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\section{Results}  Two stem and crown profiles were investigated. An open grown stem, assumed to have no light competition, at a stocking rate of one stem per hectare and a stem under competition at a stocking rate of 741 stems per hectare. Stems grown in the open tend to produce a lower taper and a wider crown which protrudes further to the base of the stem. The open grown stem and crown dimensions are extrapolated from measurements reported by Waghorn et al. (2007a). These dimensions represent architecture for a stem grown at a stocking rate of 741 stems per hectare. The stocking rate of 741 stems per hectare was chosen as it is the stocking rate used to estimate crown density --by ref-- and it falls within the bounds of the data from Waghorn et al. (2007a).  In order to ensure that the values being presented were realistic Equations --3.22 and 3.21--- from Papesch et al. (1997) were solved with \(h = 15\) resulting in a maximum bending moment of \(42 MP_a\) at a deflection of \(13\) degrees. Solving the equations presented in ---Section 3.2.5-- with wind speed \(\omega\) as the unknown, the wind speed at maximum bending moment (\(42 MP_a\)) was calculated to be \(15.5 m/s\). From these equations and the assumption that the maximum bending moment will occur at the lowest wind speed needed to surpass the proportional limit it is seen that at a stocking rate of 741 stems per hectare the FEM model predicts the stem with the radial profile LW \(LW  \rightarrow HS HS\)  will fail at approximately \(16 m/s\), however the deflection angle is approximately \(21\) degrees at this point. The radial profiles at a stocking rate of \(741\) stems per hectare fall on either side of the \(13\) degree deflection at \(15.5 m/s\) wind speed from Papesch et al. (1997). Open grown stems withstand higher wind speeds, however they break at lower deflection angles than stems at a stocking of \(741\). Open grown stems also fail at higher and lower wind speeds and deflections than the predictions from Papesch et al. (1997), with the radial profiles performing in a similar order as for the higher stocking rate. If growth stresses are not considered a reduction in the wind speeds to below the predicted value of \(15.5 m/s\) is observed, for both stocking rates. The deflection angle at first failure is also reduced with radial profile \(LW \rightarrow HS\) to approximately \(14\) degrees (from \(21\) degrees). Radial profiles fall on either side of the prediction of \(13\) degrees from Papesch et al. (1997). The stress profiles within the stems are fairly consistent regardless of the TRP used. All profiles show compression in the longitudinal direction and slight stresses in the other directions, when growth stresses are not considered. As the wind load increases, tension stresses start to become visible in the longitudinal direction on the windward side of the stem, along with compressive stresses on the leeward side. The largest of these appearing in the bottom third of the stem, with little appearing at the top. The longitudinal-tangential and longitudinal-radial shear planes also develop significant stresses, with the maximum magnitude usually occurring at similar heights in the stem as longitudinal stresses, as can be seen in Figure --3.6--. Stress distributions within the stem don’t indicate points of failure because of the relationship between material directions, the change in strength with material direction and the change in strength of the material as the TRP evolves. To visualise when and where failure occurs Equations --3.39 and 3.38-- were solved at each point in order to give a safety factor, with a value of less than one being before the point of failure and greater than one being after failure. Figure --3.7--- indicates that once a point breaks proportionality in one direction the same is likely to occur in other directions soon after. Typically failure occurs on the leeward side of the stem in the bottom half in multiple directions at a similar time. A horizontal slice is also taken through the stem at a height of \(3 m\). The longitudinal stresses again dominate, being in compression from self weight at zero wind, as the wind increases the progression of tensile stresses from the windward side is visible moving from the outer edge of the stem toward the centre. The increase in compression at the leeward side of the stem is also visible following the same trend. Shear and normal stresses both increase with increasing wind speed, and the propagation can be seen in Figure --3.8--. Failure is also evident in the cross section shown in Figure --3.9--. Note the longitudinal-tangential and longitudinal-radial shear planes show slightly lower stresses in the centre of the stem than at the periphery the reason for this is unknown. These patterns vary but are typical for all TRPs, ages and stocking rates investigated.