Results 11 to 20 of about 591 (257)

Study on the Burning of Grain-molded Propellant

Energy Procedia, 2015
AbstractThe investigation of the burning of grain-molded propellant comprises progressive burning, ignition and internal ballistic property. The grain-molded propellant is extruded by high energy nitramine propellant in the professional mould. The grain-molded propellant was studied by closed-bomb test, ignition simulation equipment test and 30mm ...
Yao, Yue-Juan, Liu, Bo, Wang, Qiong-Lin, Liu, Shao-Wu, Wei, Lun, Zhang, Yuan-Bo   +5 more
openaire   +3 more sources

Technique to Assess Aging of Propellant Grain

Chinese Journal of Aeronautics, 2006
AbstractPhysical properties of composite propellants used in solid rocket motors change significantly with age. To predict the margin of safety and to reevaluate the remaining service life, the structural integrity analysis of solid propellant grains of aged rocket motors is pa-formed at various stages of their life span.
MUHAMMAD, Majd-ud-din, LU, Guo-zhi, REN, Ke-liang   +2 more
openaire   +3 more sources

Reverse design of solid propellant grain based on deep learning: Imaging internal ballistic data

Defence Technology
The reverse design of solid rocket motor (SRM) propellant grain involves determining the grain geometry to closely match a predefined internal ballistic curve. While existing reverse design methods are feasible, they often face challenges such as lengthy
Lin Sun, Xiangyu Peng, Yang Liu, Shu Long, Weihua Hui, Ran Wei, Futing Bao   +6 more
doaj   +3 more sources

Effect of Mechanical Heterogeneity on the Structural Integrity of HTPB Propellant Grain. [PDF]

Materials (Basel), 2023
Liu X, Hui B, Wang H, Chen H, Zhou D.
europepmc   +2 more sources

Numerical Analysis of Curing Residual Stress and Strain in NEPE Propellant Grain. [PDF]

Polymers (Basel), 2023
Liu X, Xie X, Zhou D, Wang R.
europepmc   +2 more sources

Advances in Structural Reliability Analysis of Solid Propellant Grain: A Comprehensive Review. [PDF]

Polymers (Basel)
Tang C, Qiang H, Geng T, Wang X, Zhang F.   +4 more
europepmc   +2 more sources

Using the Impulse Method to Determine High-Pressure Dynamic Burning Rate of Solid Propellants

Aerospace, 2023
A new method for determining the burning rate of a solid propellant, called the Impulse Method, is proposed in this paper. It is based on the proportional relationship between the impulse generated and the mass of the burned propellant. The pressure–time
Jiahao Liu, Yinghong Wang, Xinyang Li, Junhao Cong   +3 more
doaj   +1 more source

Analysis of viscoelastic behavior of a filled elastomer under action of different loads [PDF]

Hemijska Industrija, 2017
Mechanical properties of viscoelastic filled polymers strongly depend on temperature and strain rate and vary for several orders of magnitude. During service life, a viscoelastic body, especially carboxy-terminated polybutadiene (CTPB) composite solid ...
Gligorijević Nikola I., Živković Saša Ž., Kovačević Nenad V., Dimitrijević Nenad P., Pavković Bojan M., Pavić Miloš, Rodić Vesna Ž.   +6 more
doaj   +1 more source

Effect of Microstructure on Micro-Mechanical Properties of Composite Solid Propellant

Micromachines, 2021
This study was aimed at determining the effect of microstructure on the macro-mechanical behavior of a composite solid propellant. The microstructure model of a composite solid propellant was generated using molecular dynamics algorithm.
Tianpeng Li, Jinsheng Xu, Junli Han, Yong He   +3 more
doaj   +1 more source

A Study on Ultra-Low-Pressure Ratio Technology on the Basis of 3D-Printed Propellant for a Solid Rocket Motor

Aerospace, 2023
Fused deposition technology (FDM), as an additive manufacturing (AM) technology, holds immense potential in the field of solid grain manufacturing. It can accomplish complex grain shaping with ultra-low-pressure ratios, which are challenging to achieve ...
Shixiong Song, Quanbin Ren, Min Tang, Jiawei Shi, Jiawei Wang   +4 more
doaj   +1 more source