TY  - EJOU
AU  - Wang, Liang 
AU  - Su, Haibo 

TI  - A	Phase-Field	Framework	for	Modeling	Cohesive	Fracture	and	Multiple	 Crack	Evolutions	in	Fiber-Reinforced	Composites
T2  - The International Conference on Computational \& Experimental Engineering and Sciences

PY  - 2023
VL  - 26
IS  - 2
SN  - 1933-2815

AB  - This	work	proposes	a	novel	multi-phase-field	formulation	to	characterize	the	distinct	damage	mechanisms	
and	quasi-brittle	fracture	behaviors	in	FRC.	The	phase	field	driving	forces	for	each	failure	mechanisms	are	
first	defined	based	on	an	anisotropic	energy split	scheme.	Then,	the	PF	degradation	functions	pertinent	to	
each	failure	mode	are	properly	defined	with	corresponding	material	fracture	quantities,	which	enables	the	
derivation	of	embedded	Hashin	failure	criteria	for	fiber- and	matrix	failures	respectively.	Furthermore,	the	
material	 damaged	 stiffness	 is	 redefined	 within	 the	 anisotropic	 CDM	 framework,	 and	 a	 linear	 CZM	 is	
mathematically	 derived	 for	 each	 of	 the	 typical	 failure	 mechanisms.	 Finally,	 the	 model	 validation	 is	
demonstrated	 by	 the	 high-fidelity	 simulation	 of	 several	 benchmark	 examples,	 and	 good	 agreements	
between	 current	 predictions	 and	 available	 experimental	 data	 or	 alternative	 computational	 results	 are	
observed. The	present	findings	and	future	scope	highlight	the	predictive	capability	of	the	proposed	scheme	
for	analyzing	fracture	behavior	of	composites.
KW  - Multi-phase-field; cohesive	fracture; progressive	failure; fiber	reinforced	composites

DO  - 10.32604/icces.2023.09107