CAJ | 학술논문

为了对比研究活性粉末混凝土与普通钢纤维混凝土的抗侵彻能力,结合试验,采用流固耦合法(ALE)对57 mm半穿甲弹侵彻混凝土靶板进行了数值模拟,数值模拟了混凝土在侵彻作用下的变形及断裂特性.计算结果与实验结果对比表明:钢纤维能有效地增加混凝土的韧性和变形能力,增大混凝土对侵彻弹丸能量的消耗,降低弹丸的剩余速度;活性粉末混凝土较普通钢纤维混凝土具有更高的抗侵彻能力,能更好的抑制裂缝发展.
위료대비연구활성분말혼응토여보통강섬유혼응토적항침철능력,결합시험,채용류고우합법(ALE)대57 mm반천갑탄침철혼응토파판진행료수치모의,수치모의료혼응토재침철작용하적변형급단렬특성.계산결과여실험결과대비표명:강섬유능유효지증가혼응토적인성화변형능력,증대혼응토대침철탄환능량적소모,강저탄환적잉여속도;활성분말혼응토교보통강섬유혼응토구유경고적항침철능력,능경호적억제렬봉발전.
In order to study the anti-penetration performance of the reactive powder concrete, combined with the experiment, the arbitrary Lagrangian-Eulerian (ALE) algorithm was used to simulate the armour-piercing projectile (57mm) penetrating the concrete target, the distortion and rupture of concrete were simulated. According to contrast the calculation results with the test results, It indicates that steel fiber can improve toughness and capability of distortion of concrete, so the energy will be more consumed during penetration and the residual velocity will be reduced;it also indicates that the reactive powder concrete holds the stronger capability of anti-penetration and restraining crack than the steel fiber reinforced concrete holds.