IS 13237: Metallic foils - Tension testing

11 Pages·1991·1.2 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
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timely dissemination of this information in an accurate manner to the public.
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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 13237 (1991): Metallic foils - Tension testing [MTD 3:
Mechanical Testing of Metals]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

Indian Standard
METALLIC FOIL - TENSION TESTING
I
UDC 669-416 : 620’178’322’2

0 BIS 1991
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
.
December 1991 Price Group 2
lacinahceM gnitseT fo Metals lanoitceS ,eettimmoC DTM 3
FOREWORD
sihT naidnI dradnatS was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard dezilanif yb
eht lacinahceM gnitseT fo Metals lanoitceS eettimmoC had neeb devorppa yb eht lacigrullateM
gnireenignE noisiviD .licnuoC
ehT gnisaercni esu fo cillatem sliof ni suoirav saera has edam ti elbarised ot publish a standard
rof noisnet gnitset fo cillatem sliof hcihw nac evig senilediug gnidrager apparatus, tset ,nemiceps
and ,serudecorp tnemeruseem fo .nemiceps noisneT stset edivorp noitamrofni no eht htgnerts
dca ytilitcud fo slairetam rednu laixaicu elisnet .sesserts sihT noitamrofni yam eb lufesu ni
ncsirapmoc fo ,slairetam ytilauq tnetnoc and .ngised
nI eht noitaraperp fo this standard, assistance has neeb devired morf MTSA E 34587 dohteM‘ fo
noisnet gnitset fo cillatem ,’sliof issued yb naciremA yteicoS rof gnitseT and ,slairetaM USA.
nI gnitroper eht stluser fo a tset edam ni ecnadrocca htiw this standard, fi eht lanif ,eulav devresbo
ro ,detaluclac is ot eb dednuor ,ffo ti shall eb enod ni ecnadrocca htiw SI 2 : 1960 seluR‘ rof
gnidnuor ffo laciremun seulav ( revised )‘.
SI 73231 '1991:
Indian Standard
METALLIC FOIL - TENSION TESTING
1 EPOCS ,nethgit an elbarisednu gnidneb stress yam eb
.decudortni nehW srenil .era desu dniheb eht
sihT standard srevoc eht dohtem fo noisnet ,segdew yeht must eb fo eht emas ssenkciht and
gnitset fo cillatem sliof at moor .erutarepmet rieht secaf shall eb talf and .lellarap roF reporp
,gnippirg ti is elbarised that eht eritne htgnel fo
2 SECNEREFER eht detarres ecaf fo hcae egdew eb ni tcatnoc
htiw eht .nemiceps
ehT gniwollof naidnI Standards era yrassecen
stcnujda ot this standard:
4.2.2
Smooth Face Grips
IS No. Title roF sliof less than 670’0 mm ti’ssenkciht yam eb
cillateM slairetam - -ireV elbarised that eht grips evah htooms secaf and
1828
( traP 1 ) : 1991 noitacif fo citats laixainU that eht gnippirg erusserp eb tuoba 7’0 MPa rof
gnitset senihcam : traP 1 hcae 520’0 mm fo nemiceps .ssenkciht
elisneT gnitset senihcam
(
second revision ) 5 TEST SPECIMEN
5069 : 1982 yrassolG fo smret gnitaler
ot sdohtem fo lacinahcem
5.0 General
gnitset fo slatem tsrif(
revision ) tseT snemiceps shall eb debircserp ni eht
tcudorp noitacificeps rof eht lairetam gnieb
3 SNOITINIFED .detset
ehT snoitinifed fo smret gnitaler ot noisnet
5.1 epyT A nemicepS
gnitset gniraeppa ni SI 5069 : 1982 shall ylppa
ot eht smret desu ni this standard. epyT A snemiceps shall eb ni ecnadrocca htiw
eht 5’21 mm teehs epyt nemiceps nwohs ni
4- SUTARAPPA .giF 1. oT diova laretal gnilkcub ni stset fo
emos ,slairetam eht muminim radius fo eht tellif
1.4
Testing Machines dluohs eb 19 ,mm ro eht htdiw fo eht pirg sdne
dluohs eb ylno ylthgils regral than eht htdiw fo
senihcaM desu rof noisnet gnitset shall mrofnoc
eht decuder ,noitces ro htob and eht decuder
ot eht stnemeriuqer fo SI 1828 ( traP 1 ) : 1991.
