TEST $1$ IS ON LEFT, TEST $2$ IS ON RIGHT

Use the data recorded from Test $1$ to plot the stress$-$strain response of the LVL block in

the direction of loading. Estimate the value of the grain$-$parallel elastic modulus, E$1$ using

the data and$/$or your plot.

$$ Use the Test $1$ data to estimate the value of Poisson$$s ratio

u $1$

for the grain$-$parallel loading

configuration.

$$ Use the provided results of Test $2$ to plot the stress$-$strain response of the LVL block in

the direction of loading. Estimate the value of the grain$-$perpendicular elastic modulus,

E$2$ using the data and$/$or your plot.

$$ Use the Test $2$ data to estimate the value of Poisson$$s ratio

u $2$

for the grain$-$perpendicular

loading configuration.

$$ Wood is a special type of anisotropic material because the properties in the direction of the

grain are the same throughout the material and the properties in the direction perpendicular to the grain are also the same $($and different from the grain parallel properties$).$ This

type of material is known as an orthotropic material because there are distinct behaviours

in orthogonal directions. If the LVL block tested in the lab exhibits idealized orthotropic

behaviour, then the following ratios should be equal

u $1/$E$1=$

u $2/$E$2$

$(1)$

Does the experimental data demonstrate that the tested LVL block satisfies this assumption? Provide some discussion as to why you think your results agree or disagree with the

theoretical behaviour and$/$or how well your results agree.