ISSN:
1741-2765
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The nature of fracture under impulsive loading is examined. It is shown as a consequence to Drucker's stability hypothesis that, under impulsive loading, it is strain rate and not total strain that plays the dominant role in determining fracture criteria. Rinehart and Pearson's criteria for rupture of cylindrical shells, which are consistent with the above, are extended to spherical shells. Experimental program on polystyreneplastic shells of different sizes is reported. Dominant fracture pattern observed was brittle. Also, critical velocity of straining (V cr) was found to be directly proportional to the cube of the diameter of the shell. On the basis of dimensional considerations, it is shown that the shell-wall thickness has no effect upon the number of fragments. The effect of material properties on fracture is also examined.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02327112
Permalink