215 Estimation of Elastic-Plastic Fracture Toughness J_ by Small Punch Testing and Finite Element Simulation

2005 ◽  
Vol 2005 (0) ◽  
pp. 115-116
Author(s):  
Hisashi NAKAMOTO ◽  
Toshinori YOKOMAKU
Keyword(s):  
Fracture Toughness ◽  
Finite Element ◽  
Finite Element Simulation ◽  
Small Punch ◽  
Elastic Plastic ◽  
Element Simulation

Finite element simulation of fracture toughness testing of 20MnMoNi55 steel and the effect of loading rate on reference temperature

2020 ◽  
pp. 146442072095667
Author(s):  
Swagatam Paul ◽  
Snehasish Bhattacharjee ◽  
Sanjib Kumar Acharyya ◽  
Prasanta Sahoo
Keyword(s):  
Fracture Toughness ◽  
Finite Element ◽  
Finite Element Simulation ◽  
Loading Rate ◽  
Flow Characteristics ◽  
Material Model ◽  
Compact Tension ◽  
Reference Temperature ◽  
Viscoplastic Material ◽  
Element Simulation

Fracture toughness of ferritic steel in the ductile-to-brittle transition zone is scattered and probabilistic owing to embrittlement. Use of master curve along with the reference temperature ( T0) adopted in ASTM E-1921 is widely accepted for characterization of this embrittlement. Reference temperature is a measure of embrittlement in the temperature scale. Factors affecting fracture toughness like geometry and loading rate are expected to influence the reference temperature. In the present study, the role of the loading rate on the reference temperature for 20MnMoNi55 steel is assessed experimentally using compact tension C(T) and three-point bend (TPB) specimens. Finite element simulation of tests at different loading rates and cryogenic temperature are carried out using a suitable viscoplastic material model that incorporates flow characteristics of the material for varying displacement rates and cryogenic temperatures. Results from simulation studies are compared with experimental ones.

Finite element simulation of the deformation of corrugated food cans during sterilization

1990 ◽  
Vol 25 (1) ◽  
pp. 43-49
Author(s):  
K-Y Yuan ◽  
C-C Liang
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Deformation Behaviour ◽  
Plastic State ◽  
Elastic Plastic ◽  
Element Simulation ◽  
Incremental Formulation ◽  
Typical Food ◽  
Sterilization Process ◽  
Updated Lagrangian

During the sterilization process of a typical food can, the geometric non-linear and elastic-plastic state is confronted. A derived procedure of updated lagrangian incremental formulation is proposed to simulate the deformation behaviour of the food can. The process is illustrated with a real example. Some interesting results can be noted wherein.

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