material Element

Name	Occurrences	Description
Sequence
name		Name of material
description	[0, 1]	description of material
rho		Density of material in [kg/mm^3]
k11		stiffness component in 11-direction in [N/m]
k12		stiffness component in 12-direction in [N/m]
Choice		choice between 3 different material behaviour
Sequence		mechanical properties for orthotropic material Material orientation: 1: orientation in first preferred direction 2: orientation in second preferred direction 3: remaining orthogonal direction
k13		stiffness component in 13-direction
k22		stiffness component in 22-direction
k23		stiffness component in 23-direction
k33		stiffness component in 33-direction
k44		stiffness component in 44-direction
k55		stiffness component in 55-direction
k66		stiffness component in 66-direction
sig11t		tensile strength in 11 direction in [N/m^2]
sig11c		compressive strength in 11 direction in [N/m^2]
sig22t		tensile strength in 22 direction in [N/m^2]
sig22c		compressive strength in 22 direction in [N/m^2]
sig33t		tensile strength in 33 direction in [N/m^2]
sig33c		compressive strength in 33 direction in [N/m^2]
tau12		shear strength in 12 direction in [N/m^2]
tau13		shear strength in 13 direction in [N/m^2]
tau23		shear strength in 23 direction in [N/m^2]
Sequence		mechanical properties for transverse isotropic material Material orientation: 1: orientation in fiber direction 2 and 3: orientation orthogonal to fiber direction other stiffness components are dependent on the given ones by symmetry relationships
k22		stiffness component in 22-direction
k23		stiffness component in 23-direction
k66		stiffness component in 66-direction
sig11t		tensile strength in 11 direction in [N/m^2]
sig11c		compressive strength in 11 direction in [N/m^2]
sig22t		tensile strength in 22 direction in [N/m^2]
sig22c		compressive strength in 22 direction in [N/m^2]
tau12		shear strength in 12 direction in [N/m^2]
tau23		shear strength in 23 direction in [N/m^2]
Sequence		mechanical properties for isotropic material other stiffness components are dependent on the given ones by symmetry relationships
sig11		tensile strength in 11 direction in [N/m^2]
tau12		shear strength in 12 direction in [N/m^2]
sig11yieldT	[0, 1]	tensile yield strength in 11 direction in [N/m^2]
sig11yieldC	[0, 1]	compressive yield strength in 11 direction in [N/m^2]
maxStrain	[0, 1]	Maximum strain of the material. This value is intended for layerd material. Thus no orientation is given.
fatigueFactor	[0, 1]	optional knockdown factor for fatiuqe (defaults to 1)
postFailure	[0, *]	This type describes the post failure behaviour of the material.

Name	Type	Required	Description
externalDataDirectory	string
externalDataNodePath	string
externalFileName	string
uID	string

Material type, conatining data of a material Material orientation: 1: orientation in first preferred direction 2: orientation in second preferred direction 3: remaining orthogonal direction other stiffness components are dependent on the given ones by symmetry relationships. 3 different material behaviours can be defined which is carried out by the 3 branches of the definition.

isotropic material like aluminium and steel may be defined

transversal isotropic material like uni-directional layers of CFRP may be defined

orthotrop material like several layers of CFRP may be defined

Reference

materialsType