An efficient model for laminated composite thin-walled beams of open or closed cross-section and with or without in-filled materials

Abstract The paper presents a new modeling technique for accurately predicting the complex behavior of thin-walled open and closed section beams made fiber-reinforced laminated composite materials. is significantly computational-efficient compared to detailed finite element modeling. In this technique, complete 3D stress analysis problem consisting all effects their couplings systematically decomposed into 2D applicable beam section, 1D along length. capability not only suitable but also with solid, thick-walled sections as well thin/thick-walled in-filled To analyze any arbitrary cross-sectional geometry, (FE) model used solving sectional problem, while global load response solved by FE utilizing stiffness parameters obtained from model. proposed validated using experimental numerical results, which show excellent performance New results range are developed presented method against