ehT‘ sdaol desu ni gninimreted elisnet ,htgnerts noitces dluohs eb at tsael 20 tnecrep regnol than
eht eguag .htgnel
dleiy htgnerts and dleiy tniop shall eb nihtiw
eht deifirev gnidaol egnar fo eht gnitset .enihcam
5.2 Type B Specimen
2.4- Gripping Devices
epyT B snemiceps shall eb ni ecnadrocca htiw
eht 12.5 mm edis lellarap dedis nemiceps nwohs
-4.2.0 General
ni .giF 1.
suoiraV sepyt fo gnippirg secived yam eb desu
ot timsnart eht derusaem daol deilppa yb eht
gnitset enihcam ot eht tset .nemiceps oT erusne 6 PROCEDURES
laixa elisnet stress nihtiw eht eguag ,htgnel eht
1.6 epyT A nemicepS noitaraperP
sixa fo eht tset nemiceps shall edicnioc htiw eht
ertnec. enil fo eht sdaeh fo eht gnitset .enihcam
ehT nemiceps shall eb denihcam ni skcap and
ynA erutaraped morf this ertnec enil yam
shall eb denimaxe rednu tuoba 20 -acifingam
ecudortni gnidneb sesserts that era ton dedulcni X
noit ot enimreted that eht segde era htooms and
ni eht usual stress noitatupmoc ( daol dedivid
that ereht era on ecafrus ,sehctarcs ro sesaerc egde
yb lanoitces-ssorc aera .)
seitiunitnocsid shall eb .detcejer ehT gnillim
rettuc shall eb deneprahs ro dewener nehw
4.2.1
Wedge Grips .yrassecen nehW gninihcam emos sessenkciht
gnitseT senihcam yllausu era deppiuqe htiw and srepmet fo lairetam ti yam eb yrassecen ot
egdew- grips. esehT egdew grips yllareneg evaelretni eht samples htiw drah muinimula
hsinruf a yrotcafsitas snaem fo gnippirg gnol ,teehs a ,citsalp ro rehto elbatius .lairetam roF
snemiceps fo elitcud slairetam ni eht rekciht liof emos slairetam ti yam eb elbarised ot hsilop
.seguag ,fI rof yna nosaer eno pirg fo a riap eht segde fo eht snemiceps rehtie yllacinahcem
secnavda- rehtraf than eht rehto as eht grips ro yb .gnihsilop-ortcele
I
.-
:33231SI
1991
nemicepS
-r )‘----~-
epyT A epyT B
mm mm
G - eguaG htgnel SO.0 f 0.1 125
W - htdiW 12.50 f 0.25 129
T - ssenkcihT ssenkcihT fo liof ssenkcihT fo liof
R - suidaR fo ,tellif Min 19
L - Over all ,htgnel Min 200 230
A - htgneL fo decuder ,noitces niM 60 -
B - htgneL fo pirg ,noitces Min 50
c - htdiW fo pirg noitces .xorppa 20 125
NOTE - roF epyT A ,snemiceps eht sdne fo eht decuder noitces llahs ton reffid ni htdiw yb erom naht
0.05 .mm Also ereht yam eb a gradual esaerced ni htdiw morf eht sdne ot eht ,ertnec tub eht htdiw at
rehtie dne llahs ton eb erom naht O-10 mm regral naht eht htdiw at eht .ertnec
.GIF 1
FOIL TENSION TEST SPECIMEN
6.2 Type B Specimen Preparation
deeps fo gnitset yam eb desu up ot eno flah eht
ehT ,snemiceps ylralucitrap fo tfos and niht deificeps dleiy htgnerts ro dleiy ,tniop ro up ot
drah ,slatem yam eb deraperp yllaudividni yb eno retrauq eht deificeps elisnet ,htgnerts -hcihw
esu fo a elbuod dedalb .rettuc ehT gnittuc reve is .rellams ehT deeps evoba this tniop
segde dluohs eb ,detacirbul fi yrassecen htiw a shall eb nihtiw eht stimil .deificeps fI tnereffid
lairetam hcus as cirets dica ni lohocla ro rehtona deeps snoitatimil era deriuqer ni gninimreted
elbatius .lairetam ehT dehsinif snemiceps shall dleiy ,htgnerts dleiy ,tniop elisnet ,htgnerts and
eb denimaxe rednu tuoba 20 X noitacifingam ot ,noitagnole yeht dluohs eb detats ni eht tcudorp
enimreted that eht segde era htooms and ereht .noitacificeps nI eht ecnesba fo yna deificeps
