Molten Composition B Viscosity at Elevated Temperature

被引：16

作者：

Zerkle, David K. ^{[1
]}

Nunez, Marcel P. ^{[2
]}

Zucker, Jonathan M. ^{[3
]}

机构：

[1] Los Alamos Natl Lab, Informat Syst & Modeling, Analyt Intelligence & Technol Div, Los Alamos, NM 87545 USA

[2] Univ Delaware, Chem & Biomol Engn, Newark, DE USA

[3] Los Alamos Natl Lab, Explos Sci & Shock Phys Div, Explos Applicat & Special Projects, Los Alamos, NM 87545 USA

来源：

JOURNAL OF ENERGETIC MATERIALS | 2016年 / 34卷 / 04期

基金：

美国能源部;

关键词：

viscosity; molten high explosive; maximum volume fraction; Composition B; non-Newtonian; FALLING CYLINDER VISCOMETER; CONCENTRATED DISPERSE SYSTEMS; NON-NEWTONIAN FLUIDS; RHEOLOGY; TNT; DENSITY; SPHERE;

D O I：

10.1080/07370652.2015.1102179

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A shear-thinning viscosity model is developed for molten Composition B at elevated temperature from analysis of falling ball viscometer data. Results are reported with the system held at 85, 110, and 135 degrees C. Balls of densities of 2.7, 8.0, and 15.6g/cm(3) are dropped to generate a range of strain rates in the material. Analysis of video recordings gives the speed at which the balls fall. Computer simulation of the viscometer is used to determine parameters for a non-Newtonian model calibrated to measured speeds. For the first time, viscosity is shown to be a function of temperature and strain rate-dependent maximum RDX (cyclotrimethylenetrinitramine) particle volume fraction.

引用

页码：368 / 383

页数：16

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