活性材料與炸藥環(huán)狀復(fù)合內(nèi)爆的準(zhǔn)靜態(tài)壓力計算方法

打開文本圖片集

中圖分類號：0389 國標(biāo)學(xué)科代碼：130.3520 文獻(xiàn)標(biāo)志碼：A

Abstract：Inorder topredictthequasi-staticpressureofinteralexplosioninaclosedenvironmentcomposedofaluminum containing active materialsand explosiverings，this paper summarizes the existingquasi-static presure calculation models for hydrogen，oxygen，and nitrogen explosivesconsideringpostignitioneffects，and proposes anoptimizationmethod forthe quasi-static pressure calculation modeapplicable to intermal explosion of aluminum containing compositecharges.After obtainingthe ideal maximum reaction heat using the Geisstheorem，this methoduses a parameter corrction related to the aluminum containing composite explosive itself.Taking Herzog as anexample，a specific prediction formula is provided. Then，composite charges of active materials and explosives，as wellas aluminum containing explosives，were tested for implosion.Typical overpresurecurves were provided，and the methodforobtainingquasi-static pressre inthetestsand related sources were explained.The experimental data was compared and analyzed with thequasi-static pressure results calculatedbytheestablishedoptimizationmodel，demonstratingthereliabilityofthemodified model.Atthesame time，the intermal explosion resultsoftwo types of explosives were compared，andthe calculation model was extended to general aluminum containing explosives.The acuracyofthe model wasverified using quasi-static pressure data from relevant literature，andthe reasons for errors and possible improvement methods were analyzed.The research results showthat the established quasi-static pressure coection model for post combustionof composite explosives is ingood agreement with experimental and literature data， with an average error of 9 . 1 % and a maximum error of 1 5 . 8 % ； The average error of the calculation results for aluminum containing explosives is 1 2 . 1 % ，with amaximum error of 2 0 . 6 %

Keywords： implosion; quasi static pressure; post combustion effect; active materials; composite charge

內(nèi)爆壓力載荷包含準(zhǔn)靜態(tài)壓力和沖擊波超壓，其中由炸藥內(nèi)爆產(chǎn)生的準(zhǔn)靜態(tài)壓力雖然遠(yuǎn)小于沖擊波的超壓，但由于其加載時間長，能給結(jié)構(gòu)以及內(nèi)部設(shè)施造成持續(xù)的震蕩與沖擊，引起更大程度的毀傷。（剩余14149字）