Tiêu chuẩn iso 19095 4 2015

© ISO 2015 Plastics — Evaluation of the adhesion interface performance in plastic metal assemblies — Part 4 Environmental conditions for durability Plastiques — Évaluation des performances de l’interf[.]

Plastics — Evaluation ofthe adhesion

Part 4:

Plastiques — Év lu tion de s pe frma ce s de l’inte fc d’adh r nc

da s le s assembla e s plastique-métal —

Partie 4 : Co ditions en iro nementale s p ur la dura ilité

Fir t edition

2 1 -0 -0

Refer ence n mb r

ISO 1 0 5-4:2 1 (E)

i © ISO 201 – A ll rights reserved

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F reword i v

Introduction v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms an definitions 1

4 Test specimen 4

4.1 Form of tes spe imen 4

4.2 Condition of tes spe imen 4

5 Test pr oc edure 4

5.1 Temperatur e depen enc tes 4

5.1.1 A ppar atus 4

5.1.2 Tes pr oc d r e 5

5.1.3 Pr esentation of r esult 5

5.2 The mal shock tes 5

5.2.1 A ppar atus 5

5.2.2 Tes pr oc d r e 5

5.2.3 Pr esentation of r esult 6

5.3 Temperatur e/Humidity cyclc tes 6

5.3.1 A ppar atus 6

5.3.2 Tes pr oc d r e 6

5.3.3 Pr esentation of r esult 7

5.4 High temperatur e an hig h h midity tes 7

5.4.1 A ppar atus 7

5.4.2 Tes pr oc d r e 7

5.4.3 Pr esentation of r esult 8

5.5 Salt mis tes

8 5.5.1 A ppar atus 8

5.5.2 Tes pr oc d r e 8

5.5.3 Pr esentation of r esult 8

5.6 Fatig ue tes 8

5.6.1 Principle 8

5.6.2 General con itions 8

5.6.3 A ppar atus 8

5.6.4 Tes pr oc d r e 9

5.7 Report 9

A nne x A (normative) Staircase metho (or Dix n and Mo d’s metho ) 10

A nne x B (normative) Data r eclas ificatio etho 12

ISO (he Int ernational Org nization for Stan ardization) is a worldwidefede ation of national s an ards

b dies (ISO membe b dies) The work of pr p ring Int ernational Stan ards is normaly car ied out

through ISO t ech ical committ ees Each membe b dy int er st ed in a subje t for w hich a t ech ical

committ ee has be n es a lshed has the right t o be r pr sent ed on that committ ee Int ernational

org nizations, g ove nmental an non-g ove nmental, in laison with ISO, also take part in the work

ISO cola orat es closely with the Int ernational Ele trot ech ical C mmis ion (IEC) on al matt ers of

ele trot ech ical s an ardization

The proc d r s used t o develo this document an those int en ed for it furthe maint enanc ar

desc ibed in the ISO/IEC Dir ctives, Part 1 In p rticular the dife ent a pro al c it eria ne ded for the

dife ent ty es of ISO document should be not ed This document was draft ed in ac ordanc with the

edit orial rules of the ISO/IEC Dir ctives, Part 2 ( e www.iso.org dir ctives)

A tt ention is drawn t o the p s ibi ity that some of the element of this document ma be the subje t of

p t ent right ISO shal not be held r sponsible for identifying any or al such p t ent right Detais of

any p t ent right identified d ring the develo ment of the document wi be in the Introd ction an / r

on the ISO ls of p t ent de larations r c ived ( e www.iso.org p t ent )

Any trade name used in this document is information given for the convenienc of use s an does not

cons itut e an en orsement

F or an ex lanation on the meaning of ISO spe ific t erms an ex r s ions r lat ed t o conformity

as es ment, as wel as information a out ISO’ s adhe enc t o the WTO principles in the Te h ical

Bar ie s t o Trade (TBT) se the fol owing URL: F or word - Sup lementary information

