Results 131 to 140 of about 370 (179)

Studying for the State Monitoring Time of HTPB Propellant

2016 9th International Symposium on Computational Intelligence and Design (ISCID), 2016
Using the finite element analysis to draw a certain type of HTPB propellent on duty in the natural storage and carrier state of stress - time curve, using the linear cumulative damage theory, the HTPB propellent of cumulative damage in both conditions are simulated and calculated the two states of cumulative damage factor, discuss the engine timing of ...
Yanhui Tang, Kehai Dong, Hao Wu, Bo Zhang, Liguan Pei   +4 more
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Solid Propellants based on ADN and HTPB

47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011
The aim of this work was to perform an initial evaluation of ammonium dinitramide, ADN, as substitute for ammonium perchlorate, AP, in solid rocket propellants for large space launch boosters. This paper includes performance evaluation, curing and compatibility assessments, propellant formulation and determination of ballistic properties.
John de Flon, Sten Andreasson, Mattias Liljedahl, Carl Oscarson, Marita Wanhatalo, Niklas Wingborg   +5 more
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Combustion of AP/HTPB laminate propellants

37th Joint Propulsion Conference and Exhibit, 2001
The combustion of AP/HTPB laminate propellants has been investigated experimentally and theoretically. The experiments used simultaneous UV emission and transmission imaging to obtain information about the flame structure and the burning surface profile.
M. Brewster, G. Knott, B. Chorpening
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HTPB propellants for large booster applications

7th Propulsion Joint Specialist Conference, 1971
Solid propellants based on low cost hydroxyl terminated polybutadiene binders meeting burning rate, mechanical properties and processing requirements for large booster ...
P. SMITH, H. BANKAITIS
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Investigation of Fracture Criterion for HTPB Propellant

Advanced Materials Research, 2012
The fracture toughness of HTPB propellant has a significant rate effect. In order to establish a fracture criterion considering rate effect for HTPB propellant, experiments were conducted at different loading rates. Two kinds of specimens were used to get the fracture properties.
Bo Han, Yu Tao Ju, Chang Sheng Zhou
openaire   +1 more source

A Study of a Novel Additive for HTPB Propellant

1976
Abstract : Experimental studies were conducted to define the utility regimes of graphite linters (chopped graphite fiber ranging from 50 to 200 micrometers) with respect to burn rate augmentation, acoustic stabilization and processing improvement in HTPB composite propellant. Linter utility regimes were defined with respect to burn rate reproducibility
M. W. Beckstead, A. G. Butcher, J. P. Peterson   +2 more
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Aluminum agglomeration of AP/HTPB composite propellant

Acta Astronautica, 2019
Abstract Aluminum (Al) powder agglomeration is one of the main reasons for the degradation in the performance of aluminized solid propellant rockets and so, understanding the combustion behavior of aluminum in solid propellants is of great importance.
Jifei Yuan, Jianzhong Liu, Yunan Zhou, Jianru Wang, Tuanwei Xv   +4 more
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Development of HTPB Propellant for Ballistic Missiles

1974
Abstract : The program objective is to develop a family of solid propellants for ballistic missiles based on an HTPB (hydroxyl terminated polybutadiene) binder, and to demonstrate one optimized propellant formulation by large scale motor firings. Specifically, five propellants have been formulated and are being characterized to the point that they will
Even E. Day, Grant Thompson
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Flame structure of ADN/HTPB composite propellants

Combustion and Flame, 2001
Abstract Visual flame characteristics, burning rates, and final flame temperatures for propellants based on ammonium dinitramide (ADN) and hydroxyl-terminated polybutadiene (HTPB) at different HTPB concentrations (3–20%) have been studied at pressures of 0.05 to 0.6 MPa.
Oleg P Korobeinichev, Alexander A Paletsky   +1 more
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Oscillatory combustion of fine-AP/HTPB propellants

36th AIAA Aerospace Sciences Meeting and Exhibit, 1998
The steady and oscillatory combustion of wide distribution AP/HTPB composite propellants containing coarse AP and fuel-rich, fine-AP/HTPB pocket regions is being investigated experimentally and theoretically. These propellants are of special interest because they are similar to many wide distribution bi-modal tailorable plateau propellants.
S. Hickman, M. Brewster
openaire   +1 more source