Table Of ContentProsaodings of ASME Tur Expo 2004
Penwarfoe Lan, $59, and A
tune 1417, 2008, Yona, Austria
GT2004-53910
FOREIGN OBJECT DAMAGE BEHAVIOR OF A SiC/SiC COMPOSITE
‘AT AMBIENT AND ELEVATED TEMPERATURES.
‘Sung R. Chol, Ramakrishna T. Bhat, J. Michael Pereira, and John P. Gyekanyasi
NASA Glenn Research Gerter, Cleveland, 01124195, LBA,
agsTRACT
Foto objset damage (FO) Isto of ¥ gaecniae
grate SICINC erramic mae compari (CMC) ws
derived at 28-and 1H, replying smgacr velectios,
fuse 113 te $40 mss by L30erem amet steel
sects. ‘Two aif spn uf sperma apport ere
wed at vost Temperature tally saps al aay
fopportd. Fora gic npn, Ine Seger of poeripact
srengh degndavion.ioesweed with kesasing impac
‘eli, a was rete ia pal» spponed soatguaton
thon ia fuly supped ono. The stove kerperatie EOD
elnsoce of te eneposi, aricully uadst ly
ippoved teeing a higher inpsot wets 39 my ms
Sipeeandy Toi le he ambercerspeurs om,
imho to ¢ weakming cist ofthe campos, hor (ay
sopsorod loan, wt rac ese played amar ie
enerling campsite dssago: tea, kept fy appa
foading, otk femal oll and Weksde beading. mess
‘wore anbioed sowes of damiz0 seecation. Tie SIC
Compesit nai aie waive her enengy ipa iho
‘complete strum! core br sffetad te sien allt
danoge fie Tov energy Fopacte thay ASBON aid SNE
‘Shoot niaides [Ronnie SIGE eeaate atic
‘imei ign bye nage (ECD
INTRODUCTION
Germ, hestne offs brite nae, a8 suse lo
Jocrized surace damage andor sacking when ejected 1
aiyael by edge beets Tete alo tne tha ara
emponeats ay ft straetirally ever by wll piles wha
The Rois nna of rapctcg object sxeseds cen Fn
‘The Later ease hus been often found in cerespace cogtess in
‘which combustion roduc, llc pals o> all erin,
objec conse covers damage © Sladsvaee suuemunenty
Fetoling wv eres sive probe, etefre, Fong
objet dnags FO) areola wh pails mae ae
J ootsieted shen ceramic mace are designed
sinicnal appieatims. th vigor 02 Tk anos 8
Smile aunt of wuck om inpuct Eamage of be
tcl by dar patie n wll ny “Hl” ptises cr
Jy pletes hay bora scchumlatoe bod? exscrientlly and
oalvicaly, Stelling she asevarents of OD Tor nine
engireappcion [I-14
Te frevons shill ISAM FOI? tebavior of reo
epretentive pasubine gage cow rides, ASSUD and
SDD, wan determined or eambcutteupstrco wing ith
slewwo! bate and dake. Poly saprted eeaie ange
Sterne sere inpreted et their tsatre ‘by nce! el
proeeien with a diane 18) omy un srlly rege
froin 2201 4a as, ASS? wou aide exhibited a greater
TOD wesisance than NDAD, dng i ib grit ke of
Figen foughoess (Cg "The Iey material parame,
aliecting FOD covilunas way Jiler evidenced by he FOD
‘eepemme af aa adeitooal equated Ons-taina ike ice
ANCL tht exited the lowewe acute toughness of te
Bree silton aides ested [15] Ni irl each yin
lacolved in inact ecemt ith fucrensing inpact eosin,
routing in stveral difzeal pes uf fans rgniated
Indica ersimulancovsly, A frre auap wee peopaced
weeny" the aecameace of pariona” cizeh puter The
degree of damage went re eee og ik
‘haw in Use bas
‘55 8 pevrin or ep af spor inland iar presentation at
{onfsenes. cause changas may us made ost Torel
Dueaton. Px tae seadaba w he understanding ha ol
ro} be fest voaicod wiht the pareision he auc
noma ine
yetyor fon,
rege te
age gsinue is a dpnire OF
Sapicd nh miaes segleg foes HE
sie leates det
ieee iston a.
