compare them the experimental result. I had to make some adjustment on Ex, Ey and Share modulus xy. And I obtained results which you can see the image by using solid element. Shell element results are still incompatible. what do you think about a solid element can be used as results. Best, Emir

New material properties (I borrowed Poisson ratios from doctoral thesis - In the thesis, it is mentioned that the shell element is the best method for thin plate