How Crash Testing Works

How Crash Testing Works Crash Test Dummy The crash test dummy's job is to simulate a human being during a crash, while collecting data that would not be possible to collect from a human occupant. All frontal crash tests in the United States are conducted using the same type of dummy, the Hybrid III dummy. HEAD Made of aluminium which is covered in rubber to mimic flesh. Inside the dummy's head, there is an accelerometer that measures the acceleration in all three directions NECK (fore-aft, up-down, left-right). The neck contains sensors to detect bending and other tension forces. CHEST Movement sensors are used in the dummy's chest. They measure how much the chest deflects during a crash. ARMS The arms contain no sensors. In a crash, arms flail and, although serious injuries are uncommon, it is difficult to provide worthwhile protection against them. PELVIS The pelvis contains sensors that record if forces may result in fractures or hop-joint problems. LEGS The legs contain sensors that measure how much they bend and if the bones would break. Quick facts on Crash Test Dummies Crash test dummies come in different Japanese company, Sleepypod, have designed and created crash test dogs sizes, and they are referred to by percentile and gender e.g. the 50th percentile male dummy represents the median sized male - it weighs 170 Ibs since 2007. They aim to test the crashworthiness of pet carriers and safety harnesses. (77 kg) and is 70 inches (5 ft 10 inches or 1.78 m) tall. Up to fifty-eight data channels located in all parts of the Hybrid III, from the The most advanced new models of crash test dummies can cost at least head to the ankle, record between $400,000. 30,000 and 35,000 data items in a typical 100-150 millisecond crash. The Different Types of Crash Test Dummies SID (Side Impact Dummy) BioRID The SID family of test dummies has been designed to measure rib, spine, and internal organ effects in side collisions. It also BioRID is a dummy designed to assess the effects of a rear impact. Its primary purpose is to research whiplash, and to aid designers in assesses spine and rib deceleration and developing effective head and compression of the chest cavity. neck restraints. THOR CRABI THOR is an advanced 50th percentile male dummy. The successor of Hybrid III, THOR has a more human-like spine and pelvis, and its CRABI is a child dummy used to evaluate the effectiveness of child restraint devices including seat belts and air bags. There are three models of the CRABI, representing face contains a number of sensors which allow analysis of facial impacts to an accuracy 18-month, 12-month, and 6-month-old currently unobtainable with children. other dummies. How the Crash Test Works Before the crash test researchers apply paint to the crash test dummies. Different colours of paint are applied to the parts of the dummies' bodies most likely to hit during a crash e.g. knees. For a standard 35-mph frontal impact crash test – at 35 mph (56 kph), the car runs straight into a solid concrete barrier. This is equivalent to a car moving at 35 mph hitting another car of comparable weight moving at 35 mph. Following the crash test, researchers will note the different colour paint 3 marks in the car as this indicates what part of the body hit what part of the vehicle inside the cabin. In addition, data recorded via sensors placed throughout the crash test dummy's body will be analysed. The information received will help researchers to develop improvements to prevent certain types of injuries in 4 future crashes. Refrences: http://auto.howstuffworks.com/car-driving-safety/accidents-hazardous-conditions/crash-test1.htm http://en.wikipedia.org/wiki/Crash_test_dummy http://www.madehow.com/Volume-5/Crash-Test-Dummy.html http://www.dailyinspiration.nl/infographic-dissecting-a-crash-test-dummy/ http://www.howmuchisit.org/crash-test-dummy-cost/ http://cenblog.org/artful-science/files/2012/10/Yvonne_- Shashoua_crash_test_dummy1.jpghttp://www.erdgasfahren.ch/fileadmin/customer/erdgas-fahren/Data/Press e/Crashtest/Zafira_Crash_Test.jpg http://image.motortrend.com/f/features/consumer/1305_vol- vo_xc60_iihs_small_overlap_crash_test/44047718/Crash-Testing-face-paint.jpg http://image.motortrend.com/f/features/consumer/1305_vol- vo_xc60_iihs_small_overlap_crash_test/44047646/Crash-Testing-dummy-in-front-seat.jpg IN GEAR DRIVING SCHOOL YOUR FIRST STEP TO PASSING YOUR DRIVING TEST www.ingear.ie