【摘要】：為了解貧氧推進(jìn)劑在沖擊載荷下的力學(xué)響應(yīng),實(shí)施了貧氧推進(jìn)劑的SHPB實(shí)驗(yàn),獲得了推進(jìn)劑相應(yīng)的動(dòng)態(tài)壓縮力學(xué)特性。實(shí)驗(yàn)結(jié)果表明,貧氧推進(jìn)劑在高應(yīng)變率下具有顯著的應(yīng)變率敏感性,推進(jìn)劑的應(yīng)力隨應(yīng)變率增加而不斷上升;推進(jìn)劑的最大應(yīng)力與應(yīng)變率對(duì)數(shù)存在線性關(guān)系;從應(yīng)力-應(yīng)變曲線推斷,該推進(jìn)劑在高應(yīng)變率變形時(shí)表現(xiàn)出粘彈性和超彈性相結(jié)合的性質(zhì)。實(shí)驗(yàn)研究可作為研究貧氧推進(jìn)劑藥柱在點(diǎn)火階段結(jié)構(gòu)完整性的重要依據(jù)。
[Abstract]:In order to understand the mechanical response of oxygen-poor propellants under impact loading, the SHPB experiments of oxygen-poor propellants were carried out, and the corresponding dynamic compression mechanical properties of the propellant were obtained. The experimental results show that the strain rate sensitivity of oxygen-poor propellants is remarkable at high strain rate, and the stress of the propellant increases with the increase of strain rate, and there is a linear relationship between the maximum stress and the logarithm of strain rate. It is inferred from the stress-strain curve that the propellant exhibits a combination of viscoelasticity and hyperelasticity at high strain rate deformation. The experimental study can be used as an important basis for studying the structural integrity of oxygen-poor propellants in the ignition stage.
【作者單位】： 南京理工大學(xué)機(jī)械工程學(xué)院;
【分類號(hào)】：V512.3

【相似文獻(xiàn)】

相關(guān)會(huì)議論文 前2條

1 王克強(qiáng);莫紅軍;;貧氧推進(jìn)劑的研究發(fā)展方向[A];中國宇航學(xué)會(huì)固體火箭推進(jìn)第22屆年會(huì)論文集（推進(jìn)劑分冊(cè)）[C];2005年

2 張勁民;倪鳳翔;蔡如琳;趙志剛;;貧氧推進(jìn)劑水下聲發(fā)射燃速測(cè)試技術(shù)[A];中國宇航學(xué)會(huì)固體火箭推進(jìn)第22屆年會(huì)論文集（推進(jìn)劑分冊(cè)）[C];2005年

相關(guān)碩士學(xué)位論文 前3條

1 何永軍;貧氧推進(jìn)劑動(dòng)靜態(tài)燃速相關(guān)性研究[D];西北工業(yè)大學(xué);2006年

2 喬立;神經(jīng)網(wǎng)絡(luò)與遺傳算法在Mg/PTFE貧氧推進(jìn)劑配方優(yōu)化中的應(yīng)用[D];南京理工大學(xué);2010年

3 武湃;GAP貧氧推進(jìn)劑熱分解特性與燃速相關(guān)性研究[D];國防科學(xué)技術(shù)大學(xué);2002年

，

本文編號(hào)：2167541