update

book/week_13/session_3/intro.ipynb

@@ -14,9 +14,36 @@
     "\n",
     "## Exercise Internal forces and displacement due to torsion\n",
     "\n",
+    "```{note}\n",
+    "In this exercises, you'll be given the location of the [shear force centre](../../external/mechanics-BSc/book/stresses_displacements/cross-sectional/shear-force-centre.md). This topic will be treated in the homework of [next week Wednesday](homework14.2). The only thing you need to know now is that the torsional moment can be calculated using the lever arm with respect to this shear force centre.\n",
+    "```\n",
+    "\n",
     "Given is the following structure:\n",
     "\n",
-    "\n"
+    "```{figure} intro_data/structure.svg\n",
+    ":align: center\n",
+    "```\n",
+    "\n",
+    "It represents the Puente de la Mujer in Buenos Aires, Argentina. The cables are connected to the edge of the deck, leading to torsional forces.\n",
+    "\n",
+    "1. Draw the torsional moment distribution in the structure.\n",
+    "2. Find the rotation around axis $x$ at $\\text{E}$\n",
+    "\n",
+    "````{admonition} Solution assignment 1\n",
+    ":class: tip, dropdown\n",
+    "\n",
+    "```{figure} intro_data/Mt-line.svg\n",
+    ":align: center\n",
+    "```\n",
+    "\n",
+    "````\n",
+    "\n",
+    "````{admonition} Solution assignment 2\n",
+    ":class: tip, dropdown\n",
+    "\n",
+    "$\\varphi_{\\text{E},x} = -1.1 \\cdot 10^-4\n",
+    "\n",
+    "````\n"
    ]
   }
  ],