Problem $2(15$ Points$)$: $($a$)$ Please explain fundamentally stry models for koaptadinal tensile strength cannot be used for loaginadinal compressive serength B poises? $($Ars wer brighty in $1-2$ sentence$)($b$)$ An clement of a balanced orthotropic lamina is under the state of stress stown in Figure I The properties of the lamina are.E$,=$ E$=70$ GPaGm $=5$ GPa$ $=560$ MPaSy $=25$ MPaUsing the Maximum Strain Citerion, determine whether or aot failure will orcagose the sign convention $-$ compressive stress is negative, and tensile stress is positive $113$ per$(03)150$ MP$50$ MP$($Sibear Stress$)100$ M