{"id":1422,"date":"2021-03-12T16:54:07","date_gmt":"2021-03-12T15:54:07","guid":{"rendered":"https:\/\/www.hsu-hh.de\/ft\/?page_id=1422"},"modified":"2021-03-23T18:40:07","modified_gmt":"2021-03-23T17:40:07","slug":"crash-sled-test-facility","status":"publish","type":"page","link":"https:\/\/www.hsu-hh.de\/ft\/en\/laboratory\/component-tests\/crash-components-test-facility\/crash-sled-test-facility","title":{"rendered":"Crash Sled Test Facility"},"content":{"rendered":"\n

The crash sled test facility essentially consists of two rails on which different carriages (sleds) can roll. These carriages are accelerated by up to ten rubber ropes (high-performance bungee ropes) over a distance of approx. 10 m. In the impact area, the carriage can be braked in a targeted manner by a multi-layer and multi-stage bending plate brake, or it is possible to place a test body in the impact area, which is generally irreversibly deformed during the experiment.<\/p>\n\n\n\n

\"Square<\/figure>
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Test Rig Data<\/h3>\n\n\n\n
  • Sled weigth<\/strong> (aluminum and steel slide): 120 kg – 900 kg<\/li>
  • Impact energy<\/strong>: up to 150 kJ <\/li>
  • Impact velocity<\/strong>: up to 20 m\/s <\/li>
  • Impact area<\/strong>: up to 6m3<\/sup><\/li>
  • Measurement technology<\/strong>: Two high-speed cameras, laser-based distance measurement, acceleration sensors up to 1000 g<\/li><\/ul>\n\n\n\n

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    Applications\/Projects<\/h2>\n\n\n\n
    \"Tyre<\/figure>
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    Tyre-Soil-Interaction<\/h2>\n\n\n\n

    Interaction of tyres with deformable soils (here: sand): In this special test setup, the interaction of a tyre with a non-cohesive soil (sand) was investigated. This type of interaction comes into play, for example, when a vehicle skids and slides sideways into the shoulder. The picture shows a tire with the sled behind it (view against the direction of travel).<\/p>\n<\/div><\/div>\n\n\n\n

    \"Crash<\/figure>
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    Spot welds<\/h2>\n\n\n\n

    In several test series, spot welds were investigated with regard to their strength with the help of a small aluminum sled (low energy). A special profile was chosen in order to investigate the welding points with respect to both head pull and shear loads. The picture on the left shows exemplary results from a high-speed video.<\/p>\n<\/div><\/div>\n\n\n\n

    \"Battery<\/figure>
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    Batteries<\/h2>\n\n\n\n

    Investigation of the behaviour of batteries in a crash-like load for the creation of crash battery models. <\/p>\n<\/div><\/div>\n\n\n\n

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