X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FTools%2FblocFissure%2Fdoc%2Fprinciples.rst;fp=src%2FTools%2FblocFissure%2Fdoc%2Fprinciples.rst;h=af6c7a646f7322914973fc72ac438d8136a8c36d;hp=ae223297a5857b9aac5f3badc9d3ca1f4f9c093a;hb=bb1db63155760ac9727a664331145cb22dd30661;hpb=37d2759a1c717ddec19844ecf6367136fcf2b3e0 diff --git a/src/Tools/blocFissure/doc/principles.rst b/src/Tools/blocFissure/doc/principles.rst index ae223297a..af6c7a646 100644 --- a/src/Tools/blocFissure/doc/principles.rst +++ b/src/Tools/blocFissure/doc/principles.rst @@ -10,7 +10,7 @@ In order to illustrate « Bloc Fissure » principle, the simple case of a crack 1. The first step consists in loading the structure mesh (a) as well as the crack surface geometry (b). -2. The crack is then meshed (c). A length criterion defines the size of the extracted « Box ». This length is called the length of influence. Every element having a node within this zone is included in the « Box ». A second operation adds elements in the Box in order to have continuous faces (d). +2. The crack is then meshed (c). A length criterion defines the size of the extracted « Box ». This length is called the length of influence. Every element of the structure mesh having a node within this zone is included in the « Box ». A second operation adds those elements in the Box in order to have continuous faces (d). 3. A geometrical Box is reconstructed from the extracted Box mesh. The reconstruction is limited to faces which intersect the crack (e). A torus is created following the crack front (f). @@ -63,6 +63,7 @@ The length of influence is important. It defines the size of the extracted Box. .. image:: images/longueur_influence.png :width: 600 :align: center + :alt: The length of influence Every element having a node at a smaller distance to the crack than the length of influence is selected. Then a filling algorithm fulfill the Box with elements to get a Box. The Box is not limited to rectangular shapes. See the section on :ref:`test cases ` to see examples. @@ -90,6 +91,7 @@ For similar reasons, crack front edges must exceed from the structure mesh. The .. image:: images/schema_lignes1.png :scale: 80 + :alt: Crack front edges 5) **Loss of element groups:**