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research-article

Variation of Beremin Model parameters with temperature by Monte Carlo Simulation

[+] Author and Article Information
Kushal Bhattacharyya

Department of Mechanical Engineering Jadavpur University, 188, Raja S. C. Mallick Road, Kolkata, West Bengal 700032, India
bhattacharyyakushal3@gmail.com

Sanjib Acharyya

Department of Mechanical Engineering Jadavpur University, 188, Raja S. C. Mallick Road, Kolkata, West Bengal 700032, India
sanjibacharyya24@gmail.com

Sankar Dhar

Department of Mechanical Engineering Jadavpur University, 188, Raja S. C. Mallick Road, Kolkata, West Bengal 700032, India
sankar_dhar1@rediffmail.com

Jayanta Chattopadhyay

Reactor Safety Division, Bhabha Atomic Research Centre, Mumbai - 400085, India
jchatt@barc.gov.in

1Corresponding author.

ASME doi:10.1115/1.4042121 History: Received May 07, 2018; Revised November 17, 2018

Abstract

In this work variation of the Beremin parameters with temperature for RPV material 20MnMoNi55 steel is studied. Modified Beremin model is used where; strain correction is imposed in the Beremin model formulation. A set of six numbers of tests are performed at a temperature of -110°C in order to determine Reference Temperature (T0) and Master Curve for the entire DBT region as per the ASTM Standard E1921. Monte Carlo simulation is employed to produce a large number of 1T TPB (Three Point Bending specimen) fracture toughness data randomly drawn from the scatter band obtained from the Master curve, at different temperatures of interest in the brittle dominated portion of DBT region to determine Beremin model parameters variation with temperatures

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