Other Elements

Other Elements

QBrick1ht - quadratic hexahedral 3D element

Implementation of quadratic 3d 20-node finite element. Each node has 1 degree of freedom. See section QSpace element for node numbering order and order of faces. The element features are summarized in Table 58.

Table 58 QBrick1ht element summary

Keyword	QBrick1ht
Description	Isoparametric, hexahedral 3D element with quadratic approximation for heat transfer problems
Specific parameters	[NIP (in)]
Parameters	NIP: allows to change the default number of integration point used, possible values are 8, 27 (default) and 64.
Unknowns	Single dof (T_f - temperature) is required in each node.
Approximation	Quadratic approximation of temperature and geometry..
Integration	Integration using gauss integration formula in 8, 27 (default), or 64 integration points. The default number of integration point used can be overloaded using NIP parameter.
Loads
Features
CS properties
Status
Tests/Examples	tm/qbrick_02.in, tm/qbrick_03.in, tm/qbrick_01.in

QBrick1mt - quadratic hexahedral 3D element

The same element as QBrick1ht for mass transfer problems, see QBrick1ht - quadratic hexahedral 3D element. Linear approximation of mass concentration.

QBrick1hmt - quadratic hexahedral 3D element

The same element as QBrick1ht for heat and mass (one constituent) transfer problems. Two dofs (T_f - temperature and C_1 - concentration) are required in each node. Linear approximation of temperature and mass concentration. Other features are similar to QBrick1ht element, see section QBrick1ht - quadratic hexahedral 3D element.