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\chapter{Static Axisymmetric Rod}
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\chapter{Static Axisymmetric Rod}\label{cha:simulation}
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\label{cha:simulation}
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see appendix~\ref{apx:pub4}
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see appendix~\ref{apx:pub4}
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@ -93,8 +92,8 @@ lists a table of references to individual models and in which order to execute t
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\begin{tabular}{llll}
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\begin{tabular}{llll}
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\textbf{\#number} & \textbf{electromagnetic} & \textbf{thermal} & \textbf{mechanical} \\
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\textbf{\#number} & \textbf{electromagnetic} & \textbf{thermal} & \textbf{mechanical} \\
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100 & crank\_induction & crank\_heating \\
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100 & crank\_induction & crank\_heating \\
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1 & -- & crank\_quench \\
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1 & --- & crank\_quench \\
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-- & -- & -- & crank\_stress
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--- & --- & --- & crank\_stress
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\end{tabular}
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\end{tabular}
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\end{center}
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\end{center}
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@ -215,7 +214,14 @@ A {\ttfamily*VISCO} calculation then takes that thermal result as a volumetric t
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\section{Results}
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\section{Results}
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The results obtained by the thermal approximation were
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Two of methods shall be presented to vizualize the simulated induction heating process:
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Areal stress distribution along the \ang{0} plane of the crankshaft as defined in section~\ref{sec:residual_stresses}.
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Stress distributions after heating (and thus, austenitization) are compared with those after quenching and subsequent air-cooling in figure~\ref{fig:plate-stress-distro}.
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After the heating time decribed in figure~\ref{fig:thermal-approx-curve} the zones of full austenitization and transition can be seen in all the left hand figures, but figure~\ref{fig:plate-stress-distro-ht} shows the austenitized zone as a compressive area.
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Quenching introduces higher compressive and tensile stresses, especially in the axial direction (fig.~\ref{fig:plate-stress-distro-qa}).
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The mechanisms of the stress evoltion can are examined in figures~\ref{fig:time_data_ax_h}--\ref{fig:time_data_tan_q}
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\begin{figure}[p]
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\begin{figure}[p]
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@ -223,12 +229,12 @@ The results obtained by the thermal approximation were
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\begin{tabular}{cc}
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\begin{tabular}{cc}
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\subfloat[Radial Stresses after heating]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-heating-S-Rad.png}} &
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\subfloat[Radial Stresses after heating]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-heating-S-Rad.png}} &
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\subfloat[Radial Stresses after quenching]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-aircool-S-Rad.png}} \\
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\subfloat[Radial Stresses after quenching]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-aircool-S-Rad.png}} \\
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\subfloat[Tangential Stresses after heating]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-heating-S-Tan.png}} &
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\subfloat[Tangential Stresses after heating\label{fig:plate-stress-distro-ht}]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-heating-S-Tan.png}} &
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\subfloat[Tangential Stresses after quenching]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-aircool-S-Tan.png}} \\
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\subfloat[Tangential Stresses after quenching]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-aircool-S-Tan.png}} \\
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\subfloat[Axial Stresses after heating]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-heating-S-Axi.png}} &
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\subfloat[Axial Stresses after heating]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-heating-S-Axi.png}} &
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\subfloat[Axial Stresses after quenching]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-aircool-S-Axi.png}}
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\subfloat[Axial Stresses after quenching\label{fig:plate-stress-distro-qa}]{\includegraphics[width = 0.45\linewidth]{Abbildungen/kw-th-aircool-S-Axi.png}}
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\end{tabular}
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\end{tabular}
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\caption[Stress component distribuiton of crankshaft.]{Sectional views of stress component distributions before and after quenching. It must be noted that the image scales of \textbf{(a)}, \textbf{(c)},and \textbf{(e)} are equalized but reduced by a factor 3 to those of \textbf{(b)}, \textbf{(d)}, and \textbf{(f)}.}\label{fig:plate-stress-distro}
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\caption[Stress component distribuiton of crankshaft.]{Sectional views of stress component distributions before and after quenching. It must be noted that the image scales of \textbf{(a)}, \textbf{(c)},and \textbf{(e)} are equalized but their minimum and maximum values differ to those of \textbf{(b)}, \textbf{(d)}, and \textbf{(f)}.}\label{fig:plate-stress-distro}
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\end{figure}
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\end{figure}
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\begin{figure}[htbp]
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\begin{figure}[htbp]
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@ -89,7 +89,7 @@ Some microscope analysis was also done on sample plates cut from rod samples, bu
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\subsection*{Sample Preparation}
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\subsection*{Sample Preparation}
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\subsection*{Results}
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\subsection*{Results}
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\section{Residual Stresses and Austenite}
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\section{Residual Stresses and Austenite}\label{sec:residual_stresses}
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As explained in section~\ref{sec:sota_residual_stress}, measuring internal residual stresses of three-dimensional parts is always full of compromise.
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As explained in section~\ref{sec:sota_residual_stress}, measuring internal residual stresses of three-dimensional parts is always full of compromise.
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For this thesis, a high spatial resolution of data points was accomplished by machining sample plates from the heat treated parts that could be examined through \acrshort{hexrd} at the particle accelerator at DESY, Hamburg.
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For this thesis, a high spatial resolution of data points was accomplished by machining sample plates from the heat treated parts that could be examined through \acrshort{hexrd} at the particle accelerator at DESY, Hamburg.
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@ -28,7 +28,10 @@
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- [] Figures
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- [] Figures
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- [X] Short captions for Index
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- [X] Short captions for Index
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- [] Unify Captions
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- [] Unify Captions
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- [] Check that all Images are labeled in english!
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- [] Spellchack!!
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- [] Style
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- [] Style
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- [] Cpatialize references or no?
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- [] Capitalize references or no?
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- [] chack all dashes ?
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- [] chack all dashes ?
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