B.5.3 Masonry

For masonry you may choose a model for orthotropic plasticity. See also §2.1.4 for an overview.

Masonry				§5.2
no parameters

B.5.3.1 Hill

The Hill orthotropic plasticity model is available for masonry [§5.2.1]. When you have indicated the yield criterion iDIANA will ask you to specify appropriate yield stress parameters depending on this criterion and the model type [Table 5.1].

Hill orthotropic plastic		YIELD	HILL	§5.2.1
Yield stress in x-direction	$\sigma_{{\mathrm{y} , xx}}^{}$	YLDSIG	sigy	§5.2.1
Yield stress in y-direction	$\sigma_{{\mathrm{y} , yy}}^{}$	YLDSIG	sigy	§5.2.1
Yield shear stress xy	$\sigma_{{\mathrm{y} , xy}}^{}$	YLDSIG	sigy	§5.2.1
Yield shear stress yz	$\sigma_{{\mathrm{y} , yz}}^{}$	YLDSIG	sigy	§5.2.1
Yield shear stress zx	$\sigma_{{\mathrm{y} , zx}}^{}$	YLDSIG	sigy	§5.2.1

Yield stress-princip anisot		YLDOPT	MATAXI	§5.2.1
Yield stress in z-direction	$\sigma_{{\mathrm{y} , zz}}^{}$	YLDSIG	sigy	§5.2.1

Yield stress-45deg off-axis		YLDOPT	OFFAXI	§5.2.1
Yield stress at 45 degrees	$\sigma_{{\mathrm{y} , 45\text{\textdegree}}}^{}$	YLDSIG	sigy	§5.2.1

B.5.3.2 Rankine-Hill

The Rankine-Hill orthotropic plasticity model s available for masonry [§5.2.3].

Rankine-Hill anisotropic plast		YIELD	RANHIL	§5.2.3
Tensile strength in x-direct.	ft.x	YLDVAL	ftx	§5.2.3
Tensile strength in y-direct.	ft.y	YLDVAL	fty	§5.2.3
Alpha shear stress contrib.	$\alpha_{{\tau}}^{}$	YLDVAL	alt	§5.2.3
Alpha h	$\alpha_{{\mathrm{h}}}^{}$	YLDVAL	alh	§5.2.3
Compressive strength in x-dir	fc.x	YLDVAL	fcx	§5.2.3
Compressive strength in y-dir	fc.y	YLDVAL	fcy	§5.2.3
Beta coupling normal stresses	$\beta$	YLDVAL	bet	§5.2.3
Gamma contrib. shear stress	$\gamma$	YLDVAL	gam	§5.2.3
Hill fracture energy in x-dir	Gfc.x	CMPVAL	gfcx	§5.2.3
Hill fracture energy in y-dir	Gfc.y	CMPVAL	gfcy	§5.2.3
Equivalent plastic strain	$\kappa_{{\mathrm{p}}}^{}$	TOPEPS	kap	§5.2.3
Crack bandwidth	h	CRACKB	h	§5.2.3

Crack rate (in)dependence.

For the Rankine-Hill model you must indicate crack rate (in)dependence.

Crack rate independent				§5.2.3
Rankine frac. energy in x-dir	Gft.x	HARVAL	gftx	§5.2.3
Rankine frac. energy in y-dir	Gft.y	HARVAL	gfty	§5.2.3

Viscous cracking				§5.2.3
Rankine frac. energy in x-dir	gft.x	HARVAL	gftx	§5.2.3
Rankine frac. energy in y-dir	gft.y	HARVAL	gfty	§5.2.3
Viscosity contribution x-dir.	mx	CMORAT	mx	§5.2.3
Viscosity contribution y-dir.	my	CMORAT	my	§5.2.3

Wu and Bazant model				§5.2.3
Rankine frac. energy in x-dir	gft.x	HARVAL	gftx	§5.2.3
Rankine frac. energy in y-dir	gft.y	HARVAL	gfty	§5.2.3
CMO rate parameter k0	k0	REFRAT	k0	§5.2.3
CMO rate parameter k1	k1	REFRAT	k1	§5.2.3
CMO rate par. dot-kappa-r	$\dot{{\kappa}}_{{\mathrm{r}}}^{}$	REFRAT	kapr	§5.2.3