ee geahwar “he, L tebel cite
ipemtiane Mogehainds,
Lytftphast Piatto
he nageig, et a evel he Rap oltcnn Si,
(ie SIE aie ron te
{FRC tes flit ds Agree" Whee Paeigeit.
ed 1 gies Sctn late
Sy ed al
Fareeponin Cat
: His ek ren ah
lhe fe 8
ena Bk ae
pee
adic abigoie wntronpedeile hice
Es vote 0 beds BN aie ast
BG EH lin Le ee
liatradnds be ch ant
ny goto ces:
Sacatan sits Reco Yertin
pai ae
ce Ecos Hicdinine SFOS Feeds bie escie
ea
Bias he
‘ce
oy
Figur 3. 0} Two par of rp eposimen suppor used In FOD
‘Sing: itt) fly Supported nepal supported 20
amen Ha catawrton snod bps
food mectarum ingy se Ginnve ‘hoes ferapranie si
Sighly Yolen the cot wrperature. The spec ate heat
fan held tthe feat eaperan fr about 1S ee: hr tse
caution. A therbucouple ses pce close te he tase
‘Secueno menit: and oousa: emperatie. Re impict
Testing, he spmcmren wis lo fowened en fora
aad Glen oot of te holder asters Fler meemaor
and eating
Amp velocig ofeach projetie was teu wing
80 pas of laver llr ang steer imeeponted ith
to holes i the gun bas, 24 desist ine [118], Tbe
‘age of ispaclyelecty employed is his ork way fone 11S
fo-HiOmi. At cash ehporstan, oes ly fee test pects
Sore used a eich velviy for 8 akon susie sure
Ipict moepholgics nf bigel specimens wore oramined
pscally afer apse tig.
Bostamnset strength Testing
Sneugth tng (ov irnsstnd target sporioees as
pevhiad , amblenttempernie in ai ieterme the
Seventy of inpast damage sine Wrgaint eae Hata
wile 20seninger ane bum ut span Ue Me
Tasb inpactod spevinen vs hated 2 The Moxa fst
sch ol es umpact ste was steer bo ni aia be
Igor span. An VDE we ward to deerine the ate
telecon of ‘specimens during siemglh leving AD
Slootomactan‘al tes, Bye (Model S562. In, Casey,
IMA) sas used in dspscomsnt court ihm acai sped
OF. wowmin. A Sacopeepic analyse mae penne lor
poslinpiet steugt eteg to dstenine Bale oeia Su
Configures anf nauleut tata, posable. "Aerostivad
eval suengih stan algo detained wilh twee res
POSTAIPAC! SINENGHY. otha
IMPACT VELOCITY. fs]
Benet
Eo eae
5 anys
je ~
ae
er oe
IMPACT VELOOITY, ¥ os]
Faure 4 Possimgoet tour renin as 2 tuscbn of unset
“cosy eboemine or SOIC compote mpacted by ere
Slarstr ole ball pasties wai two. ioeart per ot
Sainen Soret) 2h tang) ISI, “hae
specnmeas using ie sas tt Astin, UAL ferme a teat
pdt Mat ere iced ia tho ‘vetinpase sgt
toto
RESULTS AND DISCUSSION
Postimpact Strength
The ross of siengta tesg fx impacted. pet
specinios ae show in Fig. 4 whuie postinpuct Dexue
sleength wax phived asa Siac of impact relciy fw both
types of spccimon seprurt al cach teal nperane
Trchal ohe Tigre 39 the ceocived (ASR) Coxe
strength (-S7H=54 MPO} determined at ambi tamper,
(Cae sposioon at wach lemgersie opeced ae Be Ist
cove (hey 360 mat 25°C LES ns a 17166) aid ok
Frac i, inal Tocaate uf mele pel ae
and is vetixg reap wea clo ro the apsecstve tons
‘Ag agen on the Tyuze, pote sem ere ith
Incressng pact velacty ar Det empsratc,soprdlest oF
The pe of opesinen sappet alrhuted Fe Sacred Supact
dexage. Fer aJeon iupsct elocty, excl dexiadioe
seas greater for tb gmap sop speciosa or fa0
folly sapponed uss. The iupact damage for dhe Cally