The committ ee r sp nsible for thisdocument is ISO/TC61, Plas tic s ,Subcommitt ee SC 1 , Produc ts

ISO 1 0 5 consis s ofthe folowing p rt , u de the g ene al title Plas tic s — Ev lu tio o the adhes io

inte fc e pe f rma c e in plas tic-metal as s embles:

—Part 1: Guidelnes fr the a pro ch

—Part 2 : Tes t s pec imens

—Part 3 : Tes t meth ds

—Part 4 : Enviro mental c onditions fr dura i t y

Structur s of het erog eneous mat erials ar being man factur d in the a ut omo ies an ae osp c

in us ry se t ors w he e highe safety margins ar r q ir d

The exis ing t es methods ar not a pro riat e be a use the ev luation of the ad esive int erfac is

diff icult as the p lyme mat erial has a r latively low me hanical s r ngth an the efor fractur s

out ide the joint The efor , it is ne es ary t o develo a methodolo y for the ev luation of thead esive

int erfac s

A t es method t o ev luat e ac urat ely the adhesion int erfac pe formanc or s andardization of long

-t erm ev luation un e harsh environment is also ne es ary

The method in ISO 1 0 5 is int en ed t o ensur that the int egrity of the joint is r alz d through the

int erfac an that rac a i ity of the v lue impro es the data comparison

This part of ISO 1 09 def ines the con itions t o ev luat e the long -t erm d ra i ty

Plastics — Evaluation ofthe adhesion interfac e

Part 4:

SAFETY STATEMENT — Per o s using this part of ISO 1 90 5 sho ld be famiiar with normal

laboratory practice, if ap lcable This part of ISO 1 909 does not purport to addres al of the

safety pro lems, if any, as ociated with its use It is the respo sibiity of the use to establsh

appropriate safety and he lth practices and to ensure compl ance with any re ulatory

co ditio s It is recognized that some of the materials permitted in this part of ISO 1 909 might

have a ne ative enviro mental impact As technological advances le d to more ac eptable

alternatives for such materials, they wil be el minated to the gre test extent p s ible A t the end

of the test, care sho ld be taken to dispose of al waste in an ap ro riate manne in ac ordance

with local re ulatio s

This p rt of ISO 1 09 spe if ies the environmental con itions t o ev luat e the d ra i ity for the adhesion

int erfac pe formanc in plas ic -metal as embles

2 Normati ve r eferences

The folowing document , in w hole or in p rt, ar normatively r fe enc d in this document an ar

in ispensa le for it a pl cation F or dat ed r fe enc s, only the edition cit ed a pl es F or u dat ed

r fe enc s, the lat es edition of the r fe enc d document ( inclu ing any amen ment )a pl es

ISO 47 , Plas tic s — Voc ab lary

ISO 1 09 -1:2 1 , Plas tic s — Ev lu tio o the adhes io inte fc e pe frma c e in plas tic-metal

as s embles —Part 1: Guidelne fr the a pro ch

ISO 1 0 5- 2, Plas tic s — Ev lu tio o the adhes ion inte f c e pe frma c e in plas tic-metal as s embles —

Part 2 : Tes t s pec imens

ISO 1 0 5-3, Plas tic s — Ev lu tio o the adhes io inte f c e pe f rma c e in plas tic-metal as s embles —

Part 3 : Tes t meth ds

IEC 6 0 8- 2-1 , B as ic env iro mental tes tin proc edur s — Part 2-1 : Tes ts — Tes t Ka: S lt mi s t

3 Terms and definitions

F or the purposes of this document, the t erms an def initions given in ISO 47 an the folowing a ply

3.1

she r stres

τ

<fatigue t es > s r s det ermined b dividing the for eb the b n ed surfac ar a

Note 1t o entry: It is e pres ed in me apas als (MPa)

static she r stres

τ

<fatigue t es > a e ag e s atic shear s r s at ruptur as det ermined b ISO 458

Not e 1t o entry: It is e pres ed in me apas als (MPa)

