Identificatoin of Dynamic Behavior of Sheet Metals for an Auto-body with Tension Split Hopkinson Bar

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 533
  • Download : 161
In order to evaluate the crash-worthiness of a car, the dynamic response of the car body has to be correctly obtained at each level of car velocity. For the dynamic analysis, the dynamic properties of auto-body materials need to be identified for various strain rates. One of the typical high strain rate tensile tests is a split Hopkinson bar test. The present experiment has been carried out with a new split Hopkinson bar apparatus specially designed for the dynamic tensile test of sheet metals. The experiment provides stress-strain curves for various strain rates ranged from 2500 to 5000/sec. The experimental results from the both quasi-static and dynamic test are used to construct the Johnson-Cook equation as a constitutive relation, which can be applied to simulate the dynamic behavior of auto-body structures.
Publisher
SAE
Issue Date
1998-02-23
Description

1998 SAE Int. Congress, Detroit, U.S.A., pp.115~120, 1998.

Citation

1998 SAE Int. Congress, Detroit, U.S.A., pp.115~120, 1998.

ISSN
0148-7191
URI
http://hdl.handle.net/10203/5939
Appears in Collection
ME-Conference Papers(학술회의논문)

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0