INFLUENCE OF INERTIAL LOAD IN INSTRUMENTED IMPACT TESTS

The effect of inertial loading in instrumented impact tests has been studied, and it is shown that during such tests large errors can be made in calculating the bending stress of a specimen at fracture if inertial loading is not taken into account. By instrumenting the tup, anvil, and specimen it is shown that in the period over which inertial effects occur, there is no simple relationship between the load measured on the tup, anvil, and specimen. To assist in interpretation and evaluation of impact load-time curves a model has been used which relates the spring constants and masses of the tup and anvil of the test machine and specimen to the frequency, phase, and relative amplitude of the oscillations occurring in the impact test.

• Corporate Authors:

  American Society for Testing and Materials (ASTM)

  100 Barr Harbor Drive, P.O. Box C700
  West Conshohocken, PA  United States  19428-2957
• Authors:
  • Priest, A H
  • May, M J
• Publication Date: 1970-3

Media Info

• Pagination: p. 165-80
• Serial:
  • Impact Testing of Metals
  • Publisher: American Society for Testing and Materials (ASTM)

Subject/Index Terms

• TRT Terms: Crash tests; Fracture tests; Impact loads; Inertia (Mechanics); Inertial forces
• Subject Areas: Marine Transportation; Materials; Research;

Filing Info

• Accession Number: 00019170
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Spec Tech Publ 466
• Files: TRIS
• Created Date: Nov 8 1971 12:00AM