2011年3月1日 · The experimental results demonstrate that combining SEM with the DIC is capable of studying the deformation field of PBX at a micro-scale. The results show that cracks initiate and propagate along the particle surfaces, and the dominant fracture mode is inter-granular cracking.

2023年3月15日 · PBX 1314 (60 wt% RDX, 16 wt% aluminum, and 24 wt% HTPB) is a popular propellant owing to its characteristics of high energy density and low sensitivity. In this study, the compressive damage evolution rules and the strain rate effect of PBX 1314 were investigated by using a multiscale method.

2022年1月15日 · SEM images of the fracture surface for (b) HMX/PBX and (c) HMX@CSP-4 h/PBX samples. To get a deep insight into the mechanism of interfacial reinforcement, fractured PBX specimens were sent to SEM analysis.

2023年9月22日 · In this study, a DEM of PBX is established, which considers the actual morphology and non-uniform microstructure of PBX. Further, the mechanical properties, micromechanical behavior, and damage evolution of HMX-based PBX under quasi-static compression and tension are investigated.

Polymer-bonded explosive (PBX) is a composite material con-taining a large volume of crystalline high explosive (90–95% by weight) mixed with a small...

2011年3月1日 · Polymer bonded explosives (PBXs) are highly particle-filled composite materials. This paper experimentally studies the tensile deformation and fracture behavior of a PBX simulation by using the… Abstract: Quasi‐static uniaxial compression experiments were conducted on a polymer‐bonded explosive (PBX) simulant.

Abstract The micro-scale mechanical behavior of a polymer-bonded explosive (PBX) simulant was experimentally studied using a scanning electron microscope (SEM) imaging system and digital image correlation (DIC) method. The semi-circular bend (SCB) test was chosen for the study.

2012年3月2日 · Abstract: Quasi-static uniaxial compression experiments were conducted on a polymer-bonded explosive (PBX) simulant. At macro-scale, the deformation and fracture process of samples were recorded using a charge-coupled-device camera.

A novel hybrid/inverse optimization strategy was developed to calibrate the cohesive parameters of PBX 1314, and the accuracy of the parameters was verified basis experimental results.

2024年2月16日 · Uniaxial cyclic compression tests were performed to investigate the compression deformation and damage of polymer-bonded explosive (PBX) simulant, particularly shear localization. The macroscopic mechanical behavior and mesoscale failure mechanisms of the PBX simulant were analyzed by optical observation and SEM scanning methods.