Buckling of thin shells is generally sensitive to geometric imperfections, so precise surveys of initial geometric imperfections are essential for high quality shell buckling experiments.

• 摘要薄壳结构的屈曲通常对初始缺陷十分敏感，因此对几何初始缺陷的精确测量是高质量的壳体屈曲试验的必要环节。