ppd anos rts mel orly wth nn fonact
sti; while tar dimage for the parlly mpgmrisd ows
rested Minn Gob Toni cenit amd bucside ending
sess. esting i mate significa stength gratia
the pully sapponed gue damage well > deers i
‘nore dea nth el scl,
‘Ns stew Hoa the fgue by compas, the Aiflaunce an
swrongthotwsun 25 an 12 gn alginate de
oppor sperizmus, Howe. the sie of nia darage
(ey spall war nhservel eter 316°C ta 25°C
(Gs ball be disccted Lee) This Implios at he oval
conbiecd datage (Gheratrie spatlsivo, deamiaaton,
rraectter criching, et) tat somal eth ole ve
uae sina in sovor'y al ho temperate fer the iy
suppuved confizmation. By conta the aucnyl erence
hetween rn wriperaties te sient forthe partly
sported ones, nculaly at higher umpuc. ylockes
‘Visual exvinaons of aly apport speiens shred
a hghereslacdoa © 350 oo epecinle damage such
6 shop opalaiun, cvcrg aad backside delamination
ecard a both fet and lacks 9 apeexmsas, worse
‘Sees, «cnet hole was Fomued though te isha af
Specizon. This podemivaut dana cence wich pata
npr} specimens es Wek ge oakDuing Me of the
compose at SIG gave rte ts such» igeomt scene
Angier
pact Morphology
"The aecsll panel were flaasud of sevely
etme upaa impact a ox hnpasl weloces #5 «rest of
ccompansitg. gisis efoctiioa At igher mas
‘elves (200 ma) the njsules weve Sujet La beth
fxksms hel evens by buming res or Be slo
rruny proes.Toweve, c bat elnsrral Tha De overall
Profcels dase wo les in the cue SICISHC cma
than in AS¥OU ond SNPSD scons [15-1 de toe
fact tha the SiC'S1° samples doune aud eof wil 3
sore open strani to alee isteasu? skinping vv onary
ovbing sap.
‘be drat imps dunagss yewcvte in ange specous
wer indents aratery ep bees rh tic se deg
Gn ‘npact selocity and “een Ligne 3 shows tb
inact eee size (Ub ab Metin of impact vlesy. he
eves of danage insveatad wih ining impact locity
For a given erapenture, rive stengeh, came sit wus no
sorte u tte ype of specie suppin eller at 25 a
TST. meres, inant expr ABN sce ah
seater 91516 tna 125°C due fea tepertine etc of
Songusita As alivematione, a higher impact wohl
PHSD ars, teeks.de damage beooms sigan for tie
otillysoppirisl opeomens uth a presence oP severe
Enstade amaking and deamination due ta backsde tase
stress. [pial example sing repo damm fe bal
fully aud pels sopponcd speciraens as presented ia Fig
sel rel alight ble ee he Rake
Aorage forthe ally sopparted spesincn vas sil sipsioant
cxuened lum i tide view. The Sgue else Socluos “1
fiona dmage vie fovea spect chery Wasbalane
cf pogresis ingest damage ‘er bo flly oppnece aad
rtvally suppor et loutng ne shown inp. 7. Mere deed
oe
DAMAGE SIZE, 4 fmm
ImAcr VELOeAY,¥ [ms]
OAMAGE SIE, dtm)
IMPACT VELOGETY, Vim
‘Sloe far ay euppote ana petal supoartossbacna Is
25 fm ana) 13H. The earage nf) war a aeorg2 of
{yo agonal meturerioni, The RY data) mdcseg oe
Sotad Ee
Ienpact sie
Figure 6, Typlal sample of ingoct damage shawion peal
Side, an bashalao eb cpstnene inpoced st THCY
iar "upnta spacing tara =) Ay
{ah Aco gots tnt action caminaton cured inh ened
m= 7 al
Figure 7. enum o¢innae mege soci oft Rte
Supported an 1) tly supper space confers
‘nthe row inci chee incocring poe ony.
