The void growth model parameter for Modified 9Cr-1Mo steel has been identified based U-notched tensile tests, scanning electron microscopy study on fracture surface and parallel 3D FEM simulations. Damage Index (DI) symptomatic of Rice-Tracy VGM parameter at a large number of sampling points in micro void coalescence zone is calculated for increase in applied loads. The calculated DI has been calibrated with experiments on specimens with through wall central notches oriented at different angle to loading axis. © 2017 ICF 2017 - 14th International Conference on Fracture. All rights reserved.

C. Lakshmana Rao

Department of Applied Mechanics

Binary alloys

Chromium alloys

CHROMIUM STEEL

Damage detection

Ductile fracture

Metal testing

Molybdenum alloys

Scanning electron microscopy

Tensile strength

Tensile testing

Uranium alloys

3D-FEM SIMULATIONS

Applied loads

Damage index

Fracture surfaces

INTERMEDIATE STRESS

modified 9Cr-1Mo steel

SAMPLING POINTS

THROUGH WALLS

MOLYBDENUM STEEL

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IIT Madras

ICF 2017 - 14th International Conference on Fracture

Prediction of ductile fracture in modified 9Cr-1Mo steel at intermediate stress triaxiality using void growth model

Journal	ICF 2017 - 14th International Conference on Fracture
Publisher	International Conference on Fracture
Open Access	No