@Article{icces.2023.010047,
AUTHOR = {Ping Yang, Pengyang Zhao},
TITLE = {Monte	Carlo	Simulation	of	Photon	Transport	in	Composite	Materials},
JOURNAL = {The International Conference on Computational \& Experimental Engineering and Sciences},
VOLUME = {25},
YEAR = {2023},
NUMBER = {3},
PAGES = {1--1},
URL = {http://www.techscience.com/icces/v25n3/53843},
ISSN = {1933-2815},
ABSTRACT = {Composite	materials	may	be	subjected	to	an	extreme	condition	where	the	surface	is	exposed	to	high-energy	
photon	 radiation	 (e.g.,	laser	 radiation),	which	can	cause	 severe	damage	and	destruction	 of	 the	 structure	
component.	 How	 the	 radiation	 energy	 is	 deposited	 in	 the	 composite	 material	 can	 greatly	 influence	 the	
subsequent	damage	process,	which	may	include	local	heating,	phase	 transformation,	heat-induced	shock	
waves,	plasticity,	etc.	While	the	interaction	of	high-energy	photons	with	homogeneous	materials	have	been	
well	studied,	it	is	still	a	challenge	to	model	the	photon	transport	in	composite	materials,	which	have	been	
increasingly	used	in	more	and	more	structural	components.	In	this	study,	we	propose	a	Monte	Carlo	model	
to	simulate	the	photons	transport	in	structurally	and	chemically	heterogeneous	materials.	The	model	is	first	
verified	and	 validated by	comparison	with	 the	existing	 open-source	 software	Geent4	 for	a	 case	 study	 of	
photon	deposition	curve	in	a	single	layer	aluminum.	The	model	is	then	applied	to	studying	the	photon	energy	
deposition	in	carbon	fiber	and	epoxy	resin.	The	simulation	results	show	that	while	it	is	the	epoxy	resin	that	
is	mainly	exposed	as	 the	surface	of	 the	structure,	 the	 radiation	energy	is	actually	deposited	more	in	 the	
carbon	fibers	than	in	the	former.	Detailed	analysis	shows	that	it	is	mainly	due	to	the	fact	that	the	photon
absorption	capacity	of	the	carbon	fiber	is	higher	than	that	of	the	epoxy	resin.	We	believe	that	this	model	has	
the	 potential	 to	 be	 further	 applied	 to	 more	 complicated	 cases	 where	 the	 structural	 and	 material	
heterogeneity	may	play	a	significant	role	in	photon	energy	deposition.},
DOI = {10.32604/icces.2023.010047}
}