@Article{icces.2023.09500,
AUTHOR = {Yuanzhe Li, Qiwen Liu, Lisheng Liu, Hai Mei},
TITLE = {The	Coupled	Thermo-Chemo-Mechanical	Peridynamics	for	ZrB<sub>2</sub> Ceramics Ablation	Behavior},
JOURNAL = {The International Conference on Computational \& Experimental Engineering and Sciences},
VOLUME = {26},
YEAR = {2023},
NUMBER = {1},
PAGES = {1--1},
URL = {http://www.techscience.com/icces/v26n1/53884},
ISSN = {1933-2815},
ABSTRACT = {The	ablation	of	ultra-high-temperature	ceramics	(UTHCs)	is	a	complex	physicochemical	process	including	
mechanical	 behavior,	 temperature	 effect,	 and	 chemical	 reactions.	 In	 order	 to	 realize	 the	 structural	
optimization	 and	 functional	 design	 of	 ultra-high	 temperature	 ceramics,	 a	 coupled	 thermo-chemomechanical	bond-based	peridynamics	(PD)	model	is	proposed	based	on	the	ZrB<sub>2</sub>	ceramics	oxidation	kinetics	
model	and	coupled	 thermomechanical	bond-based	peridynamics.	Compared	with	 the	 traditional	coupled	
thermo-mechanical	model,	the	proposed	model	considers	the	influence	of	chemical	reaction	process	on	the	
ablation	resistance	of	ceramic	materials.	In	order	to	verify	the	reliability	of	the	proposed	model,	the	thermomechanical	 coupling	 model,	 damage	 model	 and	 oxidation	 kinetic	 model	 are	 established	 respectively	 to	
investigate	 the	 applicability	 of	 the	 proposed	 model	 in	 dealing	 with	 thermo-mechanical	 coupling,	 crack	
propagation,	and	chemical	 reaction,	and	 the	 results	 show	 that	 the	model	is	 reliable.	 Finally,	 the	coupled	
thermo-mechanical	model	and	 coupled	 thermo-chemo-mechanical	model	are	 used	 to	 simulate	 the	 crack	
propagation	process	of	the	plate	under	the	thermal	shock	load,	and	the	results	show	that	the	oxide	layer	
plays	a	good	role	in	preventing	heat	transfer	and	protecting	the	internal	materials.	Based	on	the	PD	fully	
coupled	 thermo-mechanical	 model,	 this	 paper	 innovatively	 introduces	 the	 oxidation	 kinetic	 model	 to	
analyze	the	influence	of	parameter	changes	caused	by	oxide	layer	growth	and	chemical	growth	strain	on	the	
thermal	protection	ability	of	ceramics.	The	proposed	model	provides	an	effective	simulation	technology	for	
the	structural	design	of	UTHCs.},
DOI = {10.32604/icces.2023.09500}
}