Projectiles Impact Assessment of Aircraft Wing Structures with Real Dynamic Load

11th International Conference on Damage Assessment of Structures

物理学;材料科学

Han, Lu^1 ; Han, Qing^1 ; Wang, Changlin^1

Department of Aircraft Design Engineering, Northwestern Polytechnical University, P. O. BOX 120, Xi'an, Shaanxi

710072, China^1

关键词: Damage mechanism;    Dynamic loading effects;    Impact assessments;    Load situation;    Structural damages;    Structural finite element methods;    Wing aerodynamics;    Wing structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/628/1/012080/pdf
DOI  :  10.1088/1742-6596/628/1/012080

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper presents an analysis to achieve the impact damage of the wing structure under real dynamic load. MPCCI tools are utilized to convert wing aerodynamic load into structural Finite Element Method (FEM) node load. The ANSYS/LS-DYNA code is also used to simulate the dynamic loading effects of the wing structure hit by several projectiles, including both active damage mechanism and common damage mechanism. In addition, structural node force on the leading edge and the midline is compared to the aerodynamic load separately. Furthermore, the statistical analysis of the penetrating size and the stress concentration around the damage holes indicates that under the same load situation, the structural damage efficiency of active damage mechanism is significantly higher than the one of common damage mechanism.