I am trying to validate the numerical results of a shear wall using multilayer shell element model in Sap2000 with experimental results. But the numerical model shows relatively high stiffness in comparison to the experimental test results. Can anyone advice me how to fix this problem? . The material properties are fy=481MPa(web), fy=440 MPa(boundary), and fc'=23.7MPa.Thank you very much.
Dear you can see the following articles
https://www.sciencedirect.com/science/article/pii/S0141029609004428
https://asmedigitalcollection.asme.org/pressurevesseltech/article-abstract/111/2/88/433831
https://www.researchgate.net/profile/Thanh_Quang_Khai_Lam2/publication/334372488_Effect_of_each_shell_thickness_on_deformation_stress_and_the_ability_for_causing_the_cracks_in_the_multilayer_doubly_curved_shell_roof/links/5d25ecab458515c11c224437/Effect-of-each-shell-thickness-on-deformation-stress-and-the-ability-for-causing-the-cracks-in-the-multilayer-doubly-curved-shell-roof.pdf
Dear Nilar,
Have you defined the nonlinearity of materials? Have you also considered a plastic hinges?
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