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“PENGUJIAN “PENGUJ IAN IMP IMPACT” ACT” Sastro 123.13.004 Salma S!a"ar #am$! 123.13.00% A&sa T'ra( ) 123.13.00* K(a& K( a&r+ r+ll ,a( ,a(m& m& 123.13.023 T(&a T('r's&a T('r's&a 123.13.02INSTITUT TEKNOLOGI DAN SAINS
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Sejarah dan tujuan en!uj"an "#a$t %en"& #et'de dan r'&edur en!uj"an "#a$t %en"& atahan ha&"( en!uj"an "#a$t )a*t'r *e!a!a(an #ater"a( ada en!uj"an "#a$t Lat"han &'a( dan e#+aha&an
SEJARAH DAN TUJUAN PENGUJIAN IMPACT S'ara( /'+&a &m/a t'ra& /aa masa /'ra +&a ' +a ar'a 't&a &t+ a!a t'ra& "'om'a /ata( 'tas !a t'ra& /aa a'ra( lasa a/al5 a/al /'ra a /ata(a t'rs'+t aa !a /ata( 6&atara "'om'a ta'r5ta'r. s'a&a a aa !a 'ar5'ar /ata( t'r'la( m'a& +a a&a "'om'a /ata(a && s'r&!a t'ra& /aa saat m+s&m && 't&a 'raa & la+t 'as ata+/+ 't&a a/al s'a 'rla+(. Coto( !a saat t'r'al t'ta "'om'a /ata(a 'tas aala( tra'& Ka/al T&ta&7 !a m'l&tas& 1 MM-3140 sam+'ra Atlat&. ,ENGU%IAN AT
SEJARAH DAN TUJUAN PENGUJIAN IMPACT
P'+&a &m/a m'r+/aa s+at+ /'+&a !a m'++r 'ta(aa a(a t'r(aa/ 'a '+t. Coto(!a '"ormas& /aa +m/'r mo&l saat t'ra&!a t+m+a '7'laaa. Paa &+str& t++a ar& /'+&a &m/a7t aala( m'm+a(a alam /'m&l&(a /'ra7aa a /'ola(a s+at+ a(a /ro+ 'a m''ta(+& s&"at5s&"at mat'r&al!a ar& (as&l /'+&a &m/a7t +a m''a &a!a /ro+s&. MM-3140
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JENIS METODE DAN PROSEDUR PENGUJIAN IMPACT •
Met'de har
P'+&a &m/a7t 'a m'l'taa /os&s& s/'s&m' +& /aa t+m/+a 'a /os&s& (or&$otal. L'ta ta&a (notch) t'/at & t'a( 'a ara( /'m++la ar& 'laa ta&a. 8&asa!a m'to' && &+aa & Am'r&a a a!a 'ara la& t'rmas+ Io's&a.
Fig. general configuraion of an!il" an# "$eci%en in C&ar$' Te"
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JENIS METODE DAN PROSEDUR PENGUJIAN IMPACT •
Met'de I'd
P'+&a &m/a7t 'a m''/&t sala( sat+ ++ s/'s&m' +& !a &l'taa s'7ara 9'rt&al. 8&asa!a m'to' && &+aa & Ir&s.
T+m+a /aa s/'7&m' &la+a t&a t'/at /aa /+sat ta&a m'la&a /aa /os&s& aa &atas ar& ta&a. MM-3140
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JENIS TA(I(AN )NOTCH* PENGUJIAN IMPACT
JENIS METODE DAN PROSEDUR PENGUJIAN IMPACT
Mat'r&als T'st& = C:A#P; TEST I
Gamar m's& +& &m/a7t MM-3140
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JENIS METODE DAN PROSEDUR PENGUJIAN IMPACT %en"& Met'de har
Ke(e+"han •
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Ke*uran!an
P''raa!a l'&( m+a( &/a(am& a &la+a T'aa!a +&"orm & s'/aa /'am/a :ara alat l'&( m+ra( >at+ /'+&a l'&( s&at T+m+a t'/at ar'a s/'s&m' &7'am 6a/at &+aa /aa s/'s&m' !a 'r++ra l'&( 'sar S/'s&m' t&a m+a( 'r's'r
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:a!a a/at &/asa /aa /os&s& (or&$otal S/'s&m' t&a &7'am a& a/at 'r's'r P'+&a (a!a +t+ s/'s&m' !a '7&l 8&a!a /'+&a !a ma(al P'm'aa (a!a /aa sat+ ++ s/'s&m' s'(&a (as&l +ra a& >at+ /'+&a
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JENIS PATAHAN HASIL PENGUJIAN IMPACT •
,eratahan Ber&erat )"+r'u& )ra$ture5
M'l&ata m'a&sm' /'r's'ra &a5&a r&stal & alam a(a !a +l't ?+7t&l'@. 6&taa& 'a /'rm+aa /ata(a 'rs'rat !a 'r't+ &m/'l !a m'!'ra/ 7a(a!a a 'r/'am/&la +ram. •
,eratahan Granu(ar Kr"&ta("n5
6&(as&la ol'( m'a&sm' /'m'la(a ?7l'a9a'@ /aa +t&r5+t&r ar& a(a !a ra/+( ?r&ttl'@. 6&taa& 'a /'rm+aa /ata(a !a atar !a mam/+ m'm'r&a a!a /at+l 7a(a!a !a t&& ?m'&lat@. •
,eratahan a#uran Ber&erat dan Granu(ar5
M'r+/aa om&as& +a '&s /'r/ata(a. MM-3140
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Ga#+ar ,'(a ,atahan Se&"#en Uj" I#a$t
5 B
ada
,ena#an!
