*NODE
      1,           0.0,           0.0,           0.0
      2,           1.0,           0.0,           0.0
      3,           0.5,           0.0,           0.0
*ELEMENT, type=B31
      3,             1,             3
      4,             3,             2
*Elset, elset=elBm_set
 3, 4
** Section: elBm_set  Profile: elBm_set
*Beam Section, elset=elBm_set, material=Bm_mat, temperature=GRADIENT, section=I
 0.15, 0.3, 0.15, 0.15, 0.0107, 0.0107, 0.0071
 0.0, -1.0, 0.0