Theoreticalcalculationonshockcompressioncharacteristics ofmultifunctionalenergeticstructuralmaterials
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摘要: 基于混合物冷能叠加原理,由各组分Hugoniot数据计算了密实材料的冲击压缩特性。再从等压 路径出发,结合Wu-Jing模型由热力学关系得到了具有一定孔隙率多功能含能结构材料的冲击压缩特性计算 方法。以W/Cu、Al/Ni、Ni/Ti和Al/Fe2O3/epoxy等典型颗粒金属材料及含能金属材料为例,计算了其冲击 压缩过程中相关Hugoniot参数。计算结果与已有实验结果吻合较好,多功能含能结构材料冲击压缩特性受 材料孔隙率、材料配比等影响明显。Abstract: Basedonthecoldenergymixturetheory,theequationsofstateweregivenforthecompactionmultifunctionalenergeticstructuralmaterials( MESMs)undershockcompressionbyusingthe Hugoniotrelationsofthecomponents.AndcombiningtheabovemethodandtheWu-Jingmodel,the equationsofstatewereproposedfortheporousMESMsundershockcompressionalongtheisobaric paths.Toverifytheaccuracyofthecalculations,theHugoniotrelationswerecalculatedforthetypicalmetalparticlemixture( W/Cu)andthetypicalMESMs(Al/Ni,Ni/TiandAl/Fe2O3/epoxy),respectively. Thetheoreticalcalculationsagreewellwiththecorrespondingexperimentalresults.The shockcompressioncharacteristicsoftheMESMscanbeevidentlyinfluencedbytheirporositiesand theproportionsofthecomponentsinthem.
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