通过弹钢材料提升榴弹威力的原理与方法

This study investigates the principle and method of enhancing the power of natural fragmentation projectiles (warheads) such as grenades through changing the steel material, providing theoretical and technical support for the innovation, development, and application of shell materials. Through theoretical deduction and experimental study, the principle and method are developed-to improve power by adjusting the grain size đ and the scale parameter μ of the steel. Based on this, two new steel materials for projectiles, 40SiMn2X and 50SiMnX, are produced, and a 122 mm grenade projectile structure is selected for tests. Static explosive power tests are conducted using standard shell material 50SiMnVB and two new materials for comparison. The results show that the principle and method of enhancing grenade power by changing steel material are scientific, reasonable, and practical. The new shell steel 40SiMn2X and 50SiMnX exhibit excellent mechanical properties, and have increased the radius of power for light armored vehicles and personnel targets by 31.6% and 12.3%, respectively. Both two materials have achieved progress in applications against both targets, showing important application value.