Figure - available from: Physics of Fluids
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The characteristics and parameter dependences of blast loading on solid and porous structures subject to explosions in a confined space are numerically investigated based on a shock tube configuration wherein the explosive source is approximated by a section at the closed end of the tube filled with high pressure gases. Using a four-way coupling co...
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The composite charge structure may have the potential to enhance the overall damage capability of the weapon. In this regard, three-dimensional LS-DYNA simulation software (dynamics calculation software from LSTC) was used to simulate the explosion process of charges in a partially confined space. The effects of different aluminized charge structur...
Citations
... 56,57 In addition, as gas penetrates through the porous medium, the pressure decreases significantly due to the infiltrating gas absorbing energy. 58 As the initial outer radius of the powder becomes larger, these effects create a greater attenuation of pressure while passing through the powder, leading to a lower pressure at the outer boundary (t 1 frame in Fig. 15). Consequently, the degree of outward dispersion (i.e., the outward displacement of the outer boundary, d b ) becomes weaker (t 2 frame in Fig. 15). ...
Under the strong pressure pulse induced by a shock wave, powders with diverse physical properties exhibit distinct instability and dispersion patterns that develop into jets over time.
