The structural impact similarity laws have corrected the distortion caused by the strain-rate effect and the material property differences mostly by changing the impact velocity. However, in many practical environments, the velocity of the projectile cannot be used as an initial condition for modification. This paper develops a new similarity framework that takes into account the material property differences in the penetration problem and corrects the similarity distortion between scaled models and prototypes by changing the plate thickness. The method is preliminarily proved feasible by an analytical model of dimensionless critical impact energy under penetration. In addition, a series of numerical simulations of blunt projectiles striking steel plates are carried out. The results show that differences in similar distortions between different scaled models with different materials can all be compensated by a dimensionless number based on the thickness of the target plate.


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    Title :

    A new similarity law for penetration of steel plates by blunt projectiles


    Contributors:
    Wang, Yinan (author) / Wang, Zhi (author) / Zhang, Wenqi (author) / Yang, Nana (author) / Yao, Xiongliang (author)

    Published in:

    Publication date :

    2024-02-01


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Modeling and Simulation of Perforation of Steel Plates by Blunt Projectiles

    Voyiadjis, George / Abu Al-Rub, Rashid / Palazotto, Anthony | AIAA | 2006


    AIAA-2006-2089 Modeling and Simulation of Perforation of Steel Plates by Blunt Projectiles

    Voyiadjis, G. / Al-Rub, R. A. / Palazotto, A. et al. | British Library Conference Proceedings | 2006