The critical buckling load for a FGM plate under a linearly distributed in-plane load is determined. Material properties of the plate vary exponentially across its thickness. The Ritz method is used to solve the equations formed according to the 3D linear elasticity theory. The effects of different material compositions and dimensions of the plate on its critical buckling load and mode shapes are investigated for three different boundary conditions.

中文翻译：

---

平面内载荷线性变化下FGM板的屈曲特性

确定了线性分布的平面内载荷下FGM板的临界屈曲载荷。板的材料特性在其整个厚度上呈指数变化。使用Ritz方法求解根据3D线性弹性理论形成的方程。针对三种不同的边界条件，研究了不同材料成分和尺寸的钢板对其临界屈曲载荷和模态形状的影响。