Results 31 to 40 of about 9,342 (197)

The Mesoscopic Numerical Simulation of GAP/CL20/AP Composite Solid Propellant Based on MPM and FEM

Applied Sciences, 2023
In this paper, first, the meso-debonding process of a GAP/CL20/AP composite solid propellant under uniaxial tension was analyzed using the advantages of the material point method (MPM) and the finite element method (FEM) for the first time; then, the ...
Xiaoyong Gu, Xiangyang Liu, Chunying Dong, Guanglong Zhang, Liming Zhang, Fengjian Zhang   +5 more
doaj   +1 more source

Preparing oxidizer coated metal fuel particles [PDF]

, 1974
A solid propellant composition of improved efficiency is described which includes an oxidizer containing ammonium perchlorate, and a powered metal fuel, preferably aluminum or beryllium, in the form of a composite.
Shafer, J. I., Simmons, G. M.
core   +1 more source

Some experimental results on the L-star instability of metallized composite propellants [PDF]

, 1975
Experimental results are reported on the Lstar instability characteristics of three AP I composite propellants. The metal content of the propellants is 2%, 16%, and 16%.
Kumar, R. N.
core  

Constitutive Model Based on Stress Relaxation for Composite Modified Double-Base Propellants and Master Curve of Relaxation Modulus

Aerospace
This study investigates the constitutive model and relaxation modulus master curve of composite modified double-base (CMDB) propellants through uniaxial constant-rate tensile tests and stress relaxation tests.
Yao Li, Jinsheng Xu, Changsheng Zhou, Xiong Chen, Xiumin Yang   +4 more
doaj   +1 more source

Hazards protection for space suits and spacecraft [PDF]

, 1990
A flexible multi-layered covering article for protection against the hazards of exposure to the environment of outer space is disclosed. The covering includes an outer layer section comprising an outermost lamina of woven expanded tetrafluoroethylene ...
Dawn, Frederic S., Kosmo, Joseph J.
core   +1 more source

Possibility of aluminium/magnesium exchange in composite rocket propellants [PDF]

Scientific Technical Review, 2018
Composite solid propellants based on ammonium perchlorate/hydroxyterminated polybutadiene/isophorone dyisocyanate including two metal components: aluminium and magnesium with different contents have been represented in this paper.
Rodić Vesna, Bogosavljević Marica, Brzić Saša, Fidanovski Bojana   +3 more
doaj  

Characterization of CL-20/HMX cocrystallization and its effects on GAP-based propellants during thermal aging process

Polymer Testing
The incorporation of HMX and CL-20 as component particles can greatly improve the energy efficiency of composite propellants. Nevertheless, the occurrence of cocrystallization arises when HMX and CL-20 exists together.
Jiangtao Wang, Guanglong Zhang, Xiangyang Liu, Ningfei Wang   +3 more
doaj   +1 more source

Small rocket engine Patent [PDF]

, 1967
Regenerative cooling system for small rocket engine having restart capability and using noncryogenic hypergolic ...
Latto, W. T., Jr.
core   +1 more source

Combustion performance studies of aluminum and boron based composite solid propellants in sub-atmospheric pressure regimes

Propulsion and Power Research, 2019
The aim of present study is to investigate the burning rate, ignition delay, and flame characteristics of ammonium perchlorate (AP)-hydroxyl terminated poly-butadiene (HTPB) [AP/HTPB] based composite propellants (CSP's) in sub-atmospheric pressure ...
Pratim Kumar, Mayank Varshney, Aniket Manash   +2 more
doaj   +1 more source

Comparative energy storage assessment item [PDF]

, 1984
This analysis, a Space Station application study, rediscovered Integrated Power and Attitude Control (IPAC) and found the approach to have lower initial and resupply weight and lower initial and resupply cost than either battery/CMG or regenerative fuel ...
Giudici, B.
core   +1 more source