A material is loaded elastically under plane stress condition given by the following tensor:
\[\left[ {\begin{array}{*{20}{c}}
1 \\
0
\end{array}\begin{array}{*{20}{c}}
2 \\
1
\end{array}\begin{array}{*{20}{c}}
0 \\
0
\end{array}} \right]\]
The modulus of rigidity is 25 MPa. The maximum elastic engineering strain is
A. 0.48
B. 0.4
C. 0
D. none of these
Answer: Option A
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