民机复合材料结构设计许用值及其确定方法

设计许用值是复合材料结构设计和验证的关键基础,目前国内相关研究仍处于起步阶段。本文介绍了设计许用值的概念,详细解读了设计许用值的适航要求,并根据设计标准给出了合适的试验矩阵以及相应的试验方法。最后应用某民机壁板实例验证了此方法的可行性,为进一步研究复合材料设计许用值提供参考。

Design allowableness and evaluation methods of civil aircraft composite structure

The design allowableness is the key basis for the design and verification of composite structures. At present, the relevant domestic research is still in its infancy. The concept of design allowableness is introduced, the airworthiness requirements of design allowableness are explained, and a suitable test matrix and corresponding test method are given according to the design standards. Finally, the feasibility of this method is verified by the example of civil aircraft wall. Such method can be used to provide a reference to the further research of composite design allowableness.