2026-03-13T13:46:12Z https://hiroshima.repo.nii.ac.jp/oai

oai:hiroshima.repo.nii.ac.jp:02008974 2025-02-22T04:41:23Z 1730444907710

Buckling analysis of stiffened plate structures by an improved meshfree flat shell formulation Sadamoto, Shota Tanaka, Satoyuki Taniguchi, Kunihiko Özdemir, Mehmet Bui, Tinh-Quoc Murakami, Chikahisa Yanagihara, Daisuke Meshfree Reproducing kernel Stiffened Plate Buckling An efficient Galerkin meshfree flat shell formulation is presented for the analysis of buckling behaviors of stiffened plate structures. Both plate bending and membrane deformations are approximated by the reproducing kernel particle method (RKPM). The governing equation is transformed into a weak form, and it is discretized by the scattered nodes. The stiffness matrix is numerically integrated with the nodal integration technique, i.e., the stabilized conforming nodal integration (SCNI). The RKPM and SCNI based flat shell modeling approach can address the shear locking problem. Additionally, the present discretization is further improved by involving a drilling rotation component, which is to effectively model the stiffeners. There are six degrees of freedom per node. A singular kernel is also introduced into a set of the interpolants to model the web/flange connection, as well as the imposition of the essential boundary conditions. A generalized eigenvalue problem is analyzed for evaluating buckling loads/modes of the stiffened plate structures. The accuracy of the numerical results and the effectiveness of the proposed method are examined through several numerical examples. Tinh Quoc Bui gratefully acknowledges the support from Grant-in-Aid for Scientific Research - JSPS. http://purl.org/coar/resource_type/c_6501 Elsevier 2017-05-06 AM 303 Thin-Walled Structures 117 313 303 https://hiroshima.repo.nii.ac.jp/records/2008974 eng https://doi.org/10.1016/j.tws.2017.04.012 open access © <2017>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ This is not the published version. Please cite only the published version. この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。