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Fig. P&oogra$& of fracure "urface" of A+, "eel C&ar$' - noc& "$eci%en" e"e# a in#icae# e%$eraure" )in C*.
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FA(TOR (EGAGALAN MATERIAL PADA PENGUJIAN IMPACT •
N't$h
Not7( /aa mat'r&al aa m'!'aa t'ra&!a os'tras& t'aa /aa a'ra( !a la7&/ s'(&a mat'r&al m'a& l'&( m+a( /ata( ar'a t&a aa t'ra& '"ormas& /last&s m'a&ata mat'r&al m'a& 'tas. •
Te#eratur
Paa t'm/'rat+r t&& mat'r&al aa 'tas ar'a /'ar+( 9&ras& 'l'tro!a !a s'ma& r'a( '&t+/+ s'al&!a. •
Stra"nrate
Paa +& &m/a7t stra& rat' !a &'r&a saat t&& s'(&a &sloas& t&a s'm/at 'r'ra t'ra& '"ormas& /last&s !a m'!'aa /ata( trasra+lar /aa mat'r&al MM-3140
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LATI:AN SOAL 6AN PEM8A:ASAN /. Seela& #ila0u0an $engu1ian i%$ac #engan i%$ac e"ing %ac&ine J2+33 #i#a$a &arga energi 'ang #i"era$ a#ala& 43 1oule. Pan1ang #an le5ar $ena%$ang $er%u0aan "a%$el u1i a#ala& /3 %% #an 6 %%. Tenu0an &arga i%$a0 #ari $engu1ian er"e5u7 Ja8a5an 9 E : 43 1oule #an A : )6;/3*%%<= : 63 %%<= HI : E > A : 43 1oule> 63%%<= : /./=? 1oule>%%<= =. Di0ea&ui energi "e5elu% #an "e"u#a& u%5u0an anara $en#ulu% #engan "a%$el u1i a#ala& @@.+ 1oule #an ?+.? 1oule. Harga i%$a0 'ang #i&a"il0an a#ala& 3.=4 1oule>%%<=. 2era$a lua" $er%u0aan #ari "a%$el u1i Ja8a5an 9 E : )@@.+ ?+.?* 1oule : =+.6 1oule #an HI : 3.=4 1oule>%%<= A : E > HI : =+.6 1oule > 3.=4 1oule>%%<= : 6=.3, %%<= MM-3140
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LATI:AN SOAL 6AN PEM8A:ASAN +. Tinggi anara $en#ulu% #engan lanai "e5elu% #an "e"u#a& 5eru%5u0an #engan "a%$el u1i a#ala& /.? % #an 3.B %. Ma""a $en#ulu% a#ala& 4 0g #an lua" $ena%$ang "a%$el u1i a#ala& 63 %%<=. 2era$a &arga i%$a0 'ang #i#a$a Ja8a5an 9 E : %.g)&/&=* : 40g./3%>"<=)/.?3.B* : 44 1oule HI : E > A : 44 1oule > 63 %%<= : /.=+@? 1oule>%%<= B. Ji0a "$e"i%en #i5eri0an e%$eraur 'ang 5er5e#a5e#a %a0a 5agai%ana &u5ungann'a #engan &arga i%$a0 'ang #i#a$a Jela"0an7 Ja8a5an 9 0enai0an e%$eraur a0an %en'e5a50an 0enai0an energi 'ang #i"era$ 0arena %aerial %en1a#i "e%a0in #ucile %a0a HI a0an a0an "e%a0in %ening0a. Na%un er#a$a 5aa" 0enai0an e%$eraure 'aiu e%$eraure "ofening. MM-3140
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G5. Efe0 Te%$eraur er&a#a$ (eanggu&an I%$ac
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REFERENSI 1. Callister, D. William, Materials Science And Engineering 8th Edition
2. M'tal :aoo N&t( E&t&o Dol+m' * M'7(a&7al T'st& ASM1*B.
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