TY - JOUR
T1 - SHPB加载下PTFE/Al冲击反应的临界条件
AU - Maimaitituersun, Wubuliaisan
AU - Ge, Chao
AU - Tian, Chao
AU - Dong, Yongxiang
N1 - Publisher Copyright:
© 2018, Editorial Staff of EXPLOSION AND SHOCK WAVES. All right reserved.
PY - 2018/9/25
Y1 - 2018/9/25
N2 - Impact-induced initiation criteria of Al particles reinforced PTFE (PTFE/Al) prepared by compression/sintering were studied by split Hopkinson pressure bar (SHPB) and high speed photography in this work. SHPB systems comprising of either steel or aluminum bars were applied to test PTFE/Al samples of different dimensions, in order to study the effect of the impact stress and the loading strain rate on the impact-induced initiation behaviors of PTFE/Al. It shows that the impact-induced initiation process of PTFE/Al mainly includes the deformation, fragmentation and reaction, which is simultaneously related to the impact stress and the loading strain rate. Based on the experimental results, the criteria of impact stress and loading strain rate for the impact-induced initiation of PTFE/Al have been obtained. Moreover, an analytical expression of impact-induced initiation criteria including impact stress and loading strain rate was established and a theoretical curve was predicted for the impact-induced initiation events of PTFE/Al under SHPB tests.
AB - Impact-induced initiation criteria of Al particles reinforced PTFE (PTFE/Al) prepared by compression/sintering were studied by split Hopkinson pressure bar (SHPB) and high speed photography in this work. SHPB systems comprising of either steel or aluminum bars were applied to test PTFE/Al samples of different dimensions, in order to study the effect of the impact stress and the loading strain rate on the impact-induced initiation behaviors of PTFE/Al. It shows that the impact-induced initiation process of PTFE/Al mainly includes the deformation, fragmentation and reaction, which is simultaneously related to the impact stress and the loading strain rate. Based on the experimental results, the criteria of impact stress and loading strain rate for the impact-induced initiation of PTFE/Al have been obtained. Moreover, an analytical expression of impact-induced initiation criteria including impact stress and loading strain rate was established and a theoretical curve was predicted for the impact-induced initiation events of PTFE/Al under SHPB tests.
KW - Impact-induced reaction
KW - PTFE/Al
KW - Reaction criteria
KW - Split Hopkinson pressure bar
UR - http://www.scopus.com/inward/record.url?scp=85055510511&partnerID=8YFLogxK
U2 - 10.11883/bzycj-2017-0075
DO - 10.11883/bzycj-2017-0075
M3 - 文章
AN - SCOPUS:85055510511
SN - 1001-1455
VL - 38
SP - 957
EP - 965
JO - Baozha Yu Chongji/Expolosion and Shock Waves
JF - Baozha Yu Chongji/Expolosion and Shock Waves
IS - 5
ER -