[HTML][HTML] On the ballistic perforation resistance of additive manufactured AlSi10Mg aluminium plates

M Kristoffersen, M Costas, T Koenis, V Brøtan… - International Journal of …, 2020 - Elsevier
Materials and structures made through additive manufacturing (AM) have received a lot of
attention lately due to their flexibility and ability to customize structural components of …

Ballistic limit predictions of non-identical layered targets perforated in ductile hole formation

R Masri, S Ryan - International Journal of Impact Engineering, 2023 - Elsevier
The ballistic resistance of metallic targets perforated in ductile hole formation can be
accurately calculated for monolithic targets, multi-layered targets with air-gaps between …

Projectile nose-length effect on specific cavitation energy and ballistic limit velocity and thickness

R Masri, S Ryan - International Journal of Impact Engineering, 2025 - Elsevier
The perforation of armour plates by quasi-rigid projectiles in ductile hole growth has been
demonstrated to be influenced by the ratio of plate thickness to projectile diameter, referred …

Practical formulae for predicting the ballistic limit velocity of armour perforation by ductile hole growth

R Masri - International Journal of Impact Engineering, 2022 - Elsevier
Previous comparisons to vast amount of experimental data have shown that the specific
cavitation energy of target material, which takes into account the hole slenderness ratio …

[PDF][PDF] The Importance of the Cavitation Effective Yield Stress and the Hole Slenderness Ratio for Accurate Predictions of Ballistic Limit Velocities

R Masri - 12th international conference on mechanics and …, 2023 - avestia.com
Perforation and penetration mechanics research is mostly governed by experimental and
numerical investigations while analytical models are less available due to the extremely …

Ballistic limit predictions for perforation of aluminium armour plates by rigid nose-pointed projectiles

R Masri, D Durban - International Journal of Impact Engineering, 2019 - Elsevier
We start with a derivation of a new formula for the spherical cavitation yield stress of
aluminium targets with Ludwik power-hardening response. As part of this analysis we have …

Approximate theory of armour perforation by ductile hole expansion

R Masri, S Ryan - International Journal of Impact Engineering, 2024 - Elsevier
The present study suggests a complete analytical model for armour perforation by ductile
hole enlargement process. The new approximate model is applicable for entry, tunnelling …

Two new penetration models for ballistic clay incorporating strain-hardening, strain-rate and temperature effects

YQ Li, XL Gao, AJ Fournier, SA Sherman - International Journal of …, 2019 - Elsevier
Ballistic clay, such as Roma Plastilina No. 1 (RP# 1) clay, has been used as a standard
backing material in back-face signature (BFS) tests of body armor. Hence, it is important to …

Solution for the dynamic elastically compressible power-law strain hardening cylindrical cavity-expansion problem

TL Warren, J Johnsen, M Kristoffersen… - Journal of Dynamic …, 2023 - Springer
A closed form analytical solution for both the quasi-static or dynamic strain hardening
cylindrical cavity-expansion (CCE) problems requires the plastic region to be …

Ballistic-limit velocities for 7.62 mm APM2 bullets and aluminum alloy armor plates

MJ Forrestal, TL Warren, JK Holmen - Journal of Dynamic Behavior of …, 2021 - Springer
In a previous paper, we presented a scaling law for the ballistic-limit velocity for the 7.62 mm
APM2 bullet and aluminum armor plates. This scaling law predicts that the ballistic-limit …