snd accumte avelysis on cnpuct damage and suohologs
Suid be cone: agproprle wethubloges, Optical
Ccuancbaiors, ia ents of many 2468, weve at sulci ft
(he compat on which NDE sce sacha Compute
‘Tomaginphy (CT: nat bs emploged o Bett ehaacstize De
Adgree umd natee of damage 2" The Cl wearin
feceese fr damage azcesancxt of ‘be SICISIC epoca
Sate
Load i)
Detection)
‘ty Sova apse peo BG WAY = 16 on
igus & sos typical louder lon exes deteined
fon enue tetng for fly supported spectuer impact a
115 na AO) mse T3168. Seca Foul and basses
Lange desarted Fo ibe spoz.neas impacted ac 4 in. The
Giepe ot come. mania aint eshieped ih al
frat: Hot only forthe szeinensigasted at alow slaty
{ULE ene) ov 3 high veleity 400 m5) Eu Tx the
received specten (ASK, The iedietss he Os
Ivademinatt damage induesd at 400 ts did not have uny
pula elect om esinal saliess uf the eg ©
spocirar. Ross, when a spins wi ashlar dept
oFbaclside daruge podiced a 4) m8 ws ided vers
Seah the hacks ne abjooke-u ese aes He, hon a>
laces rognod sigusiceny, aloe teu mg flow Meare
engl 1-276 MPa, vane ton rs te eee CTs
1s of couse, indzstivo of chr amporaace of she elle! of
ang yore entiguation on sonposte stiffness a5 wk
sou scrinpascenzugth
ost-Impact Strength ve, Damage Size Rotation
The sloonsbip berorea postmen al Koala
aun Sine (©) depicted fn Fig. 9. The mig Une
tales Ue best wets spe ui lec ed
Tg (ease sive. scopt fot om: data piri fered) for
pity oppo ypremrenc SLAC dal ere sects
an
POSTAMPACT STRENGTH, 4P3}
a3
amase Suze, orm
81" fee ro hiy spp, PS: poy supped
danoged, the ovenll agement of the slope with tae
sperimental duly was Tesonble Allo ite)
reeialy spovns lo anply the GrifCth theory ty Has
comimenessber reinforced composite aud to these eames
fd tandow shapes npc dames, he spre outed
te follow ths convention surugt-v-domsge cen Use
1 the Gn theory hae 06 appopixs acs MSDE
Faccr SIF} selniens togetber weit he experimen data fn
ig 9 si racttetoashnss) a lous:
Keg 2102 i5YHPe an?
The rargehetwoen 10 and 15 Pam! -diens the result of
uve of difeer SUF solutions depend on vais sour
Elche Alinils Oe ane uf hasta tougine fr CM
juntead of ears (eg, work of erie canbe argc
Ah alae of Mil well the range a ha bon aed
for govech CMC, ‘Ts ipl tha: the Iron) epic!
Cinage view (ould 36 aN fapecint conta
‘tei the seeking pov! snempth af he comple
fen ltche pleonse of anprselale dlaunation danse of
Eyes.
Comgarigon in FOD between SIG/SIC Composite and
igus If shows ¢ comporisoo in morazed postu,
seenglb Between tie cre! SICISIC poor aa
‘ube grade eco tide, ASM. The poetiupacr sen
‘of each mulerial wae aural ih ect use npelie
fuimpaced aucngth. "The postingace enough deta tr
IpaeT¥ELOcrY, ¥ eh
Figure 10, Gompartan of nommaloed pow nec alcnath 86 8
‘inalon of mage sein between SCSIC compeate ate
[Agen etleon nitive cioent xesses of ed and 3)
[iemeaced nfl eupoertg oelng 25
ASAD wore dsremiad in a Hee bin filb-cirparted
enlginion wi spine skasace 0° 2 and 3m,
inact be 6 mee stzl ball projecties at 25°C [1518
Ta cate separ seloviy 1G) Br lech st sesimens
Trach) instvar poser agen pase se el defied for
‘ASE lV,» 26D al A, reat, fH? and 3
vm. By coowass, such a rial ipuet veoeiy ws nat
fbrered fer Ihe SCC connie. Heabe, he SICISIC
Somposiscebibited umeh improves smpactreskiner over
‘S880 at hipwr foc valneae (Ve220 and 350 av,
‘sepectivly, compared with 2 and 3rua of 8300). 4
filer real ee alas obvarv fem apres stay by veD
Tene eal “UL, Hovsese. tbe notes tat eigaiesoe
inact damage geostted at higa uel veces. meting
mpi! fol, mek rach slainan ogy 9 a
Anise ant rust be avoid ia view of peribreurce,
felicia) eto lege, atonement say. Ai
Towr inaet solace of V2 ura 150 mi. respective,
‘Sra th 2 and hn of ASSN, ASAD eased et
‘Sug afer damage dun We SICSIC comcosi.
