Effects of slit plate design on mechanical properties of castable plastic bonded explosives

IF 1.7 4区工程技术 Q3 CHEMISTRY, APPLIED

Propellants, Explosives, Pyrotechnics Pub Date : 2024-05-13 DOI:10.1002/prep.202300340

Alper Sevinc, Baris Edis

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引用次数: 0

Abstract

The effect of slit plate design on PBXs quality was systematically studied from the point of view voids and powder‐binder separation phenomenon. PBXN‐109 type explosive samples were prepared in accordance with MIL−E‐82886 and cast through slit plates of different geometry and perforation size. The other casting parameters such as casting time, temperature, pressure, valve opening and PBX amount kept constant to prevent uncertainties arising from these parameters. Density measurements, X‐ray inspection and tensile tests were carried out to evaluate the air removal and powder‐binder separation characteristic of slit plates. Density measurements did not provide a clear interpretation of the powder‐binder separation and deaeration abilities of slit plates. X‐ray inspections and tensile tests showed that the dimensions and design of slit plate perforations have impact on voids and powder‐binder separation in PBXs. The slit plate #E showed relatively poor performance in terms of stress property, attributed to the largest cross‐sectional area per perimeter length ratio of perforations, leading to decrease in air removal ability.

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缝隙板设计对可浇注塑料粘结炸药机械性能的影响

从空隙和粉末粘合剂分离现象的角度，系统研究了狭缝板设计对 PBX 质量的影响。根据 MIL-E-82886 标准制备了 PBXN-109 型炸药样品，并通过不同几何形状和穿孔尺寸的缝隙板进行浇注。其他浇铸参数，如浇铸时间、温度、压力、阀门开度和 PBX 量保持不变，以防止这些参数产生不确定性。通过密度测定、X 射线检查和拉伸试验来评估狭缝板的除气和粉末粘合剂分离特性。密度测定无法明确解释狭缝板的粉末粘合剂分离和脱气能力。X 射线检查和拉伸试验表明，狭缝板穿孔的尺寸和设计对 PBX 中的空隙和粉末粘合剂分离有影响。E 号狭缝板的应力性能相对较差，原因是穿孔的横截面积与周长之比最大，导致除气能力下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Propellants, Explosives, Pyrotechnics 工程技术-工程：化工

CiteScore

4.20

自引率

16.70%

发文量

235

审稿时长

2.7 months

期刊介绍： Propellants, Explosives, Pyrotechnics (PEP) is an international, peer-reviewed journal containing Full Papers, Short Communications, critical Reviews, as well as details of forthcoming meetings and book reviews concerned with the research, development and production in relation to propellants, explosives, and pyrotechnics for all applications. Being the official journal of the International Pyrotechnics Society, PEP is a vital medium and the state-of-the-art forum for the exchange of science and technology in energetic materials. PEP is published 12 times a year. PEP is devoted to advancing the science, technology and engineering elements in the storage and manipulation of chemical energy, specifically in propellants, explosives and pyrotechnics. Articles should provide scientific context, articulate impact, and be generally applicable to the energetic materials and wider scientific community. PEP is not a defense journal and does not feature the weaponization of materials and related systems or include information that would aid in the development or utilization of improvised explosive systems, e.g., synthesis routes to terrorist explosives.