郑州轻工业学院学报（自然科学版）
鄭州輕工業學院學報（自然科學版）
정주경공업학원학보（자연과학판）
JOURNAL OF ZHENGZHOU INSTITUTE OF LIGHT INDUSTRY(NATURAL SCIENCE)
2014年
2期
99-101
,共3页
圆柱壳屈曲%数值模拟%整体失稳%轴向冲击
圓柱殼屈麯%數值模擬%整體失穩%軸嚮遲擊
원주각굴곡%수치모의%정체실은%축향충격
cylindrical shell buckling%computer simulation%whole collapse%axial impact
使用有限元程序LS-DYNA对不同加载情况圆柱壳的动力响应进行数值模拟，得到圆柱壳未发生局部屈曲点处的应变。数值模拟结果与实验符合较好。数值模拟所得到的未发生局部屈曲处应变表明：当壳发生局部屈曲时，整个壳的未屈曲部位处于塑性状态，随后壳会发生弹性卸载，并发生弹性振动，直至静止。
使用有限元程序LS-DYNA對不同加載情況圓柱殼的動力響應進行數值模擬，得到圓柱殼未髮生跼部屈麯點處的應變。數值模擬結果與實驗符閤較好。數值模擬所得到的未髮生跼部屈麯處應變錶明：噹殼髮生跼部屈麯時，整箇殼的未屈麯部位處于塑性狀態，隨後殼會髮生彈性卸載，併髮生彈性振動，直至靜止。
사용유한원정서LS-DYNA대불동가재정황원주각적동력향응진행수치모의，득도원주각미발생국부굴곡점처적응변。수치모의결과여실험부합교호。수치모의소득도적미발생국부굴곡처응변표명：당각발생국부굴곡시，정개각적미굴곡부위처우소성상태，수후각회발생탄성사재，병발생탄성진동，직지정지。
The computer simulation on dynamic buckling and whole collapse of cylindrical shell under dif-ferent axial impact was carried out using LS-DYNA.The numerical results and the experimental results showed good agreement.The strains of the points which were located in the middle of the local buckling cylindrical shells were obtained.The strains showed that the local buckling cylindrical shells were in the plastic stage and generated elastic vibration subsequently until standstill.
