Ammunition penetration studies

The accurate numerical simulation of projectile penetration process is a complex challenge. Experimental investigation of these time-dependent non-linear events is expensive and time-consuming. During penetration process, targets experience severe grid deformation in the region local to the penetrator. Highly distorted elements are removed from the calculation using erosion strain algorithm.
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Terminal Ballistics

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Terminal Ballistics - Hornady Manufacturing, Inc

Stopping power is the ability of a firearm or other weapon to cause a target human or animal to be incapacitated, and thus stop the target. This contrasts with lethality in that stopping power pertains only to a weapon's ability to incapacitate quickly, regardless of whether or not death ultimately occurs. Which gun cartridges have the greatest stopping power is a strongly debated topic. Stopping power is related to the physical properties of the bullet , the biology of the target, and the shot location, but the issue is complicated and not easily studied. Although higher caliber has traditionally been widely associated with higher stopping power, the physics involved are multifactorial, with caliber, muzzle velocity , bullet mass , bullet shape, and bullet material all contributing. Critics contend that the importance of "one-shot stop" statistics is overstated, pointing out that most gun encounters do not involve a "shoot once and see how the target reacts" situation. Stopping power is usually caused not by the force of the bullet but by the damaging effects of the bullet, which are typically a loss of blood , and with it, blood pressure.
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The use of gelatine in wound ballistics research

Terminal ballistics is in many cases, the least considered aspect of ballistics when determining the kind of bullet to use for a specific purpose. Yet, it's an important process to understand if you want to achieve optimal results. Terminal ballistics is the study of how a projectile behaves when it hits its target and transfers its kinetic energy to the target. Also known as wound ballistics, terminal ballistics is important to hunters because it illustrates how a particular bullet will transfer its potential energy when it strikes the target.
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Blocks of gelatine are used in both lethality and survivability studies for broadly the same reason, i. The gelatine is used to visualise the temporary and permanent wound profiles; elements of which are recognised as providing a reasonable approximation to wounding in humans. One set of researchers aim to improve the lethality of the projectile, and the other to understand the effects of the projectile on the body to improve survivability.
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