MATERIAL TESTING AS AN AID IN ANALYZING SOURCES AND CAUSES OF ACCIDENTS

DIE BEDEUTUNG DER MATERIALPRUFUNG FUR DIE UNFALLURSCHENERMITTLUNG BEI KRAFTFAHRZEUGEN

Material testing covers a wide field, which also encompasses the examination of reasons for the failure or fracture of vehicle components. Various methods are employed, among them macroscopic and microscopic exposures of the fracture area, metallographical examinations, mechanical and chemical tests as well as nondestructure material tests. The appearance and geometry of fractures frequently offers conclusive information on the nature of the fracture, on the type and magnitude of the stresses the parts had been exposed to and on possible material defects. Data on the macroscopic plastic deformation will in most cases disclose the nature of the fracture (forced or fatigue fracture). Of considerable consequence is the question of crack propagation, i.e. the timing of the onsetting fatigue fracture. In this case the situation is vastly complicated if the parts have been exposed to alternating stresses. Macro and micro exposures of fractures are shown.

  • Corporate Authors:

    Vogel-Verl

    8700 Wuerzburg, Max-Plarck-Str 709,   Germany 
  • Authors:
    • Hickel, F
  • Publication Date: 1975-11

Language

  • German

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00132008
  • Record Type: Publication
  • Source Agency: Highway Safety Research Institute
  • Files: TRIS
  • Created Date: Jun 5 1976 12:00AM