*MAT_169 (ARUP_ADHESIVE)

LS-DYNA Input Interface KeywordDefines adhesive bonding material.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
*MAT_169 or *MAT_ARUP_ADHESIVE
mat_ID	${\rho }_i$	E	v	TENMAX	GCTEN	SHRMAX	GCSHR
PWRT	PWRS

Definition

Field	Contents	SI Unit Example
mat_ID	Material identifier. (Integer)
${\rho }_i$	Initial density. (Real)	$\left[\frac{\text{kg}}{{\text{m}}^{\text{3}}}\right]$
E	Young’s modulus. (Real)	$\left[\text{Pa}\right]$
v	Poisson's coefficient. (Real)
TENMAX	Yield stress in tension. (Real)	$\left[\text{Pa}\right]$
GCTEN	Energy per unit area for bond to fail in tension. (Real)	$\left[\frac{\text{J}}{{\text{m}}^{\text{2}}}\right]$
SHRMAX	Yield stress in shear. (Real)	$\left[\text{Pa}\right]$
GCSHR	Energy per unit area for bond to fail in shear. (Real)	$\left[\frac{\text{J}}{{\text{m}}^{\text{2}}}\right]$
PWRT	Exponent value for failure in tension. (Real)
PWRS	Exponent value for failure in shear. (Real)

Comments

1. This keyword maps to /MAT/LAW169 (ARUP_ADHESIVE) and /PROP/TYPE43 (CONNECT).
2. The material is fully compressible in the vertical direction from solid element face 1 to face 2.
3. The tension stiffness is in the vertical direction and shear stiffness is perpendicular to the vertical direction.
4. Each node of the solid element should be attached to a deformable or rigid node or to be constrained by a kinematic condition (that is, tied contact).
5. The option “_TITLE” can be added to the end of this keyword. When “_TITLE” is included, an extra 80 characters long line is added after the keyword input line which allows an entity title to be defined.