2022.3

2022.3

*MAT_032 (LAMINATED_GLASS)

LS-DYNA Input Interface KeywordThis keyword defines a layered glass with polymeric layers material models.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
MAT_032 or MAT_LAMINATED_GLASS
`mat_ID`	$ρ_{i}$	`E_g`	`Νu_g`	`SIG_g`	`ET_g`	`EPSP_g`	`E_p`
`Νu_p`	`SIG_p`	`ET_p`

Add up to 4 cards (32 integration points).

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
`F1`	`F2`	`F3`	`F4`	`F5`	`F6`	`F7`	`F8`
etc
etc
etc	etc				`F30`	`F31`	`F32`

Definition

Field	Contents	SI Unit Example
`mat_ID`	Material identifier. (Integer)
$ρ_{i}$	Initial density. (Real)	$[\frac{kg}{m^{3}}]$
`E_g`	Glass Young’s modulus. (Real)	$[Pa]$
`Nu_g`	Glass Poisson’s ratio. (Real)
`SIG_g`	Glass yield stress. (Real)	$[Pa]$
`ET_g`	Glass plastic hardening modulus. (Real)	$[Pa]$
`EPSP_g`	Glass plastic strain failure. (Real)
`E_p`	Polymer Young’s modulus. (Real)	$[Pa]$
`Νu_p`	Polymer Poisson’s ratio. (Real)
`SIG_p`	Polymer yield stress. (Real)	$[Pa]$
`ET_p`	Polymer plastic hardening modulus. (Real)	$[Pa]$
`F1` to `F32`	Integration point material. = 0 Glass material. = 1 Polymer material. (Real)

Comments

This keyword maps to /MAT/LAW27 (PLAS_BRIT) and /PROP/TYPE11 (SH_SANDW).
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.