A hand grenade cartridge and separation of the projectile body tension tests

The solution

MultiTest 25 - I double column mechanics test system software control
Custom clamping fixtures

advantage

Flexible programming ability, can achieve a variety of different test methods
Repeatability test, to ensure the accuracy of the data

Test requirements

In the process of manufacturing of grenades, will the projectile body into the cartridge, and or pressure to seal.Of the projectile body "neck" with natural tensile properties, but the pressure sealing/part must effectively maintain the projectile body in a fixed position.The projectile body and the minimum force required to cartridge separation is one of the many factors that affect the performance of ammunition.If do not match the attached/friction around the ammunition, such changes usually will translate into irregular ballistic and ejection forms.Repeatability is the key to the test, so the ballistics engineer worked hard to produce a reliable and consistent quality of ammunition.

When grenades tensile test, dangerous scattered powder and potential safety hazard, and at the same time cannot properly clamping head cartridge.When testing tension over 6 kN, the custom fixture must be able to the cartridge and the projectile body fixed on the top and bottom respectively.

The solution

BOB体育最新下载安装Mecmesin provides a complete set of tensile test system, Emperor ™ software real-time display mechanics curve, and calculate the two tensile peak, namely from the peak force of projectile body from its base, and the projectile body peak force and the complete separation of cartridge.Test report include the information of the separation point displacement.

Special research and development of custom fixture ammunition firmly fixed in position, make sure it won't skid exert maximum of 6 kN load.At the bottom of the projectile body C shape at the edge of the fixed in a slot fixtures, cartridge is fixed at the bottom of the tensile tester.The projectile body consists of two semicircular fixed jaw, and mechanical sensor is connected to the tensile tester.At a constant velocity tensile test, to ensure the best result repeatability.

Tensile tester software will test the most energetically recorded as "grenades tensile strength".The same set of test system fitted with clamp, but also can measure the projectile body and cartridge compression force.