COMPOSITE TEST PROCEDURE (CTP) STATE OF THE ART. IN: LEGISLATIVE PROPOSALS FOR CAR OCCUPANT PROTECTION IN LATERAL IMPACT. IMECHE AUTOMOBILE DIVISION INTERNATIONAL SEMINAR HELD AT THE INSTITUTION OF MECHANICAL ENGINEERS, LONDON, APRIL 28, 1989

In 1988, the European car manufacturers represented by the committee of Common Market Constructors (CCMC), decided to promote an alternative method to full-scale side impact testing. Since this alternative method is a combination of testing and computer evaluation, it is called COMPOSITE TEST PROCEDURE (CTP). It was presented at the meeting with the EC Commission and Government representatives and the CCMC Car Technical Commission in Brussels on 28 April 1988. A major advantage of the CTP over the current full-scale tests is that with the CTP there is no need for a mechanical dummy. In the CTP, occupant loading is evaluated by means of a mathematical "dummy". Since the properties of a mathematical dummy are free of scatter, the repeatability of the CTP promises to be superior to that of the full-scale test. Mechanical dummies considered thus far for use in full-scale tests have proved unsatisfactory in terms of biomechanical response. CCMC therefore believes that a mathematical occupant is better suited to provide humanlike behaviour. In order to achieve this goal, a more sophisticated occupant model is being implemented in the CTP. Although the CTP's ultimate goal is humanlike response, it has to be demonstrated that the CTP can produce results equivalent to those obtained in dynamic tests with a physical dummy. This can be done by comparing the full-scale test results to the equivalent CTP results. A very recent development of the CTP is the COMPUTER CONTROLLED CTP (CC-CTP). This approach not only represents the full-scale test better but also simplifies the whole test procedure. This paper describes the CTP's state of advancement and how the CC-CTP works. For the covering abstract see IRRD 837485. (Author/TRRL)

  • Corporate Authors:

    Institution of Mechanical Engineers

    1 Birdcage Walk
    London SW1H 9JJ,   England 
  • Authors:
    • RICHTER, B
  • Publication Date: 1989

Language

  • English

Media Info

  • Pagination: 29 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00623895
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jul 31 1992 12:00AM