NDLI: Steel Shell Bodies - High Explosive Squash Head

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Steel Shell Bodies - High Explosive Squash Head

Content Provider	Scilit
Author	Doig, Alistair
Copyright Year	2020
Description	The 'high explosive squash head' (HESH) shell is filled with an explosive charge, which is initiated on impact by an inertia fuse fitted in the rear. The HESH shell is absolutely devastating against concrete targets, since although reasonably strong in compression concrete is weak in tension. HESH is a way of defeating tank armour without actually penetrating it and regardless of its thickness. The tensile stress acting on the wall of a shell body during launch is called the setback stress. The production process of hot rolling steel (or aluminium alloy) armour plates causes longitudinal alignment of non-metallic inclusions together with microsegregation banding, and these lamellar weaknesses assist scab detachment. The quenched and tempered steel is tougher than the air cooled steel, because its fracture path via the temper carbides is microscopically rougher. Quenching a plain carbon or low alloy steel from around 850°C allows insufficient time for iron carbide to form during cooldown. Book Name: Military Metallurgy
Related Links	https://content.taylorfrancis.com/books/download?dac=C2016-0-26503-7&isbn=9781003059400&doi=10.1201/9781003059400-3&format=pdf
Ending Page	34
Page Count	4
Starting Page	31
DOI	10.1201/9781003059400-3
Language	English
Publisher	Informa UK Limited
Publisher Date	2020-11-23
Access Restriction	Open
Subject Keyword	Book Name: Military Metallurgy Applied Chemistry Stress Concrete Carbides Head Steel Explosive Quenched Armour Squash Hesh
Content Type	Text
Resource Type	Chapter

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