era on ecafrus sehctarcs ro .sesaerc snemicepS snoitatimil no eht deeps fo gnitset eht gniwollof
gniwohs elbinrecsid ecafrus ,sehctarcs ,sesaerc ro lareneg selur shall .ylppa
egde seitiunitnocsid shall eb .detcejer
6.4.1 ehT deeps fo gnitset shall eb hcus that eht
6.3 Specimen Measurement sdaol and strains desu ni gniniatbo eht tset
stluser era yletarucca .detacidni
6.3.1 Thickness

6.3.1.1 ssenkcihT fo snemiceps nekat morf tfos 6.4.2 nehW dleiy htgnerts ro dleiy tniop is ot eb
sliof 520’0 mm and renniht shall eb denimreted ,denimreted eht etar fo stress noitacilppa shall
ot an ycarucca fo 2 tnecrep fo eht ssenkciht yb ton deecxe 12 MPa/s tub shall eb retaerg than
gnihgiew ro yb gnirusaem .secived 2’1 MPa/s. ehT deeps yam eb desaercni retfa
lavomer fo eht ,retemosnetxe tub ti shall ton
6.3.1.2 ehT ssenkciht fo snemiceps nekat morf
deecxe 5’0 mm/mm fo decuder noitces ( ro
drah slairetam ro slairetam 520’0 mm and
ecnatsid neewteb grips rof snemiceps ton gnivah
retaerg ni ssenkciht yam eb denimreted yb esu
decuder noitces ) rep .etunim
fo an ,retemitpo an epyt-lacirtcele gnirusaem
,ecived ro reinrev ,retemorcim dedivorp that eht 6.4.3 ehT etar fo strain shall eb 60’0 ot 5’0 rep
ssenkciht is derusaem ot at tsael eht tseraen 2 ,setunim nehw eht dleiy htgnerts is ton gnieb
.tnecrep ,denimreted tpecxe nehw eht tcudorp -acificeps
noit seriuqer a tnereffid .deeps
NOTE nehW- snemiceps ro selpmas era ,dehgiew
eht ssenkciht llahs eb detupmoc ot eht tseraen
6.4.4 nehW dleiy htgnerts is ot eb ,denimreted
0.005 mm dna ylbareferp ot eht tseraen 0.0005 mm
yb esu fo eht :alumrof eht strain etar shall eb 200’0 ot 010’0 rep
,etunim litnu eht stress is evoba eht dleiy
T = W/AD
.htgnerts
erehw
T = ssenkciht fo nemiceps fo ,selpmas ni ,mm 6.5 gnidleiY htgnertS
W = ssam fo nemiceps ro elpmas ni ,gm
enimreteD dleiy htgnerts yb eht tesffo ro
A = area fo nemiceps ro elpmas ni ,*mm dna
daol-rednu-noisnetxe ,dohtem as .swollof
D = ytisned fo ,lairetam ni ,cc/g
6.5.1 Offset Method .
6.3.2 Widr h
oT enimreted dleiy htgnerts yb eht tesffo‘
erusaeM and drocer eht nemiceps htdiw
’dohtem ti is yrassecen ot eruces data -otua(
noisnemid ot eht tseraen 50’0 .mm cihparg ro )laciremun morf hcihw a stress
strain margaid yam eb drawn. nehT no eht -sserts
6.4 Speed of Testing
strain margaid ( .giF 2 ) yal ffo mo lauqe ot eht
6.4.0 Unless esiwrehto ,deificeps yna tneinevnoc deificeps eulav fo eht ,’tesffo‘ draw nm lellarap
2
IS 13237 : 199i
A
x
-ti
,5
--J- 0
i
om- SPECIFIED OFFSET
om=SPECIFIED EXTENSION -
UNDER-LOAD
FIG. 2 STRESS-STRAIN DIAGRAM FOR FIG. 3 STRESS-STRAIND IAGRAM FOR
DETERMINATION OF DLEIY HTGNERTS DETERMINATION OF YIELD STRENGTH BY
YB THE OFFSETM ETHOD THE EXTENSION-UNDER-LOAD METHOD
ot and thus ,retacol eht noitcesretni fo eht
oA yam eb ylthgil dekram no eht nemiceps yb
mn htiw eht stress strain margaid ( etoN 2 gnibircs enif senil htiw a 50’0 mm radius rebircs
fo 6.5.2 ). nI gnitroper seulav fo dleiy and a noisicerp dnuorg .etalpmet ehT rebircs
htgnerts deniatbo yb this ,dohtem eht deificeps
senil dluohs eb tuoba 3 mm gnol and dluohs
seulav fo tesffo desu dluohs eb detats ni -nerap ton eb decalp raen eht nemiceps egde ro ni eht
seseht retfa eht mret dleiy .htgnerts suhT : dleiy tellif .iidar
htgnerts tesffo( 2’0 !y ) = 360 MPa.
