Dynamic Behavior of Three PBXs with Different Temperatures

Li, J. L.; Lu, Fangyun; Chen, R.; Qin, Jianhua; Zhao, Pu; Lan, Lin-gang; Jing, Shiming

doi:10.1007/978-1-4614-0216-9_19

Cited by 5 publications

(10 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…11 Li et al investigated the uniaxial compressive stress-strain behavior of three PBXs and found that the yield strength of PBXs is negatively correlated with temperature and positively correlated with strain rate. 12,13 The compressive and tensile properties of PBX9501 and 9502 have been investigated over broad temperature ranges and drastically different loading strain rates. 14 The dynamic response of an aluminized PBX over a temperature range of À55 C to À2 C and under a xed loading strain rate has been tested using the split Hopkinson pressure bar (SHPB).…”

Section: Introductionmentioning

confidence: 99%

Wide range temperature-dependent deformation and fracture mechanisms for 8701 under dynamic and static loading

Guo

Huang

2018

RSC Adv.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Wide range temperature-dependent deformation and fracture mechanisms for 8701 under dynamic and static loading

Guo

Huang

2018

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Bulk modulus did not change significantly from 293 K to 353 K because of the property of F 2314 binder, meaning the binder softening due to temperature can be restored when the loading temperature is not particularly high. The three elastic moduli for TATB-based PBX at different temperatures obtained by fitting the stress-strain curves are compared with values from experiment [32] and molecular dynamics simulation [33] in Table 2. All the moduli decrease with increasing loading temperature because the flexibility of polymeric binder chain segments increases at higher temperature.…”

Section: Resultsmentioning

confidence: 99%

Mesoscale Simulation to Study Constitutive Properties of TATB/F2314 PBX

Zhang

Sang

et al. 2019

Materials

View full text Add to dashboard Cite

Material Point Method (MPM) mesoscale simulation was used to study the constitutive relation of a polymer bonded explosive (PBX) consisting of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) and a fluorine polymer binder F2314. The stress-strain variations of the PBX were calculated for different temperatures and different porosities, and the results were found to be consistent with experimental observations. The stress-strain relations at different temperatures were used to develop the constitutive equation of the PBX by using numerical data fitting. Stress-strain data for different porosities were used to establish the constitutive equation by fitting the simulation data to an improved Hashion-Shtrikman model. The equation can be used to predict the shear modulus and bulk modulus of the PBX at different densities of the sample. The constitutive equations developed for TATB/F2314 PBX by MPM mesoscale simulation are important equations for the numerical simulations of the PBX at macroscale. The method presented in this study provides an alternative approach for studying the constitutive relations of PBX.

show abstract

“…Some research works on dynamic mechanical properties of PBXs have been done [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. The dynamic and static mechanical properties of PBXs were very different [5].…”

Section: Introductionmentioning

confidence: 99%

“…The dynamic and static mechanical properties of PBXs were very different [5]. Furthermore, researchers have paid more attention to the effect of temperature on dynamic mechanical response of PBXs [6][7][8][9][10][11][12][13][14][15][16]. The stress-strain responses of PBX9501 and mock 9501 were tested under different temperatures and strain rates [6].…”

Section: Introductionmentioning

confidence: 99%

“…Li et al tested the dynamic compression of three PBXs with three different temperatures at different loading strain rates. Their conclusion was that the compressive yield strength of the PBXs was negatively correlated with temperature and positively correlated with the strain rates [13,14]. By using the split Hopkinson pressure bar (SHPB), Qin et al tested a PBX analog to investigate the effect of temperature and strain rate on mechanical properties [15].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic Mechanical Properties and Constitutive Relation of an Aluminized Polymer Bonded Explosive at Low Temperatures

Lin¹,

Xu²,

Chen³

et al. 2014

Shock and Vibration

View full text Add to dashboard Cite

Polymer bonded explosives (PBXs) are widely used as energetic fillings in various warheads, which maybe are utilized under extreme environments, such as low or high temperatures. In this paper, the dynamic response of an aluminized polymer bonded explosive was tested at a range of temperatures from −55°C to −2°C and a fixed loading strain rate (~700 s−1) with the split Hopkinson pressure bar (SHPB). The PBX tested is aluminized, which contains 76 wt% RDX, 20 wt% aluminum powder, and 4 wt% polymer binder, respectively. The results show that the effect of temperature on the strength of the PBX is obvious at the tested strain rates. Based on the experimental results and prophase studies, a constitutive model was obtained, in which the effect of temperature and strain rate were considered. The modeling curves fit well with the experimental results, not only at low temperature under 0°C, but also at room temperature (20°C). The model may be used to predict the dynamic performances of the PBXs in various environments.

show abstract

Dynamic Behavior of Three PBXs with Different Temperatures

Cited by 5 publications

References 6 publications

Wide range temperature-dependent deformation and fracture mechanisms for 8701 under dynamic and static loading

Wide range temperature-dependent deformation and fracture mechanisms for 8701 under dynamic and static loading

Mesoscale Simulation to Study Constitutive Properties of TATB/F2314 PBX

Dynamic Mechanical Properties and Constitutive Relation of an Aluminized Polymer Bonded Explosive at Low Temperatures

Contact Info

Product

Resources

About