Question

Note: [If not stated in the question, use E = 200 GPa, v = 0.3] QUESTION Q1 CLO1: Q1(A) Figure 1 shows a typical stress strain curve of an elastic-plastic material. The material data is given in Table 1: Table 1 Material A Material B Strain (absolute units) Stress (MPa) Stress (MPa) 0 0 0 0.0001 21 15 0.0002 42 30 0.0003 63 45 0.0004 84 60 0.0005 105 75 0.0006 126 90 0.0007 147 105 0.0008 168 120 0.0009 189 135 0.001 200 150 0.002 210 300 0.022 250 0.042 267 0.062 280 0.082 289 0.102 295 0.122 300 0.142 290 0.162 250 Page 3 of 12 May-August 2020 On-Line Final Examination BEM2047 Solid Mechanics EM317 Stress Analysis and Design STRESS IN MPa 350 300 MATERIAL A MATERIAL B 250 200 150 100 50 0 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 STRAIN Figure 1

          Note:
[If not stated in the question, use E = 200 GPa, v = 0.3]
QUESTION Q1 CLO1:
Q1(A) Figure 1 shows a typical stress strain curve of an elastic-plastic material. The material
data is given in Table 1:
Table 1
Material A	Material B
Strain
(absolute
units)	Stress (MPa)	Stress
(MPa)
0	0	0
0.0001	21	15
0.0002	42	30
0.0003	63	45
0.0004	84	60
0.0005	105	75
0.0006	126	90
0.0007	147	105
0.0008	168	120
0.0009	189	135
0.001	200	150
0.002	210	300
0.022	250	
0.042	267	
0.062	280	
0.082	289	
0.102	295	
0.122	300	
0.142	290	
0.162	250	
Page 3 of 12
May-August 2020	On-Line Final Examination	BEM2047 Solid Mechanics
EM317 Stress Analysis and Design
STRESS IN MPa
350
300
MATERIAL A
MATERIAL B
250
200
150
100
50
0
0	0.02	0.04	0.06	0.08	0.1	0.12	0.14	0.16	0.18
STRAIN
Figure 1

Note:
[If not stated in the question, use E = 200 GPa, v = 0.3]
QUESTION Q1 CLO1:
Q1(A) Figure 1 shows a typical stress strain curve of an elastic-plastic material. The material
data is given in Table 1:
Table 1
Material A Material B
Strain
(absolute
units) Stress (MPa) Stress
(MPa)
0 0 0
0.0001 21 15
0.0002 42 30
0.0003 63 45
0.0004 84 60
0.0005 105 75
0.0006 126 90
0.0007 147 105
0.0008 168 120
0.0009 189 135
0.001 200 150
0.002 210 300
0.022 250
0.042 267
0.062 280
0.082 289
0.102 295
0.122 300
0.142 290
0.162 250
Page 3 of 12
May-August 2020 On-Line Final Examination BEM2047 Solid Mechanics
EM317 Stress Analysis and Design
STRESS IN MPa
350
300
MATERIAL A
MATERIAL B
250
200
150
100
50
0
0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18
STRAIN
Figure 1

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