<table cellspacing="0" cellpadding="0" border="0"> <tr><td height="14"></td></tr> <tr align="center" valign="middle"> <td width="208"><a href="pages/page_31.html"><img src="thumbnails/s31.jpg" width="180" height="102" border="0" hspace="14" vspace="0" alt="Bifurcation buckling modes for 3 and 7 cell axially compressed "honeycomb" arrays of cylindrical shells"></a></td> <td width="208"><a href="pages/page_32.html"><img src="thumbnails/s32.jpg" width="180" height="139" border="0" hspace="14" vspace="0" alt="Dynamic axial crushing of 3 and 7 cell "honeycomb" arrays of cylindrical shells"></a></td> <td width="208"><a href="pages/page_33.html"><img src="thumbnails/s33.jpg" width="180" height="152" border="0" hspace="14" vspace="0" alt="In-plane crushing of complex honeycomb structures"></a></td> <td width="208"><a href="pages/page_34.html"><img src="thumbnails/s34.jpg" width="180" height="150" border="0" hspace="14" vspace="0" alt="Out-of-plane crushing of a complex honeycomb structure"></a></td> <td width="208"><a href="pages/page_35.html"><img src="thumbnails/s35.jpg" width="180" height="86" border="0" hspace="14" vspace="0" alt="Out-of-plane crushing of complex honeycomb structures"></a></td> </tr> <tr><td height="5"></td></tr> <tr align="center" valign="top"> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">Bifurcation buckling modes for 3 and 7 cell axially compressed "honeycomb" arrays of cylindrical shells</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">Dynamic axial crushing of 3 and 7 cell "honeycomb" arrays of cylindrical shells</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">In-plane crushing of complex honeycomb structures</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">Out-of-plane crushing of a complex honeycomb structure</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">Out-of-plane crushing of complex honeycomb structures</small></td></tr></table></td> </tr> <tr><td height="14"></td></tr> <tr><td height="14"></td></tr> <tr align="center" valign="middle"> <td width="208"><a href="pages/page_36.html"><img src="thumbnails/s36.jpg" width="180" height="120" border="0" hspace="14" vspace="0" alt="Crushing of obliquily loaded multi-cellular column"></a></td> <td width="208"><a href="pages/page_37.html"><img src="thumbnails/s37.jpg" width="180" height="108" border="0" hspace="14" vspace="0" alt="One of the crushed specimens: (left) test specimen, (right) simulation"></a></td> <td width="208"><a href="pages/page_38.html"><img src="thumbnails/s38.jpg" width="180" height="120" border="0" hspace="14" vspace="0" alt="Crushing accelerations from test and finite element model"></a></td> <td width="208"><a href="pages/page_39.html"><img src="thumbnails/s39.jpg" width="180" height="141" border="0" hspace="14" vspace="0" alt="Some parts of a rocket that can buckle (DESICOS workshop: new robust DESign guideline for Imperfection sensitive COmposite launcher Structures)"></a></td> <td width="208"><a href="pages/page_40.html"><img src="thumbnails/s40.jpg" width="180" height="135" border="0" hspace="14" vspace="0" alt="December 2014: NASA Super Guppy with Allen Waters in foreground"></a></td> </tr> <tr><td height="5"></td></tr> <tr align="center" valign="top"> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">Crushing of obliquily loaded multi-cellular column</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">One of the crushed specimens: (left) test specimen, (right) simulation</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">Crushing accelerations from test and finite element model</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">Some parts of a rocket that can buckle (DESICOS workshop: new robust DESign guideline for Imperfection sensitive COmposite launcher Structures)</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">December 2014: NASA Super Guppy with Allen Waters in foreground</small></td></tr></table></td> </tr> <tr><td height="14"></td></tr> <tr><td height="14"></td></tr> <tr align="center" valign="middle"> <td width="208"><a href="pages/page_41.html"><img src="thumbnails/s41.jpg" width="179" height="111" border="0" hspace="14" vspace="0" alt="ABAQUS finite element model of one "hinge" region of a foldable/deployable rod"></a></td> <td width="208"><a href="pages/page_42.html"><img src="thumbnails/s42.jpg" width="180" height="142" border="0" hspace="14" vspace="0" alt="Static, highly nonlinear moment-rotation behavior of a long, shallow, free-edged, cylindrical shell sector (tape measure) being bent longitudinally in two opposite directions"></a></td> <td width="208"><a href="pages/page_43.html"><img src="thumbnails/s43.jpg" width="105" height="180" border="0" hspace="14" vspace="0" alt="Stages of simulation of folding of two "rigid" short rods connected by a "hinge" such as that shown two slides ago"></a></td> <td width="208"><a href="pages/page_44.html"><img src="thumbnails/s44.jpg" width="124" height="180" border="0" hspace="14" vspace="0" alt="Static test (black) and prediction (green): comparison of "hinge" configuration during deployment of a "hinged" rod with one "hinge""></a></td> <td width="208"><a href="pages/page_45.html"><img src="thumbnails/s45.jpg" width="128" height="180" border="0" hspace="14" vspace="0" alt="Dynamically Deployed "hinged" rod: test (black) and prediction (green)"></a></td> </tr> <tr><td height="5"></td></tr> <tr align="center" valign="top"> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">ABAQUS finite element model of one "hinge" region of a foldable/deployable rod</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">Static, highly nonlinear moment-rotation behavior of a long, shallow, free-edged, cylindrical shell sector (tape measure) being bent longitudinally in two opposite directions</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">Stages of simulation of folding of two "rigid" short rods connected by a "hinge" such as that shown two slides ago</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">Static test (black) and prediction (green): comparison of "hinge" configuration during deployment of a "hinged" rod with one "hinge"</small></td></tr></table></td> <td width="208"><table cellspacing="0" cellpadding="5" border="0"><tr><td align="center"><small class="title">Dynamically Deployed "hinged" rod: test (black) and prediction (green)</small></td></tr></table></td> </tr> <tr><td height="14"></td></tr> </table>

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Sunday, December 27, 2020