A new constitutive equation for solid propellant with the effects of aging and viscoelastic Poisson’s ratio

Cui, Huiru; Shen, Zhi-Bin; Li, Haiyang

doi:10.1007/s11012-018-0829-z

Cited by 12 publications

(6 citation statements)

References 35 publications

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“…In order to obtain the strain ɛ 2,j of the second part of the model shown in Figure 2, the values of the parameters E 2 and η 2 are adjusted according to the experimental results. Derived from equation (7), the strain rate ɛ' 2,j can be obtained. e 0 2;j ¼…”

Section: Computing Methodsmentioning

confidence: 99%

“…In addition, NEPE propellants are also a type of particulate composite. The mechanical properties of the material would degrade under damaging load [7][8][9]. So, viscoelasticity and damage evolution should be considered together to study the mechanical properties of the propellant under damaging load.…”

Section: Introductionmentioning

confidence: 99%

“…Meanwhile, the viscoelastic deformation of the matrix is always increasing, which is also the damage for the propellants. Finally, damage results in the fracture of the specimen [3,7,8].…”

Section: Introductionmentioning

confidence: 99%

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Study on the Viscoelastic Damage Properties of NEPE Solid Propellant with Different Cyclic Stress Ratios

Fang

Sha³

et al. 2022

Propellants Explo Pyrotec

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Viscoelastic damage properties of NEPE (Nitrate Ester Plasticized Polyether) solid propellant have been studied in this work. This work focuses on the creep and fatigue damage evolution. Cyclic loading tests for NEPE solid propellants are conducted with different stress ratios. Then a modified model incorporating viscoelasticity and damage evolution is presented and used to fit the experimental data. The fitting results show that the model is suitable to characterize the viscoelastic damage properties of NEPE propellants with different stress ratios. Based on the model with parameters for NEPE propellants, the damage parameter D are obtained. The damage evolution curves under different loading conditions are given. It is shown that, from the predicted damage evolution curves, the critical damage parameter Dcr at the fracture points can be used to predict the fatigue lives under different loading conditions.

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Section: Computing Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study on the Viscoelastic Damage Properties of NEPE Solid Propellant with Different Cyclic Stress Ratios

Fang

Sha³

et al. 2022

Propellants Explo Pyrotec

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“…Cui et al. [12] proposed a new creep‐type intrinsic model of propellant considering time and temperature dependent Poisson's ratios. Hu et al.…”

Section: Introductionmentioning

confidence: 99%

“…Researchers at home and abroad have done a lot of research on the creep behavior of propellants [5][6][7][8][9][10][11]. Cui et al [12] proposed a new creep-type intrinsic model of propellant considering time and temperature dependent Poisson's ratios. Hu et al [6] found that the high-temperature creep performance of polyether propellant is strongly correlated with stress and temperature, especially the load effect is obvious.…”

Section: Introductionmentioning

confidence: 99%

Creep behaviors of HTPE propellants

Luo

Zhu

Liu

et al. 2023

Propellants Explo Pyrotec

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In this paper, creep tests were carried out on HTPE/AP/Al/RDX propellant specimens to investigate the effects of stress level and temperature on their creep behavior and to investigate the creep mechanism. Higher stresses and temperature can cause greater creep strain in the propellant, ultimately leading to its destruction. On this basis, the creep master curve was further obtained based on the Time‐Temperature Superposition Principle (TTSP), extending the creep investigation time range to 1010 s. Based on previous experience, some explorations have been made on constitutive equations. The burgers model fits the creep behavior under different conditions more closely, while the Norton model has higher stress sensitivity.

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An investigation on a new creep constitutive model and its implementation with the effects of time- and temperature-dependent Poisson’s ratio

Cui

Shen

2018

Acta Mech

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A new constitutive equation for solid propellant with the effects of aging and viscoelastic Poisson’s ratio

Cited by 12 publications

References 35 publications

Study on the Viscoelastic Damage Properties of NEPE Solid Propellant with Different Cyclic Stress Ratios

Study on the Viscoelastic Damage Properties of NEPE Solid Propellant with Different Cyclic Stress Ratios

Creep behaviors of HTPE propellants

An investigation on a new creep constitutive model and its implementation with the effects of time- and temperature-dependent Poisson’s ratio

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