TY  - EJOU
AU  - Zhang, Heng 

TI  - Elastic	Bimaterial	Interface	Fracture	Analysis by	using	Peridynamic	 Theory
T2  - The International Conference on Computational \& Experimental Engineering and Sciences

PY  - 2023
VL  - 26
IS  - 3
SN  - 1933-2815

AB  - Interface	fracture	is	the	main failure	mode	of	bonded	materials	and	structures,	its	theoretical	and	numerical	
analysis have	 caused	 wide	 attentions.	 Peridynamics	 is	 a	 nonlocal meshfree	 method,	 which	 has	 a	 great	
advantage	in	materials and	structures failure	analysis.	In	our	recent	works [1-3],	a general	peridynamicsbased	 framework	 for	 elastic	 bimaterial	 interface	 fracture	 problem	 analysis was established.	 The	
peridynamic	interface	model	with	the	thermal effect	was	proposed,	the	nonlocal	form	of	interface	bond	force	
was	 given.	 The	 energy	 release	 rate	 and	 mode	 mixity	 of	 the	 interface	 crack	 were	 computed	 with	 the	
peridynamic	virtual	crack	closure	technique	(PD_VCCT).	The	extended	critical	energy	density	bond	failure	
model	 was	 presented	 for	 the	 interface	 fracture	 prediction,	 in	 which	 the	 mixed-mode	 fracture	 was	
considered.	The	crack	surface	frictional	contact	behavior	was	modeled	with	the	peridynamic	node	to	node	
contact	model.	Some	examples were	analyzed	with	the	proposed	peridynamic	model	 for	verification	and	
application,	 such	as the	 single	edge-notched	 bimaterial	 (SENB),	asymmetric	 bimaterial	 cantilever	 beams	
(ABCB)	 and	 four-point	 shearing	 (FPS)	 tests. The	 interface	 deformation	 and	 fracture	 behaviors	 were	
captured	with	the	peridynamic	models.	The	results	show	that	the	proposed	models	achieve	great	success	in	
bimaterial	interface	fracture	analysis,	with	the	comparison	to	the	available	analytical	and	the	finite	element	
method	(FEM)	solutions.
KW  - Bimaterial	interface	fracture; peridynamic	theory; crack	growth

DO  - 10.32604/icces.2023.09243