Perforation of AA5083-H116 aluminium plates with conical-nose steel projectiles—experimental study

A comprehensive account of the physical foundations of collision and impact phenomena and their applications in a multitude of engineering disciplines. In-depth explanations are included to reveal the unifying features of collision phenomena in both liquids and solids, and to apply them to disciplines including theoretical and applied mechanics, physics and applied mathematics, materials science, aerospace, mechanical and chemical engineering, and terminal ballistics. Covering a range of examples from drops, jets, and sprays, to seaplanes and ballistic projectiles, and detailing a variety of theoretical, numerical, and experimental tools that can be used in developing new models and approaches, this is an ideal resource for students, researchers, and practicing engineers alike.

Collision phenomena in liquids and solids

Experimental and numerical study on the perforation of AA6005-T6 panels

We present a fundamental investigation of the influence of material and structural parameters on the mechanics of fragmentation of brittle materials. First, we conduct a theoretical analysis (similar to Drugan’s single wave problem, Drugan, W.J. (2001), Journal of Mechanical and Physics Solids
 49, 1181–1208.) and obtain closed form solutions for a problem coupling stress wave propagation and single cohesive crack growth. Expressions for a characteristic fragment size s
 0 and a characteristic strain-rate $${\dot\varepsilon}_0$$
 are given. Next, we use a numerical approach to analyze a realistic fragmentation process that involves multiple crack interactions. The average fragment size s is calculated for a wide variety of strain-rates $${\dot \varepsilon}$$
 and a broad range of material parameters. Finally, we derive an empirical function that relates the normalized fragment size s/s
 0 to the normalized strain-rate $${\dot \varepsilon}/\dot{\varepsilon}_0$$
 and that fits all of the numerical results with a single master curve.

Effects of material properties on the fragmentation of brittle materials

http://www.ciar.org/ttk/mbt/papers/ijie01/ijie_25_993.pdf

K. Weber

Papers

Oblique penetration of a rigid projectile into a thick elastic–plastic target: theory and experiment

Model for ballistic fragmentation and behind-armor debris