PSI - Issue 17

Pranav S. Patwardhan et al. / Procedia Structural Integrity 17 (2019) 750–757 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

5

754

0 100 200 300 400 500 600

0 100 200 300 400 500 600 700 800

(e)

(f)

AISI 1095 Koepke et al (1971)

 p-L = 0.0023

AISI 1020 Koepke et al (1971)

 p-L = 0.0052

Experimental Ramberg-Osgood fit Estimated

Experimental Ramberg-Osgood fit Estimated

True stress, MPa

True stress, MPa

0

0.05

0.1

0.15

0

0.05

0.1

0.15

True strain

True strain

0 100 200 300 400 500 600 700 800

100 150 200 250 300 350 400 450

(g)

(h)

 p-L = 0.0103

AISI 1015 Metall. Trans. (1972) Experimental Ramberg-Osgood fit Estimated

AISI 1040 Koepke et al (1971) Experimental Ramberg-Osgood fit Estimated

 p-L = 0.00277

0 50

True stress, MPa

True stress, MPa

0

0.01

0.02

0.03

0.04

0

0.05

0.1

0.15

True strain

True strain

1,000 1,200 1,400 1,600 1,800

1000 1200

(i)

(j)

 p-L = 0.0085

0 200 400 600 800

 p-L = 0.005

4140 Cr-Mo Thielen et al (1976) Experimental Ramberg-Osgood fit Estimated

AISI 4340 Fitzgibbon (1959)

0 200 400 600 800

Experimental Ramberg-Osgood fit Estimated

True Stress,MPa

True stress, MPa

0

0.02

0.04

0.06

0.08

0

0.01 0.02 0.03 0.04

True Strain

True strain

Fig. 4. (Cont.)