DYNAMIC FINITE-ELEMENT ANALYSIS OF 3RD SIZE CHARPY SPECIMENS OF V-4CR-4TI

A 2-D finite element analysis (FEA) of precracked, one-third-scale CVN specimens of V-4Cr-4Ti was performed to investigate the sensitivity o f model results to key material parameters such as yield strength, fai lure strain and work hardening characteristics. Calculations were carr ied out at temperatures of -196 degrees C and 50 degrees C. Dynamic FE As were performed using ABAQUS/Explicit v5.4. Finite element results a re compared to experimental Charpy results from the production-scale h eat of V-4Cr-4Ti (Heat #832665) as a benchmark. Agreement between the finite element model and the experimental data was very good at -196 d egrees C, whereas at 50 degrees C the model predicted an absorbed ener gy slightly below the experimental value. (C) 1998 Elsevier Science B. V. All rights reserved.