Results 11 to 20 of about 317 (165)

Burning Characteristics of Ammonium-Nitrate-Based Composite Propellants with a Hydroxyl-Terminated Polybutadiene/Polytetrahydrofuran Blend Binder [PDF]

International Journal of Aerospace Engineering, 2012
Ammonium-nitrate-(AN-) based composite propellants prepared with a hydroxyl-terminated polybutadiene (HTPB)/polytetrahydrofuran (PTHF) blend binder have unique thermal decomposition characteristics.
Makoto Kohga, Tomoki Naya, Kayoko Okamoto   +2 more
doaj   +2 more sources

Investigation of hydroxyl-terminated polybutadiene propellant breaking characteristics and mechanism impacted by submerged cavitation water jet

Defence Technology
A submerged cavitation water jet (SCWJ) is an effective method to recycle solid propellant from obsolete solid engines by the breaking method. Solid propellant’s breaking modes and mechanical process under SCWJ impact are unclear.
Wenjun Zhou
exaly   +3 more sources

Experimental and simulation research on microscopic damage of HTPB propellant under tension-shear loading

AIP Advances, 2022
In order to study the influence of loading conditions on propellant mesoscopic failure morphology, scanning electron microscopy was carried out to observe the morphology of the failure section of a hydroxyl-terminated polybutadiene propellant under ...
Jia-yuan Cui, Hong-fu Qiang, Jia-xiang Wang   +2 more
doaj   +1 more source

A Step-by-Step Equivalent Microprediction Method for the Mechanical Properties of Composite Solid Propellants considering Dewetting Damage

International Journal of Aerospace Engineering, 2022
Reliable prediction of the macromechanical properties of composite solid propellants in the microscale can accelerate the development of propellants with high mechanical properties.
Huiru Cui, Xuan Lv, Yurong Xu, Zhiwen Zhong, Zixiang Zhou, Weili Ma   +5 more
doaj   +1 more source

Investigations on the thermal response of a solid rocket motor with complex charge structure using CL-20/GAP propellant

Case Studies in Thermal Engineering, 2022
The thermal safety of a solid rocket motor with a complex charge structure using CL-20 (Hexanitrohexaazaisowurtzitane)/GAP (Glycidyl Azide Polymer) propellant was evaluated. The morphology and thermal decomposition properties of the propellant were first
Yiyao Wang, Junjie Wen, Junsen Yang, Guanglong Zhang, Ningfei Wang, Yi Wu   +5 more
doaj   +1 more source

Experimental and simulative thermal stability study of HTPE solid propellants in different scales

Case Studies in Thermal Engineering, 2021
The hydroxyl-terminated polyether (HTPE) solid propellants are widely recognized as promising alternatives for hydroxyl-terminated polybutadiene (HTPB) propellants due to their compliance with insensitive munition characteristics of composite solid ...
Xu Wang, Chenxi Pei, Feiyang Xu, Xingliang Wu, Huabo Li, Nian Yang, Dabin Liu, Sen Xu   +7 more
doaj   +1 more source

Comparative Assessment of Stabilised Polybutadiene Binder under Accelerated Ageing

Journal of Aerospace Technology and Management, 2016
Polybutadiene elastomers are versatile materials, being employed at several applications from rocket propellant binder to adhesives and sealants. The elastomers derived from hydroxyl-terminated polybutadiene are usually stabilised with antioxidants to ...
Luiz Felipe Cannaval Sbegue, Luciene Dias Villar   +1 more
doaj   +3 more sources

Strain-rate correlation of biaxial tension and compression mechanical properties of HTPB and NEPE propellants

AIP Advances, 2022
An effective biaxial tension and compression test method is proposed based on the shortcomings of current research for the mechanical properties of solid propellants under complex stress states.
Qizhou Wang, Guang Wang, Zhejun Wang, Hongfu Qiang, Xueren Wang, Shudi Pei   +5 more
doaj   +1 more source

Evolution of structural damage of solid composite propellants under slow heating and effect on combustion characteristics

Journal of Materials Research and Technology, 2023
Composite propellants are used to fabricate solid motors for space vehicles. The fundamental factor that affects motor safety is the structural damage in the propellant owing to slow heating in an abnormal storage or service environment.
Jianxin Nie, Jiahao Liang, Haijun Zhang, Yu Zou, Qingjie Jiao, Yingjun Li, Xueyong Guo, Shi Yan, Yanli Zhu   +8 more
doaj   +1 more source

Estudo da decomposição térmica de propelente sólido compósito de baixa emissão de fumaça Study of thermal decomposition of a smokelles propellant

Química Nova, 2008
The thermal decomposition of hydroxyl-terminated polybutadiene (HTPB)/ammonium nitrate (AN) based propellants, so called smokeless formulations, and raw materials were investigated by differential scanning calorimetry (DSC) and thermogravimetry (TG). The
Jony Andrade, Antonio Gonçalves Frutuoso, Koshun Iha, José Atílio Fritz Fidel Rocco, Eduardo M. Bezerra, Jivaldo do Rosário Matos, Maria Encarnación Vázquez Suárez-Iha   +6 more
doaj   +1 more source