Results 1 to 10 of about 520 (213)

Theoretical stress mechanism and structural integrity of viscoelastic propellant grains with variable Poisson’s ratio [PDF]

Scientific Reports
For the propellant grain of solid rocket motors (SRMs) with circular inner surfaces, the generalized Maxwell model (GMM) and the generalized Kelvin–Voigt model (GKV) are used to characterize the relaxation properties of the grain’s elastic modulus and ...
Xueren Wang, Yanchao Wang, Hongfu Qiang, Jianfang Bai, Zhipeng Zhao, Chao Luo   +5 more
doaj   +2 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

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

Polymers, 2023
Xiangyang Liu, Dongmo Zhou, Ruimin Wang   +2 more
exaly   +2 more sources

Structural Integrity Assessment of an NEPE Propellant Grain Considering the Tension–Compression Asymmetry in Its Mechanical Property [PDF]

Polymers, 2023
Dongmo Zhou
exaly   +2 more sources

Research on the influence of loading rate on the dynamic initiation fracture toughness of CMDB propellant [PDF]

Scientific Reports
In the field of gun launched missile extended range rocket, the propellant grain in the rocket needs to withstand significant launch loads during their firing phase, and also bear the high pressure caused by ignition, and the impact of launch overloads ...
Jian Zheng, Xuan Wu, Zhengwei Sun, Zongtao Guo, Menglong Zhang, Xiong Chen   +5 more
doaj   +2 more sources

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

Polymers
Chenghu Tang, Hongfu Qiang, Xueren Wang   +2 more
exaly   +2 more sources

Performance Analysis of the Solid Rocket Propulsion System Using Solid Modeling and Level Set Method [PDF]

한국정밀공학회지, 2021
The performance prediction and grain burn-back analysis of rocket motor are important steps in the designing of a solid propellant rocket motor. The grain burn-back analysis of the solid grain identifies the burning surface area at each burning step in ...
Kyung Moo Kim, Doo Hee Han, Min Kyum Kim
doaj   +1 more source

Structural response analysis of a solid rocket motor with HTPB propellant grain under vertical storage condition

Xibei Gongye Daxue Xuebao, 2022
Aiming at the structural response characteristics of solid rocket motor (SRM) under vertical storage conditions, the creep tests of HTPB propellant under different stress levels were carried out, and the creep constitutive model of the propellant was ...
CHEN Ke, REN Quanbin, CHENG Jiming, WANG Jianru, LEI Jiahao   +4 more
doaj   +1 more source

Methodology for Testing High-Energy Materials Under Low Temperature Conditions [PDF]

Problemy Mechatroniki, 2021
The methodology developed for testing gun propellants at low temperatures according to PN-EN ISO 604:2006 is presented in the paper. Brief characteristics are given of the materials tested and the most important static compression test conditions, such ...
Patryk MODRZEJEWSKI, Jacek JANISZEWSKI
doaj   +1 more source

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