6.7.2 nehW noitagnole is ot eb denimreted and
6.5.2 Extension-Under- Load Method epyT B snemiceps era ,desu eht muminim and
derreferp ecnatsid neewteb grips dluohs 521.eb
roF tset ot enimreted eht ecnatpecca ro noitcejer
,mm and eht noitagnole yam eb denimreted morf
fo lairetam esohw niarts-sserts scitsiretcarahc
eht secnereffid ni eht ecnatsid neewteb eht grips
era llew nwonk morf suoiverp stset fo ralimis
erofeb gnitset and at .erutcarf nehW a epyT B
lairetam ni hcihw niarts-sserts diagrams erew
nemiceps is detset using a evitisop deeps-daeh
,dettolp eht latot strain gnidnopserroc ot eht
epyt gnitset ,enihcam eht noitagnole yam eb
stress at hcihw eht deificeps tesffo srucco lliw
eb nwonk nihtiw yrotcafsitas stimil : erofereht nekat morf eht daol noitagnole graphs detupmoc
yb eht :noitauqe
ni hcus stset a deificeps latot strain yam eb
,desu and eht stress no eht ,nemiceps nehw eht daeH deeps X mm fo trahc
latot strain is ,dehcaer is eht eulav fo eht dleiy
,noitagnolE tnecrep
htgnerts ees( .giF 3 .)
= daeh deeps x mm fo trahc X ool
SETON
trahc deeps X eguag htgnel
1 Automatic devices are avaiIabIe that determine 6.7.3 nehW noitagnole is ,detroper eht eulav
offset yield strength without plotting stress-strain
shall eb nwohs ot eht tseraen 5’0 .tnecrep
curve. Such devices may be used if their accuracy
has been demonstrated to be acceptable.
7 TNEMECALPER FO SNEMICEPS
2 If the load drops before the specified offset is
reached, technically the material does not have a A tset nemiceps yam eb dedracsid and a
yield strength ( for that offset ) but the stress at
tnemecalper nemiceps nekat morf eht emas
maximum load before the specified offset is reached
may be reported as the yield strength. ,elpmas fi ,elbissop ni eht gniwollof :sesac
)a ehT lanigiro nemiceps had ecafrus
6.6 Tensile Strength
sehctarcs ro ;sesaerc
etaluclaC eht elisnet htgnerts yb gnidivid eht
)b ehT lanigiro nemiceps had a ylroop
mumixam daol deirrac yb eht nemiceps yb eht
denihcam ;ecafrus
lanigiro lanoitces-ssorc aera fo eht .nemiceps
)c ehT lanigiro nemiceps had eht gnorw
6.7 Elongation ;snoisnemid
6.7.1 nehW noitagnole is ot eb denimreted and )d ehT s’nemiceps seitreporp erew degnahc
epyT A snemiceps era ,desu eht 50 mm htgnel esuaceb fo roop gninihcam ;secitcarp
IS 13237 : 1991
)e ehT tset erudecorp erew ;tcerrocni 8 TEST REPORT
)f ehT erutcarf was edistuo eht eguag ehT tset troper shall edulcni eht gniwollof
;htgnel :noitamrofni
)a lateM ro ,yolla ,repmet tol ro taeh
)g roF noitagnole ,snoitanimreted eht
;rebmun
erutcarf was tedistuo eh elddim flah fo eht
eguag htgnel nehw using epyT A -iceps )b tseT nemiceps noitatneiro and ;epyt
;snem and
)c sdohteM fo gninimreted dleiy htgnerts and
;noitagnole and
)h erehT was a noitcnuflam fo eht gnitset
.tnempiuqe )d lacinahceM .seitreporp

3
dradnatS Mark
I
ehT esu fo eht dradnatS Mark is denrevog yb eht snoisivorp fo eht Bureau of Indian

Standards Act, 2986 and eht seluR and snoitalugeR edam .rednuereht ehT dradnatS Mark no
stcudorp derevoc yb an naidnI dradnatS syevnoc eht ecnarussa that yeht evah neeb decudorp
ot ylpmoc htiw eht stnemeriuqer fo that standard rednu a llew denifed metsys fo ,noitcepsni
gnitset and ytilauq lortnoc hcihw is desived and desivrepus yb SIB and detarepo yb eht -orp
.recud dradnatS dekram stcudorp era osla ylsuounitnoc dekcehc yb SIB rof ytimrofnoc ot
that standard as a rehtruf .draugefas sliateD fo snoitidnoc rednu hcihw a ecnecil rof eht esu
fo eht dradnatS Mark yam eb detnarg ot srerutcafunam ro srecudorp yam eb deniatbo morf
eht uaeruB fo naidnI Standards.