Results 51 to 60 of about 52,081 (256)

Strength criterion of composite solid propellants under dynamic loading

Defence Technology, 2018
Based on the dynamic loading (1-100 s−1) experiments under different temperatures (223–298 K) and stress states, uniaxial and biaxial strength criterion of a Hydroxyl-terminated polybutadiene (HTPB) based composite solid propellant were further ...
Zhe-jun Wang, Hong-fu Qiang, Guang Wang, Biao Geng   +3 more
doaj   +1 more source

Investigation on A Viscoelastic Creep Damage Constitutive Model for HTPB Propellant and Its Application in Finite Element Analysis

Journal of Electrical Systems
Solid rocket motor (SRM) is typically kept in storage for a significant portion of its lifespan. During storage, the propellant grain creeps under the action of gravity.
Yanshen Zhang, Hongfu Qiang, Xueren Wang, Zhejun Wang, Jiaxiang Wang, Huiru Cui   +5 more
semanticscholar   +1 more source

A Critical Review of Limitations and Challenges in Advancement of HNF as a Green Oxidizer for Composite Solid Propellant Formulations

Propellants, Explosives, Pyrotechnics, Volume 50, Issue 7, Page 11-30, July 2025.
ABSTRACT Hydrazinium nitroformate (HNF) is a chlorine‐free, high‐energy oxidizer with promising applications in green propulsion systems. This review examines the thermal decomposition, combustion kinetics, flame structure, and behavior of HNF, while critically evaluating the current body of literature.
Lakshay Bansal, Prakhar Jindal, Vineet Kumar Rathi   +2 more
wiley   +1 more source

Effects of Nano-Sized Al on the Combustion Performance of Fuel Rich Solid Rocket Propellants

Eurasian Chemico-Technological Journal, 2016
Several industrial- and research – type fuel rich solid rocket propellants containing nano-metric aluminum metal particles, featuring the same nominal composition, were prepared and experimentally analyzed. The effects of nano-sized aluminum (nAl) on the
W.Q. Pang, F. Q. Zhao, L. T. DeLuca, C. Kappenstein, H. X. Xu, X. Z. Fan   +5 more
doaj   +1 more source

Thermal decomposition and kinetic modeling of HNTO/AN-based composite solid propellant in the presence of GO-based nanocatalyst

FirePhysChem, 2022
The present study has been conducted to investigate the characteristics of composite solid propellant (CSP) based on hydrazinium 3-nitro-1,2,4-triazol-5-one and ammonium nitrate (HNTO/AN) cocrystal as an oxidizer and hydroxyl-terminated polybutadiene ...
Sabrina Hanafi, Djalal Trache, Redha Meziani, Hani Boukeciat, Ahmed Fouzi Tarchoun, Amir Abdelaziz, Abderrahmane Mezroua   +6 more
doaj   +1 more source

Moisture And Temperature Ageing On htpb Based Propellants Binder

Macromolecular Symposia, Volume 414, Issue 3, June 2025.
Abstract This study reports the impact of temperature, oxygen, and humidity ageing on the mechanical properties of a crosslinked hydroxy‐terminated polybutadiene (HTPB) network. Its mechanical behavior is described using a classical Mooney‐Rivlin model and shows a slight crosslinking reaction possibly due to oxidation of HTPB.
Théo Evrard, Julien Bonnet, Aude Vandenbroucke, Olivier Castelnau, Emmanuel Richaud   +4 more
wiley   +1 more source

Analysis of pressure blips in aft-finocyl solid rocket motor [PDF]

, 2016
Ballistic anomalies have frequently occurred during the firing of several solid rocket motors (SRMs) (Inertial Upper Stage, Space Shuttle Redesigned SRM (RSRM) and Titan IV SRM Upgrade (SRMU)), producing even relevant and unexpected variations of the SRM
E., Cavallini, Favini, Bernardo, M., Di Giacinto   +2 more
core   +1 more source

Study on the Stress–Strain Relationships and Deterioration Modes of HTPB Propellant with Prefabricated Cracks

Advances in Polymer Technology, 2022
Penetrating cracks with different crack angles were prefabricated in viscoelastic hydroxyl-terminated polybutadiene propellant specimens. Microphotography was performed while tensile tests were conducted on a universal testing machine at tensile rates of
Bo Gao, Zhuo Li
semanticscholar   +1 more source

Influence of AP Particle Size on Burning Characteristics of HMX/AP Propellants Supplemented with Fe2O3

Propellants, Explosives, Pyrotechnics, Volume 50, Issue 6, June 2025.
ABSTRACT Nitramine propellants have attracted considerable attention in the domain of solid rockets and gun propulsion because of their energetic and smokeless features. Ammonium perchlorate (AP) is the widely used oxidizer in propellants owing to the excellent burning characteristics.
Makoto Kohga, Koichiro Urano, Hiroki Matsunaga   +2 more
wiley   +1 more source

A Viscometric study of mixtures with Hydroxyl-terminated polybutadiene (HTPB) and short chain diols used in the formulations of solid composite propellants

Anais da Academia Brasileira de Ciências, 2021
Hydroxyl-terminated polybutadiene (HTPB) is widely used in the formulations of solid propellants used in rocket motors. Furthermore, in general, chain extenders and short chain diols, such as 1,4-butanediol and 1,2-propanediol, can also be used in ...
BRUNO C.C. DA CUNHA, MARCELA G. DOMINGUES, JOSÉ A.F.F. ROCCO   +2 more
doaj   +1 more source