$$$$ @ORTHO NOTICE CHAT 11/09/12 21:17:29 7124 DATE 11/09/12 CETTE PROCEDURE A ETE MISE GRACIEUSEMENT A DISPOSITION DE LA COMMUNAUTE CASTEM2000 PAR P. LIBEYRE ( CEA/DSM/DRFC ) PROCEDURE MISE A JOUR PAR OF LE 09/03/2009 Procedure @ORTHO Voir aussi : @FRENET ---------------- MAT1 MODL1 = @ORTHO GEO1 LIG1 CH1 CH2 ALPH1 LIST1 (TYPEMOD (TYPEELT)) (PTGENE) ; Description: ____________ This procedure enables the creation of the field by elements of the mechanical characteristics of an orthotropic material with any symmetry. The directions of orthotropy can be obtained from the local basis of a direction line. Contents: _________ GEO1 : Mesh geometry (MAILLAGE type) LIG1 : Direction line of the GEO1 geometry (MAILLAGE type) CH1 : Field by points of the unitary vector of the first direction connected to LIG1 (CHPOINT type) CH2 : Field by points of the unitary vector of the second direction connected to LIG1 (CHPOINT type) ALPH1 : Angle between CH1 and the first direction of orthotropy (FLOTTANT type) LIST1 : List of the (uniform) material mechanical characteristics (LISTREEL type) TYPEMOD : Keyword corresponding to the expected modelisation (MOT type): 'COMI' 2D/3D model with thin shells (COQ2, COQ3 or DKT finite element type) 'COEP' 3D model with thick shells/shells with transverse shear (DST, COQ4, COQ6 or COQ8 finite element type) 'TRID' 3D solid model 'AXIS' 2D axisymmetrical solid model 'FOUR' 2D Fourier series solid model 'PLANCONT' 2D plane stress solid model 'PLANDEFO' 2D plane strain solid model 'PLANGENE' 2D generalized plan strain solid model (By default, the modelisation corresponds to the current solid mode of calculation given by 'VALEUR' 'MODE'.) TYPEELT : Keyword corresponding to (when TYPEMOD is equal to 'COMI') the thin-shell finite element ('COQ3' or 'DKT') associated to the TRI3 type element of the GEO1 mesh (MOT type) (By default, the COQ3 element will be used.) PTGENE : Support point (compulsory) in the case of a 2D solid or thin-shell modelisation with the generalized plane strain hypothesis MAT1 : Field by elements containing the orthotropic material properties (MCHAML type, CARACTERISTIQUES sub-type) MODL1 : Model object defining the orthotropic material (MMODEL type) Note 1: _______ LIST1 must imperatively have the following 13 values : E1 Young's modulus according to the first direction of orthotropy E2 Young's modulus according to the second direction of orthotropy E3 Young's modulus according to the third direction of orthotropy NU12 Poisson's ratio NU23 Poisson's ratio NU13 Poisson's ratio GR12 Coulomb modulus GR23 Coulomb modulus GR13 Coulomb modulus ALP1 thermal dilatation coefficient according to the first direction of orthotropy ALP2 thermal dilatation coefficient according to the second direction of orthotropy ALP3 thermal dilatation coefficient according to the third direction of orthotropy RHO density (Fix 0. to the values which are not relevant with the actual modelisation.) Note 2: _______ In the case of a problem including different types of modelisation (thin-shell thick-shell and massive ones), it is necessary to call the @ORTHO procedure for each concerning type. Nevertheless the GEO1 mesh can perhaps include different finite elements of the same type (massive or shells). Note 3: _______ The fields by points CH1 and CH2 can be obtained by applying the @FRENET procedure to the LIG1 mesh line. Note 4: _______ This @ORTHO procedure replaces the cal to the two operators MODL and MATR. The list of the characteristics of orthotropy is given by the documentation of the MATE operator for each type of material.
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