Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
829970 | Materials & Design (1980-2015) | 2013 | 11 Pages |
•Cryogenic (−163 °C) fracture toughness value of SUS304L was investigated.•It was revealed that important results of fracture toughness tests can be obtained numerically.•A systematic approach to perform computational fracture toughness test was proposed.
A computational method for evaluating the resistance of fracture capacity of austenitic stainless steel (SUS304L) under ambient and cryogenic temperatures was proposed in the present study. To do this, a unified elasto-viscoplastic-damage model which can take into consideration the material nonlinearity under cryogenic temperature was adopted and implicitly formulated. In addition, the developed model is implemented into ABAQUS as a type of user-defined material subroutine UMAT. In order to verify the proposed method, the simulation results of resistance of fracture capacity are compared to a series of crack tests such as double-edge-cracked and center-cracked tension tests of SUS304L plates under ambient and cryogenic temperatures. Namely, the relationships between force and displac