FRACTURE CRITERIA IN ELASTIC AND ELASTIC/PLASTIC SOLIDS

1979 ◽  
pp. 235-246
Author(s):  
A.A. Wells
Keyword(s):  
Fracture Criteria ◽  
Elastic Plastic

On a Study of the Use of the (T˙) Integral in Fracture Analysis of Solids With Inelastic Rate-Constitutive Laws

1982 ◽  
Vol 104 (4) ◽  
pp. 331-337 ◽  
Author(s):  
M. Nakagaki ◽  
S. N. Atluri
Keyword(s):  
Plastic Material ◽  
Compact Tension ◽  
Compact Tension Specimen ◽  
Constitutive Law ◽  
Fracture Criteria ◽  
Elastic Plastic ◽  
Infinitesimal Deformations ◽  
History Of ◽  
Elastic Plastic Material ◽  
Radial Loading

Here, the following topics are discussed: (i) a new integral (ΔT1) of relevance in the presence of cracks in an elastic-plastic material characterized by a rate-independent incremental constitutive law under the assumption of infinitesimal deformations, (ii) the conditions for path-independency of this integral, (iii) the physical meaning of (ΔT1) whether or not it is path-independent, (iv) its relation to J under conditions of radial loading when deformation theory of plasticity may be valid. The features of this new parameter (ΔT1) are brought out in a numerical solution of a compact tension specimen which is subject to a history of (displacement-controlled) loading/unloading/reloading. The implications of the present results in the context of more rational elastic-plastic fracture criteria are briefly discussed.

Elastic-Plastic Fracture Criteria

2012 ◽  
pp. 171-187
Author(s):  
C.T. Sun ◽  
Z.-H. Jin
Keyword(s):  
Fracture Criteria ◽  
Elastic Plastic
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