Q4 [Total 4 marks] The 3-dimensional state of strain at a material point in x, y, z coordinates is given by: Exx Eyx Επ -120 0-150 [ε ] = ε E E 0 0 0 *10-6 xy yy E E. ε -150 0 240 JZ yz (a) Calculate the volumetric strain and the deviatoric strain invariants [1 mark] (b) Calculate the mean stress and the deviatoric stress tensor [1 mark] (c) Write the characteristic equation of strain [1 mark] (d) Write the characteristic equation of stress [1 mark] The material is linear elastic (E=210GPa, v=0.3).

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q4 [Total 4 marks] The 3-dimensional state of strain at a material point in x, y, z
coordinates is given by:
Exx Eyx
Επ
-120
0-150
[ε ] = ε
E
E
0 0
0
*10-6
xy
yy
E
E.
ε
-150 0 240
JZ
yz
(a) Calculate the volumetric strain and the deviatoric strain invariants [1 mark]
(b) Calculate the mean stress and the deviatoric stress tensor [1 mark]
(c) Write the characteristic equation of strain [1 mark]
(d) Write the characteristic equation of stress [1 mark]
The material is linear elastic (E=210GPa, v=0.3).
Transcribed Image Text:Q4 [Total 4 marks] The 3-dimensional state of strain at a material point in x, y, z coordinates is given by: Exx Eyx Επ -120 0-150 [ε ] = ε E E 0 0 0 *10-6 xy yy E E. ε -150 0 240 JZ yz (a) Calculate the volumetric strain and the deviatoric strain invariants [1 mark] (b) Calculate the mean stress and the deviatoric stress tensor [1 mark] (c) Write the characteristic equation of strain [1 mark] (d) Write the characteristic equation of stress [1 mark] The material is linear elastic (E=210GPa, v=0.3).
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