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首页> 外文会议>International symposium on ballistics >OBTAINING A CORRELATION BETWEEN PRESSURE TEST RESULTS OF SMALL CALIBER AMMUNITION ACCORDING TO DIFFERENT TEST STANDARDS
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OBTAINING A CORRELATION BETWEEN PRESSURE TEST RESULTS OF SMALL CALIBER AMMUNITION ACCORDING TO DIFFERENT TEST STANDARDS

机译：根据不同的测试标准获得小口径弹药压力测试结果之间的相关性

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The science of “Internal Ballistics” have extensively studied the pressure generated withinthe cartridge and clearly indicate that maximum generated pressure (Peak Pressure) is notto exceed the yield strength of the material of which the cartridge case is made of [1].Failure to ensure this could result in catastrophic accidents that may lead to death orserious injuries. Different test standards (SAAMI, C.I.P, MIL-STD and NATO EPVAT)were established to ensure the safety of the ammunition in terms of pressure. Thesestandards differ in many aspects from the test procedure to the equipment used to theacceptance criteria. The main motive behind this study was understanding the need toestablish a scientific correlation between pressure measurements obtained by different teststandards in order to save cost, time and effort as well as ensuring that a specific type ofammunition that was pressure tested according to one standard is safe to use in a specificweapon that was tested according to another. The main aim of this study was to investigatethe possibility of finding a scientific correlation between the mean peak pressure valuesobtained by the NATO EPVAT and CIP test standards for 7.62 x 51mm NATO BallReference Ammunition through derived and validated equations with fixed conversionfactors in order to convert “actual” Mean Peak Pressure (MPP) and Standard Deviation(SD) values obtained by NATO EPVAT test to predict those values in the C.I.P equivalentand calculate the Average Maximum Pressure (Ptmax).Thirty 7.62 x 51mm NATO BALLreference ammo were tested according to NATO EPVAT and C.I.P and the mean peakpressure conversion factor (FMPP) was found to be 0.974, while the standard deviationconversion factor (F_(SD)) was 1.381. Both conversion factors were used to convert the MPPand SD values obtained by EPVAT testing of the reference ammunition, to their C.I.PEquivalent. These C.I.P converted values were then used to calculate (Predict) theMaximum Average Pressure P_(tmax) which was 3540.26 bar. Validation of this result wasachieved by conducting an actual C.I.P pressure test on the same amount of referenceammunition which resulted in a P_(tmax) of 3422.40 bar with an error percentage betweenactual and predicted Ptmax of 3.54%.
机译：“内部弹道学”的科学已经广泛研究了内部的压力墨盒并清楚地表明最大产生的压力（峰值压力）不是超过墨盒壳体的材料的屈服强度[1]。未能确保这可能导致可能导致死亡或死亡的灾难性事故严重伤害。不同的测试标准（Saami，C.I.P，MIL-STD和北约EPVAT）成立以确保在压力方面的弹药安全。这些标准在测试程序中的许多方面不同于用于设备的设备验收标准。这项研究背后的主要动机是理解需要的建立通过不同测试获得的压力测量之间的科学相关性标准，以节省成本，时间和精力，确保特定类型根据一个标准测试的压力的弹药是安全的，可以在特定的情况下使用根据另一个测试的武器。这项研究的主要目的是调查在平均峰值压力值之间找到科学相关性的可能性由北约EPVAT获得和CIP测试标准7.62 x 51mm nato球通过具有固定转换的导出和验证方程的参考弹药因素以转换“实际”平均峰值压力（MPP）和标准偏差（SD）北约EPVAT测试获得的值，以预测C.I.P等效项中的这些值并计算平均最大压力（PTMAX）.Thttttttttttty 7.62 x 51mm nato球根据Nato Epvat和C.i.p和平均峰​​测试参考AMMO发现压力转换因子（FMPP）为0.974，而标准偏差转换因子（F_（SD））为1.381。两个转换因子都用于转换MPP通过EPVAT测试参考弹药而获得的SD值，到他们的C.I.P相等的。然后使用这些C.i.p转换值来计算（预测）3540.26条的最大平均压力P_（Tmax）。验证此结果是通过对相同的参考量进行实际C.i.p压力测试来实现弹药导致3422.40栏的P_（Tmax），误差百分比实际和预测的ptmax为3.54％。

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