Fracture of the pbx 9501 high explosive
WebFeb 27, 2024 · Note that both the measured stresses (allowing for a degree of scatter) for PBX-1 and PBX-2 are near identical, as is the hydrodynamic response (both in terms of U S –u p and P HD –u p) for PBX-1, PBX-2 and PBX 9501. This can be taken as a first indication that the mechanical response to shock loading in HMX based PBXs are largely … WebFeb 25, 2002 · Henson et al. have conducted shear impact experiments using thin samples of PBX 9501 [8].A rectangular steel plunger is driven into the lightly confined sample at about 100 m/s.Plunger intrusion causes both shear and non-shear fracturing with reaction initiated along fracture zones as shown in Fig. 2.Skidmore et al. have used microscopy …
Fracture of the pbx 9501 high explosive
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WebThe results show that PBX ranges from ductile fracture to brittle fracture when the curing temperature increases from 50 to 100 °C, molecular weights decrease from 4000 to 1500 and NCO/OH value ... WebIn this paper, we develop a method to determine the cohesive law for particle/matrix interfaces in the high explosive PBX 9501. We use the digital image correlation technique to obtain the stress and displacement around a macroscopic crack tip in the modified compact tension experiment of PBX 9501.
WebIn this investigation, fracture experiments on a high explosive material (PBX 9501) were conducted using the digital image correlation technique. From the experimental measurement, we are able to determine quantitatively the stress-bridging law (or decohesion law), which characterizes the relationship between the bridging stress and the opening … WebMay 1, 2024 · In this paper, the dynamic fracture of explosives are conducted using a Kolsky bar. The Brazilian test, also known as a indirect tensile test or splitting test, is chosen as the test method. ... This data will be used to decrease federal-regulation-constrained machining time of the high explosive PBX 9501. The effects of machining parameters ...
WebNov 7, 2024 · The interface debonding approximately vertical to the loading direction is the primary failure mechanism under tension, while shear failure along the interfaces and particle fracture plays a significant role under compression. The effects of interface strengths and strain rates on the performance of PBX 9501 are also evaluated. WebJan 1, 2011 · We use four-point bend specimen with a single shallow edge notch to study the fracture process in Mock 900-21, a PBX 9501 high explosive simulant mock. Subject to monotonic loading we determine quantitatively the threshold load for macroscopic crack initiation from the notch tip.
WebAug 4, 2004 · In contrast to many brittle solids, crack initiation and propagation in PBX 9501 high explosive and its simulant are preceded by the formation and extension of a …
WebThe anomalous growth of the the fracture stress (the material’s spall strength) was determined by HEL was caused by phonon viscosity at high strain rates.5,11 As the temperature increased, the rise time of the plastic shock wave FIG. the learning box word worldWebOct 11, 2024 · Sixteen experiments were performed on 1-inch thick discs of PBX 9501, with diameters of 1 in ch, 4.25 in ch, and 5 in ch. The explosive was compressed to a known … the learning care centerWebWe present experiments that examine the combustion of mechanically and thermally damaged samples of PBX 9501. Mechanically damaged samples, damaged by quasi … tiana johnson facebook goulburnWebAug 4, 2004 · ABSTRACT. In contrast to many brittle solids, crack initiation and propagation in PBX 9501 high explosive and its simulant are preceded by the formation and extension of a sizable bridging zone. In this investigation, fracture experiments on the high‐explosive … tiana johnson facebookWebJul 1, 2004 · Fracture of the PBX 9501 High Explosive. Liu, C. In contrast to many brittle solids, crack initiation and propagation in PBX 9501 high explosive and its simulant … the learning center at harvest baptistWebFeb 25, 2002 · Impact or thermal ignition of high explosives (HE) results in deformation that can lead to damage. Fractures or defects, combined with sufficient pressure, … the learning care groupWebAug 1, 2005 · We first present the experimental study on fracture of the high explosive PBX 9501 in Section 2. Applying the digital image correlation technique to a modified … tiana jewelry welland