ISSN:
0894-9166
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract In the present paper, the new material parameter of ductile fracturev gc with an obvious microscopic physical meaning is emphasized, which can be determined by macroscopic method. The theoretical and experimental background for the criterion of critical void growth ratio is expounded from both macroscopic and microscopic points of view. The relationship between the macroform parameterv gc and microform oneR c /R go of critical void growth ratio is investigated. The engineering experimental procedure for determining the value ofv gc of materials has been recommended. The values ofv gc for some materials with different heat treatments have been estimated. It is found that the parameterv gc can be effectively used for selecting materials and their heat treatments. A modified ASPEF criterion accounting for stress states has been proposed. Related expression of modified ASPEF andv gc has been derived.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02208138
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