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- W2884414692 abstract "Projectile size effect is of great importance since the scaling researches are extensively applied to concrete penetration investigations. This paper numerically deals with the projectile size effect on penetration resistance via the recently developed Lattice Discrete Particles Model (LDPM) which is featured with mesoscale constitutive laws governing the interaction between adjacent particles to account for cohesive fracture, strain hardening in compression and compaction due to pore collapse. Simulations of two different penetration tests are carried to shed some light on the size effect issue. The penetration numerical model is validated by matching the projectile deceleration curve of and predicting the depth of penetration (DOP). By constant velocity penetration simulations, the target resistance is found to be dependent on the projectile size. By best fitting numerical results of constant velocity penetration, a size effect law for target resistance is proposed and validated against literature data. Moreover, the size effect is numerically obtained in the projectile with longer extended nose part meanwhile the shorter extended nose is found to improve the DOP since the projectile nose is sharpened." @default.
- W2884414692 created "2018-08-03" @default.
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- W2884414692 date "2018-10-01" @default.
- W2884414692 modified "2023-09-27" @default.
- W2884414692 title "Numerical study of size effect in concrete penetration with LDPM" @default.
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- W2884414692 doi "https://doi.org/10.1016/j.dt.2018.07.006" @default.
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