Improving the Mechanical Properties of Glycidyl Azide Polymeric Matrix Used in Composite Solid Rocket Propellant by Adding Advanced Cross-Linker

2019 ◽  
Vol 645 (5) ◽  
pp. 551-557 ◽  
Author(s):  
Islam K. Boshra ◽  
Ahmed Elbeih ◽  
Hosam E. Mostafa
2016 ◽  
Vol 70 (5) ◽  
pp. 581-594 ◽  
Author(s):  
Nikola Gligorijevic ◽  
Vesna Rodic ◽  
Sasa Zivkovic ◽  
Bojan Pavkovic ◽  
Momcilo Nikolic ◽  
...  

This paper presents the procedure of uniaxial mechanical characterization of composite solid rocket propellant based on hydroxy-terminated polybutadiene (HTPB), whose mechanical properties strongly depend on temperature, strain rate, natural aging and accumulated damage. A method of processing data is presented in order to determine time-temperature shift factor and master curves for tensile strength, ultimate strain and relaxation modulus, depending on reduced time. Functional dependences of these features represent an input for structural analysis of a rocket motor propellant grain. The effects of natural aging on the mechanical properties are also considered.


2004 ◽  
Vol 77 (3) ◽  
pp. 803-813 ◽  
Author(s):  
J. A. F. F. Rocco ◽  
J. E. S. Lima ◽  
A. G. Frutuoso ◽  
K. Iha ◽  
M. Ionashiro ◽  
...  

2018 ◽  
Vol 189 ◽  
pp. 08001 ◽  
Author(s):  
Ali.M.Abd elall ◽  
Guo Lin

An effective pathway was explored to design and select proper bonding agents that could effectively improve the interfacial interactions between bonding agents and solid particles, modern types of composite solid propellants focused on increasing the mechanical properties in order to withstand stresses produced due to various loading conditions, changes in environmental condition, transportation and handling. In this work, the study show that the effect of solvent in production of bonding agent has a different impact on the mechanical properties as the polar solvent in formulation S3 has a good strain values corresponding to the stress. Also the changing of the percentage of CuCl2 has a significant effect on mechanical properties as giving high value of strain with the percentage of 4.5 % and returns back the value of strain decrease with increase the percentage of CuCl2 to give the lowest values of the strain corresponding to the stress value with percentage 7.5 %.


2009 ◽  
Vol 25 (1) ◽  
pp. 60-73 ◽  
Author(s):  
Giuseppe Sandri Tussiwand ◽  
Victor E. Saouma ◽  
Robert Terzenbach ◽  
Luigi T. De Luca

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