====== BOCHA ======
Force distributed on the boundaries of a plane element \\
===== Description =====

This element applies a normal pressure P on the parabolic or lineic borders of an element. Each border is defined by 2 or 3 nodes. The positive axis for pressure is on the left when considering the element in the order of the nodes.\\
\\
The forces are defined by the fictive law [[laws:bocha|BOCHA]].  \\
Type: 14 \\
Revised by: S. Cescotto, 1986
==== Files ====
Prepro: BOCHAA.F \\
Lagamine: BOCHAB.F
===== Input file =====

^ Line 1 (A5)^^
|TITLE|"BOCHA" in the first five columns|
^Line 2 (I5)^^
|NELEM|Number of elements|
^Definition of the elements (4I5/8I5) repeated NELEM times^^
|NNODE|Number of nodes of the BOCHA element (3, 4, 6, or 8)|
|NINTE| Number of integration points of the plane element associated to BOCHA (defined by the same nodes) (4 or 9, 3 or 7)|
|LMATE|Material law|
|NINTEBO|Number of integration points of the BOCHA element (distributed on the sides of the element): 2 or 3 per side|
|NODES(8)|List of nodes defining the element|
{{  :elements:plxnt.png?400  |}}

===== Results =====
Sigma: pressure (see [[laws:bocha|BOCHA]] law)