本文關(guān)鍵詞：含鋁炸藥在混凝土介質(zhì)中爆炸響應(yīng)的FE-SPH算法模擬研究　出處：《振動(dòng)與沖擊》2016年01期 　論文類型：期刊論文

  更多相關(guān)文章： 含鋁炸藥 爆炸 FE-SPH耦合方法 數(shù)值模擬

【摘要】：采用自編程實(shí)現(xiàn)的二維軸對(duì)稱FE-SPH耦合算法對(duì)含鋁炸藥在混凝土介質(zhì)中的爆炸響應(yīng)過程進(jìn)行模擬研究。含鋁炸藥的爆炸過程采用JWL方程結(jié)合Miller反應(yīng)率方程來描述,同時(shí)采用粒子接觸算法避免爆炸響應(yīng)后轉(zhuǎn)化的SPH粒子點(diǎn)間形成堆積及非物理穿透。對(duì)不同含鋁量的高能炸藥在不同埋深下爆炸響應(yīng)過程進(jìn)行模擬,通過對(duì)混凝土的毀傷及預(yù)設(shè)動(dòng)能桿的運(yùn)動(dòng)分析,結(jié)果表明,所實(shí)現(xiàn)的FE-SPH耦合算法能夠穩(wěn)定再現(xiàn)含鋁炸藥爆炸對(duì)混凝土介質(zhì)的破壞響應(yīng)過程,并且響應(yīng)的特征參量也與實(shí)驗(yàn)數(shù)據(jù)吻合。
[Abstract]:The two dimensional axisymmetric FE-SPH coupling algorithm is used to simulate the explosion response of aluminized explosives in the concrete medium. The explosive process of aluminized explosive is described by JWL equation and Miller reaction rate equation. Meanwhile, particle contact algorithm is adopted to avoid accumulation and non physical penetration between transformed SPH particles after explosion. High explosives with different aluminum contents in different depth under the blast response process was simulated by the damage of concrete and preset kinetic rod analysis results show that the FE-SPH coupling algorithm can stabilize the reproduction of aluminized explosive of the concrete damage response process, characteristic parameters and the response of the agreement with the experimental data.
【作者單位】： 湖南大學(xué)機(jī)械與運(yùn)載工程學(xué)院特種裝備先進(jìn)技術(shù)與仿真教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金(11102065) 高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金新教師類(20110161120038)
【分類號(hào)】：TQ560.1;O38
【正文快照】： 含鋁炸藥由于具有較高的做功效能,被廣泛地用于各種兵器裝備的裝填彈藥[1]。高能炸藥在混凝土介質(zhì)中的爆炸效應(yīng)一直以來都是毀傷與防護(hù)領(lǐng)域的熱點(diǎn),由于含鋁炸藥在水中兵器中所展現(xiàn)出來的優(yōu)良特性[2],使其在混凝土介質(zhì)中爆炸毀傷的應(yīng)用前景受到關(guān)注,但是對(duì)于含鋁炸藥在混凝土介，

本文編號(hào)：1338990