Xiaojie Yuan

TL;DR: An integrated framework of exact modeling, isogeometric analysis and optimization for variable-stiffness panels is developed for the global optimum, and the proposed method is able to provide a more efficient optimum design with significant less computational cost compared to other traditional methods.

TL;DR: In this paper, the buckling behavior of composite variable-stiffness panels is investigated based on IGA, whose main feature is that the continuity of fiber angle on the whole panel is guaranteed.

TL;DR: In this paper, the flow field function containing a uniform field and several vortex fields is used to represent the fiber path, and a bi-level optimization framework of variable-stiffness panels considering manufacturing constraints is then proposed.

TL;DR: The method for suppressing artificial buckling modes is proposed to improve the prediction accuracy, the analytical sensitivity is derived to facilitate fiber path optimization, and a new bi-level optimization framework considering manufacturing constraints is established.

TL;DR: In this article, a variable stiffness composite material plate shell structure based on an isogeometric method was proposed to reduce the development period of composite material structures in aerospace structures, and the buckling response of the composite material was analyzed.