{
 "title": "MacNeal–Harder twisted beam",
 "kind": "benchmark",
 "source": "MacNeal and Harder, 'A proposed standard set of problems to test finite element accuracy', Finite Elements in Analysis and Design 1 (1985) 3–20, Fig. 6 (p. 8), Table 3 (p. 10)",
 "status": "pending",
 "requires": "a helical shell mesh: mesh.block's 2D form is planar and takes z = 0, so the twisted strip must be written node by node (as scordelis-lo-roof-shell and pinched-cylinder are), or mapped blocks must gain helical edges",
 "quantities": [
  {
   "id": "in_plane",
   "quantity": "tip displacement along the in-plane load",
   "value": 0.005424
  },
  {
   "id": "out_of_plane",
   "quantity": "tip displacement along the out-of-plane load",
   "value": 0.001754
  }
 ]
}