of.mat.element

of.mat.element *element_tag* <string> *material_type* <string> parameter_keyword1 <string> parameter_value1 <double> …

Assign the material parameters to the target element groups. The details of materials in OpenFDEM can be found in the table below.

Material type	Constitutive keyword	Parameter keywords	Units
Hooken elastic	elastic	density - density of the mat	m/s
		v - Poisson’s ratio
		E - young modulus	Pa
		K - bulk modulus (E-v or K-G you can choose one)	Pa
		G - shear modulus	Pa
		table - time dependent for all kinds of modules, including E, K, G, lambda and also damp
		damp - stiffness damp ratio, 0.0 by default
		The following parameters for phasefield:
		Gc - energy release rate	N·m
		lc - characteristic length	m
		nita - phase viscous factor	s
Neo-hooken	neo	density - density of the mat	m/s³
		v- Poisson’s ratio
		E - young modulus	Pa
		K - bulk modulus (E-v or K-G you can choose one)	Pa
		G - shear modulus	Pa
		table - time dependent for all kinds of modules, including E, K, G, lambda and also damp
		damp - stiffness damp ratio, 0.0 by default
Excavation mat	excavation	density - density of the mat	m/s³
		v - Poisson’s ratio
		E - young modulus	Pa
		K - bulk modulus (E-v or K-G you can choose one)	Pa
		G - shear modulus	Pa
		table - time dependent for all kinds of modules, including E, K, G, lambda and also damp
		damp - stiffness damp ratio, 0.0 by default
Rigid bodies	Rigid	density - density of the mat	m/s³
Mohr-Coulomb Plastic	MC	density - density of the mat	m/s³
		v - Poisson’s ratio
		E - young modulus	Pa
		K - bulk modulus (E-v or K-G you can choose one)	Pa
		G - shear modulus	Pa
		tension - tension strength, cut-off Mohor-Coulomb model	Pa
		cohesion - cohesive strength, c	Pa
		dilation - dilation angle, non associated flow, equal to friction by default
		friction - friction angle
		table - time dependent for all kinds of modules, including E, K, G, lambda and also damp
		damp - stiffness damp ratio, 0.0 by default
Drucker-Prager plastic	DP	density - density of the mat	m/s³
		v - Poisson’s ratio
		E - young modulus	Pa
		K - bulk modulus (E-v or K-G you can choose one)	Pa
		G - shear modulus	Pa
		tension - tension strength, cut-off Mohor-Coulomb model	Pa
		kshear - cohesive strength, c	Pa
		qdilation - dilation angle, non associated flow, equal to friction by default
		qfriction - friction angle
		damp - stiffness damp ratio, 0.0 by default
Transverse Mat	Transverse	density - density of the mat	m/s³
		v_xy - Poisson’s ratio in x-y direction
		v_yx - Poisson’s ratio in y-x direction
		E_x - young modulus in x	Pa
		E_y - young modulus in y	Pa
		G - shear modulus	Pa
		damp - stiffness damp ratio, 0.0 by default
Explosive EOS	JWL	density - density of the explosive	m/s³
		E0 - chemical energy of the explosive	J
		detonation - detonation of the explosive	m/s
		A - parameter A
		B - parameter B
		R1 - parameter R1
		R2 - parameter R2
		omega - parameter R1
		x - firestarter position, x	m
		y - firestarter position, y	m
		t0 - fire starting time	s
Mazars concrete damage	Mazars	density - density of the mat	m/s³
		v - Poisson’s ratio
		E - young modulus	Pa
		At - tension parameter
		Ac - compression parameter
		Bt - tension factor
		Bc - compression factor
		e0 -
		damp - stiffness damp ratio, 0.0 by default
Johns on-Holmquist-II	JH2	density - density	m/s³
		v - Poisson’s ratio
		E - young modulus	Pa
		A - parameter A
		B - parameter B
		C - parameter C
		M - parameter M
		N - parameter N
		D1 - parameter D1
		D2 - parameter D2
		T - parameter T
		HEL- parameter HEL
		PHEL- parameter PHEL
		SHEL- parameter SHEL
		K1- parameter K1
		K2- parameter K2
		K3- parameter K3
		damp - stiffness damp ratio, 0.0 by default
Burger creep	Burgers	To be added in the tutorial, if you want to use this model, contact the developer
Power creep law	Power	To be added in the tutorial, if you want to use this model, contact the developer
Johns on-Holmquist-II	JH2	To be added in the tutorial, if you want to use this model, contact the developer
Yang blast model	Yang	To be added in the tutorial, if you want to use this model, contact the developer

Example:

of.mat.element 'default' elastic den 2700 E 30e9 v 0.3 damp 2.0