A Viscoelastic Model for PBX Binders

Mas, E. M.; Clements, B. E.; Blumenthal, Brennan T.; Cady, Carl M.; Gray, G. T.; Liu, C.

doi:10.1063/1.1483625

Cited by 50 publications

(32 citation statements)

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“…The elastic bulk and shear moduli of particles are K p = 12.5 GPa and l p = 5.43 GPa (Zaug, 1998). The matrix Young's modulus is E m = 1 MPa, and Poisson's ratio m m = 0.499 (Cady et al, 2000;Mas et al, 2001). The parameters in the interface cohesive law for the high explosive PBX 9501 are r max = 1.66 MPa, k = 1.55 GPa/lm andk ¼ 17 MPa=mm (Tan et al, 2005b), which give the critical opening displacement d open = 98 lm.…”

Section: Linear Stage Of Interface Debondingmentioning

confidence: 99%

The uniaxial tension of particulate composite materials with nonlinear interface debonding

Tan

Huang

Liu

et al. 2007

International Journal of Solids and Structures

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Debonding of particle/matrix interfaces can significantly affect the macroscopic behavior of composite material. We have used a nonlinear cohesive law for particle/matrix interfaces to study interface debonding and its effect on particulate composite materials subject to uniaxial tension. The dilute solution shows that, at a fixed particle volume fraction, small particles lead to hardening behavior of the composite while large particles yield softening behavior. Interface debonding of large particles is unstable since the interface opening (and sliding) displacement(s) may have a sudden jump as the applied strain increases, which is called the catastrophic debonding. A simple estimate is given for the critical particle radius that separates the hardening and softening behavior of the composite.

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Section: Linear Stage Of Interface Debondingmentioning

confidence: 99%

The uniaxial tension of particulate composite materials with nonlinear interface debonding

Tan

Huang

Liu

et al. 2007

International Journal of Solids and Structures

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“…A polymer binder of estane was distributed between the RDX grains, for a spatially uniform interface. Material properties for the estane polymer binder were obtained from measurements by Mas et al [31] and Barua and Zhou [32] as given in Table 2. Table 3 shows the viscoelastic material properties for the estane binder, which were obtained from measurements by Mas et al [31].…”

Section: Resultsmentioning

confidence: 99%

“…Finite viscoelasticity is employed to account for the general viscous nonlinear behavior of estane at operating temperatures that are generally above the glass transition temperature. The glass transition temperature of estane is approximately À40°C [31], which indicates that the binder would be in a viscoelastic response state for the prescribed dynamic loading conditions that have been considered in this investigation. The finite viscoelastic constitutive model is based on a generalized Maxwell model.…”

Section: Finite Viscoelasticity Constitutive Formulation For Polymer mentioning

confidence: 94%

“…A polymer binder of estane, with a volume fraction of approximately 15%, was randomly distributed between the RDX grains. The material properties for the estane polymer binder were based on measurements by Mas et al [31] and Barua and Zhou [32], as shown in Table 2. A pre-existing crack of 100 lm was used in the left side of the model.…”

Section: Aggregate Behavior For a Nominal Strain Rate Of 10 4 S à1mentioning

confidence: 99%

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Interfacial effects on fracture nucleation and propagation in crystalline–amorphous energetic material systems

LaBarbera

Zikry

2015

Computational Materials Science

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“…The Boltzmann superposition principle (BSP) provides an accurate model for the polymer's viscoelastic mechanical response [34,35]. The corresponding constitutive equation is described as:…”

Section: Constitutive Modeling Of Smpmentioning

confidence: 99%

Adaptive repair device concept with shape memory polymer

Zhao

Liu

Lan

et al. 2017

Smart Mater. Struct.

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. AbstractShape memory polymer (SMP) is a new kind of intelligent polymer which can be activated by an external stimulus to change and subsequently recover its original shape. Duo to this shape memory effect, SMP can be used in wide range of engineer and bio-medical applications. This paper details an application of SMP on manufacturing of a fracture fixation. The basic properties were characterized by dynamic mechanical analysis (DMA), and the stress relaxation and fatigue were established. A SMP based fracture fixator was designed, analyzed and optimized.Finally, the fixator was fabricated and the fixed effects were verified by experiment in vitro. The performance of SMP based fixator was excellent and proved to be a potential replacement for traditional fracture fixator.

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A Viscoelastic Model for PBX Binders

Cited by 50 publications

References 0 publications

The uniaxial tension of particulate composite materials with nonlinear interface debonding

The uniaxial tension of particulate composite materials with nonlinear interface debonding

Interfacial effects on fracture nucleation and propagation in crystalline–amorphous energetic material systems

Adaptive repair device concept with shape memory polymer

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