igme 1¥ shows oetaized poscampact sus ae
a fenaion of kinetic impact ensray (Cj) Re tho cuent
SICISIC compacts. A880 md SN242 sfhcon imal [16
Te A monotonic Gepsalive i aueugt with aeeaSng
inmase ceigy whe Gpiied er tbe SICH somone
sletding a Hear relationship hetwoea Log (5, } and Tag OQ,
ASEOD all SKIS ule vikdos edi gies sues
‘Mtg damags ach respectve inact eueuies of U0?
Sat e101 compred wih ihe SUIS conppnity wae,
'WPACT KINETIC ENERGY, LU}
inte 11, Compaisen of ramon’ posmpact dronghh oe =
eneton of Knese impact energy aang SSC compost,
Dekodand SHS leon mieaae (hSae), Imperted ey
‘Stoponedenaing a 2°. Uy ileal nul wary
he romolihie senimice sowed ‘ees suragit afeeiag
fduage when ifpal? en <1 Ths bet aston be I
‘composi ws Pome reo floss
B,-08se,"* o
“Te Hersian cunel analy for dese, bite leticeaide
sive he followng eget
op ou g e
‘Although uo physica eviderse wR provide inh: Suara
sau, te ACEC comuie sowed eavonuble gremertn
lope wit he eamaet theory. ‘The previnn soy [1E-18]
Tadic that eda or bolk ASS) aud SN282 eit &
‘Sgnfioat deviation fu the Mery, a gn be seen ven
ig 11
TDSEgng auneryine.coemporenls to aathemad FOD
ceric fe tonples tak, Conlin of may faire
ecuisd, both In Be geveraion ah OD ely a wel gs 22
sehel comment design etfs 2). saps of the
‘ume fete chat allen:
1+ Erfeot of pore metriigeemaus
FffeL af eal prema ratrmalgeomerschiterame
1+ ke espera apa ad ceapene
4 Elft nr empatheetens nine
4 Fits: of FOD darrge oa catinst expose te
‘vale emperatee arn emioeneht
{+ Sporestine procetve coatings
© Gaeonsatics design enbanes FOD resitanes
© OR:Refitihetate pao it oi
Somme of dasee Sct are rain sects ul way a te
Tele son wer yy ah a he take roped ints
Pope Obes aro lenge ells and ae pure
Silly dhe. gust te hoe Uke They aha
Telabiliy af aeteagine composers. the say of specimen
‘ippor ay imporiant affect wecrll TOD haven, std
‘bs ar vclitis as possible 7 reposet co setal atacincat
coutigtetions, Lthns bon experienced liom the Wook tht
Ae eaiplsky it tare eosin the SSC compote
‘az, ia) matolidie sihvon uiices in tome of bnaio
nian Tepe damage phencrieron,
CONCLUSIONS
1 Ths eral impact damage ofthe SiC'SIC campoito was
Joust w be prez far panty seppured lowing za
fin Telly suppntsl oneal lh 22 el WHE. Te
sreogh degtaducen Wid respec impact vleity wae
sire opprcble a TS6C, pintnbnly for partially
Eapponed Todi at highs pact veleic.
2 Loe tally suppered loading. Howal oomce sass
playa ingur le in genealing crepe dag
‘whnteus, OF parity suppores locdiag, Yor outa
SSnat ane hock hanvngsienes ere cerned
euros of dang? gructation
23 Tilike SMO ne SNIAD luo nce the SHAS
‘coumposite did not xb a cite ingase elegy
shih angel specimen acters completely ino tx
pisos. This indies that sehatoed FO fesisfnes cd
fe acldeved seb sbe SICHSIC composite paar at
igher spac slain, socal will Fs aac
comterpam, Llosmeer. the dmumge genemted «0 te
posite pair at 2350 my, ne, soos ered
‘douhosurl Hous aretaze ant corner jo rman
Aetnusedgements
"Theatres hak Pik forthe experts
work dang he commie of this amy. This sm man
Supported 19 “he MDIPC ane the LPT paugricay NASA
(Gln Reseatcb Center, Clevolnd, 2.
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