Shock imprint and rolling direction influence upon the breaking tenacity for 2P armor steel

4th ModTech International Conference - Modern Technologies in Industrial Engineering

Zichil, V.^1 ; Coseru, A.^1 ; Schnakovszky, C.^1 ; Herghelegiu, E.^1 ; Radu, C.^1

Vasile Alecsandri University of Bacu, Engineering Faculty, 157 Mreti str., Bacu, Romania^1

关键词: Armor plate;    Armor steel;    Breaking tenacities;    Critical factors;    Foreign bodies;    Rolling direction;    Stress intensity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/145/3/032011/pdf
DOI  :  10.1088/1757-899X/145/3/032011

来源: IOP

【 摘 要 】

The state of art in present literature shows that the breaking tenacity of a material is influenced by the integrity of the structure. Since armors used in aviation and to protect military vehicles are frequently impact loaded, through the contact between armor sheet and projectiles, or other foreign bodies, the authors have proposed to study the dependence between the breaking tenacity of 2P armor steel depending on the direction of the rolling of the armor plate, of the geometry (spherical imprint, pyramidal and linear imprint) and the depth of the deformation that results after impact. Tests were conducted upon CT (ASTM E- 399) specimen type, using the critical factor of stress intensity during the state of planar strain.