Assessment of Penetration Performance and Optimum Design of a Bore‐Center Annular Shaped Charge

Xu Wenlong; Wang Cheng; Yuan Jianming; Zhang Zhifan; Deng Tao

摘要

Abstract > To improve penetration performance of the classical conical shaped charge, a bore‐center annular shaped charge (BCASC) was designed and effects of key parameters on its formation and penetration into concrete targets were investigated numerically and experimentally. As a result, suitable parameters of the BCASC, which comprehensive consideration of penetration hole diameter and depth into concrete targets, were provided. Subsequently, tests of the optimized BCASC penetration into single‐layer and double‐layer concrete targets were performed. The results indicate that, for all the cases, the diameters of the rear crater are larger than that of the front ones. The influence of factors h (standoff distance) and f (the radial distance between the center of the inner and outer liner wall) on the diameters of the front crater, the penetrating tunnel, and the rear crater are greater than that of other factors. The diameters of the front crater and the penetrating tunnel decrease with the increase of factors h and f . The penetration depth of optimized BCASC into concrete exceeds 3.0?times of the charge diameter ( D ). Hole diameters of penetrating tunnels are larger than the charge diameter. For the single‐layer concrete target, the hole diameter of the penetrating tunnel is 2.26 D . And, for the double‐layer concrete target, the hole diameters of the first and second layers are 1.41 D and 1.33 D , respectively. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > 为了提高经典圆锥形电荷的穿透性能，设计了孔中心环形电荷（Bcasc），并在数值和实验上研究了对其形成和渗透到混凝土靶标的关键参数的影响。结果，提供了BCASC的合适参数，其综合考虑穿透孔直径和深度进入混凝土靶标的。随后，进行了优化的Bcasc渗透到单层和双层混凝土靶标的测试。结果表明，对于所有情况，后喷枪的直径大于前部的直径。因素的影响 h </ i> （站点距离）和 f </ i> （内衬壁的中心之间的径向距离）在前陨石坑，穿透隧道和后喷枪的直径上大于其他因素的直径。前火山口的直径随着因素的增加而降低了渗透隧道 h </ i> 和 f </ i> 。优化的BCASC中的渗透深度为混凝土超过3.0倍的电荷直径（ d </ i> ）。穿透隧道的孔径大于电荷直径。对于单层混凝土目标，穿透隧道的孔径为2.26 d </ i> 。并且，对于双层混凝土靶，第一层和第二层的孔径为1.41 d </ i> 和1.33 d </ i> ，分别。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-29946/'>《Propellants, Explosives, Pyrotechnics》</a> <b style="margin: 0 2px;">|</b><span>2019年第12期</span><b style="margin: 0 2px;">|</b><span>共12页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Xu Wenlong&option=202" target="_blank" rel="nofollow">Xu Wenlong;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wang Cheng&option=202" target="_blank" rel="nofollow">Wang Cheng;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yuan Jianming&option=202" target="_blank" rel="nofollow">Yuan Jianming;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zhang Zhifan&option=202" target="_blank" rel="nofollow">Zhang Zhifan;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Deng Tao&option=202" target="_blank" rel="nofollow">Deng Tao;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>State Key Lab of Explosion Science and TechnologyBeijing Institute of TechnologyBeijing 100081 China;</p> <p>State Key Lab of Explosion Science and TechnologyBeijing Institute of TechnologyBeijing 100081 China;</p> <p>Nanyang Technological University50 Nanyang Drive 637553 Singapore;</p> <p>State Key Lab of Explosion Science and TechnologyBeijing Institute of TechnologyBeijing 100081 China;</p> <p>State Key Lab of Explosion Science and TechnologyBeijing Institute of TechnologyBeijing 100081 China;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1837.html" title="爆炸物工业、火柴工业">爆炸物工业、火柴工业;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Annular shaped charge&option=203" rel="nofollow">Annular shaped charge;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Formation&option=203" rel="nofollow">Formation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Penetration&option=203" rel="nofollow">Penetration;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Numerical simulation&option=203" rel="nofollow">Numerical simulation;</a> </p> <div class="translation"> 机译：环形电荷;形成;渗透;数值模拟; </div> </li> </ul> </div> </div> <div class="literature cardcommon" id="literaturereference" style="display:none"> <div class="similarity "> <h3 class="all_title" id="enpatent111">引文网络</h3> <div class="referencetab clearfix"> <ul id="referencedaohang"> <li dataid="referenceul">参考文献</li> <li dataid="citationul">引证文献</li> <li dataid="commonreferenceul">共引文献</li> <li dataid="commoncitationul">同被引文献</li> <li dataid="tworeferenceul">二级参考文献</li> <li dataid="twocitationul">二级引证文献</li> </ul> </div> <div class="reference_details" id="referenceList"> <ul id="referenceul"></ul> <ul id="citationul"></ul> <ul id="commonreferenceul"></ul> <ul id="commoncitationul"></ul> <ul id="tworeferenceul"></ul> <ul id="twocitationul"></ul> </div> </div> </div> <div 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