Results 21 to 30 of about 13,533 (294)

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

Analysis on damage characteristics and detonation performance of solid rocket engine charge subjected to jet

Defence Technology, 2022
To further explore the damage characteristics and impact response of the shaped charge to the solid rocket engine (SRE) in storage or transportation, protective armor was designed and the shelled charges model (SCM)/SRE with protective armor impacting by
Song-lin Pang, Xiong Chen, Jin-sheng Xu, Ge-tu Zhaori, Hong-Ying Du   +4 more
doaj   +1 more source

Influence of 1,4-butanediol on hydroxyl-terminated poly(butadiene) based composite propellant binder characteristics [PDF]

Scientific Technical Review, 2015
1.4-butanediol, as a chain extender, was incorporated into a hydroxyl-terminated poly(butadiene) based composite rocket propellant binder composition. As curing agents, isophorone diisocyanate (IPDI) and toluene diisocyanate (TDI) were used.
Brzić Saša, Rodić Vesna, Dimić Mirjana, Simić Danica, Jelisavac Ljiljana, Bogosavljević Marica   +5 more
doaj  

Investigation of the Effect of Axial Gap on the Mechanical Response of a Cartridge-Loaded CMDB Propellant Grain under Vibration Loads

International Journal of Aerospace Engineering, 2023
In this study, the effect of the axial gap on the mechanical response of a cartridge-loaded propellant grain under vibration loads is investigated. The wide strain rate range of uniaxial compression tests (1.7×10−3~4×103 s−1) on the composite modified ...
Yiming Zhang, Ningfei Wang, Xiaoxu Chen, Ran Wang, Long Bai, Jinfeng Dang, Yi Wu   +6 more
doaj   +1 more source

Research on Solving the Structural Instability of Composite Propellants by Using Non-Ablative Cladding Layers

Aerospace
In a high-temperature test of the gas generator with a free-loading composite propellant, an abnormal jitter appeared in the latter part of the internal ballistic curve, whereas no such abnormality was observed in the low-temperature and normal ...
Gang Zhang, Mingming Zhan, Wen Feng, Youwen Tan, Yang Liu, Weihua Hui   +5 more
doaj   +1 more source

Performance evaluation of commercial copper chromites as burning rate catalyst for solid propellants [PDF]

Journal of Aerospace Technology and Management, 2010
Copper chromites are well known as burning rate catalysts for the combustion of composite solid propellants, used as a source of energy for rocket propulsion.
Milton Faria Diniz, Eunice Aparecida Campos, Luis Cláudio Rezende, Rita de Cássia L. Dutra, Wilma Massae Dio Nawa, Koshun Iha   +5 more
doaj  

A Step-by-Step Equivalent Microprediction Method for the Mechanical Properties of Composite Solid Propellants considering Dewetting Damage

International Journal of Aerospace Engineering, 2022
Reliable prediction of the macromechanical properties of composite solid propellants in the microscale can accelerate the development of propellants with high mechanical properties.
Huiru Cui, Xuan Lv, Yurong Xu, Zhiwen Zhong, Zixiang Zhou, Weili Ma   +5 more
doaj   +1 more source

Study on peristaltic continuous mixing conveyor for composite propellant slurry mixing

Nihon Kikai Gakkai ronbunshu, 2017
In recent years, the demand for rocket launching has increased due to the development of space technology. However, using inexpensive rockets is not always possible.
Yasuyuki YAMADA, Shun YOSHIHAMA, Akihiro IWASAKI, Kyota ASHIGAKI, Kotaro MATUMOTO, Hiroto HABU, Taro NAKAMURA   +6 more
doaj   +1 more source

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon, Peter T. Gallagher, Orly I. Richter, Neermala Poudel Neupane, Amy C. Mandigo, Jennifer J. McCann, Emanuela Dylgjeri, Irina Vasilevskaya, Christopher McNair, Channing J. Paller, Wm. Kevin Kelly, Karen E. Knudsen, Matthew J. Schiewer, Ayesha A. Shafi   +13 more
wiley   +1 more source

Experimental study on thermal decomposition kinetics of natural ageing AP/HTPB base bleed composite propellant

Defence Technology, 2018
The kinetics of the thermal decomposition for a naturally ageing ammonium perchlorate (AP) and hydroxyl-terminated-polybutadiene (HTPB) base bleed composite propellant were investigated using a differential scanning calorimetry (DSC).
Ling-ke Zhang, Xiang-yang Zheng
doaj   +1 more source