3.3

stres cycle

<fatigue t es > smales p rt of the s r ss /time fu ction w hich is r peat ed at r gular int erv ls

Not e 1t o entry: It is of sin soidal form (se Figure 1)with u d lating she r

Not e 2 t o entry: Cyclic stres can b considered to b the su erposition of an alternating stres on a static stres

which is the me n stres

Figure 1 — F atigue stres cycle

3.4

maximum stres

τ

ma

<fatigue t es > gr at es alg ebraic v lue r ached at r gular int erv ls b the s r s

Not e 1t o entry: It is e pres ed in me apas als (MPa)

3.5

minimum stres

τ

min

<fatigue t es > smales alg ebraic v lue r ached at r gular int erv ls b the s r s

Not e 1t o entry: T is stres shal always b positive an is e pres ed in me apas als (MPa)

3.6

me n stres

τ

m

<fatigue t es > alg ebraic mean of the ma imum an minimum s r s es

Not e 1t o entry: It is e pres ed as:

m ma

= +

min

2

3.7

stres ampltu e

τ

a

<fatigue t es > alt ernating s r s eq al t o half the alg ebraic dife enc betwe n the ma imum an

minimum s r s es

Note 1t o entry: It is e pres ed in me apas als (MPa)

Note 2t o entry: It is e pres ed as:

τ

a ma

=

−

min

2

3.8

fatigue lmit

τ

<fatigue t es > lmiting v lue w hich the s r s ampltu e τ

a

a pro ches w hen the n mbe of cycles

be omes very larg e, for a given mean s r s τ

m

Note 1 t o entry: F or some materials, stres amplitu e ver us the n mb r of cycles do s not re ch a limiting

value but dec e ses constantly on inc e sing the n mb r of cycles In this case, it is useful t o det ermine a limit of

en urance

3 9

l mit of end rance

τ ( N

F )

<fatigue t es > shear s r s det ermined at a spe ific n mbe of fa ult t es cycles N

F

Note 1t o entry: It is e pres ed in me apas als (MPa)

Note 2t o entry: T e tests are car ied out at constant τ

m , an the results should b present ed in the form:

τ ( N

F , τ

m ) in me apas als (MPa)

3.1

service l fe

N

<fatigue t es > n mbe of s r s cycles a pled t o a spe imen u ti it has r ached the chosen en of the

t es

Note 1 to entry: Where it has not ailed, the service life is not def ined but is t ermed gre t er than the test d ration

3.1

cycle ratio

n/ N

<fatigue t es > ratio of the n mbe of a pled cycles (n )t o these vic l fe ( N)

Note 1t o entry: T is ratio is used in t ests with lo d b arings, tog ether with an SN curve (Wo hler’ s curve)

3.12

SN curve

<fatigue t es > curve, alowing the r sis anc of the mat erial t o be se n, w hich in icat es the r lationship

o se ved ex e imentaly betwe n se vic l fe N, shown conventional y in a scis ae (lo arithmic scale)

an s r s τ

a

or τ

ma shown in ordinat es in l near scale ( y ical curve in Figur 1)

Note 1 t o entry: T is curve is esta lished by keeping τ

m constant The SN curve is def ined by the relationship

b tween amplitu e of stres an service life On this curve (Figure 2), we can distinguish

—the en urance zone where, for a given stres ,failures as wel as non-failures for a n mb r of fault t est cycles NF

can b identif ied, an

—the fatigue zone where, for a given stres , al the specimens fail at he en of a n mb r of cycles les than the

n mb r of conventional fault t est cycles N

F mentioned a ove

Key

PA polyamide

P polypr op lene

P S polyphen ylene sulfide

Figure 2 — S mi log rithmic plots of typical SN curves of plastic-aluminium 50 2 as embl es

tested at 30 Hz at ro m temperature

4 Test specimen

4.1 F r m oftest specimen

S e ISO 1 0 5- 2

4.2 Condition of test specimen

S e ISO 1 0 5-3

5 Test pr oc edur e

5.1 Temperatur e dependenc e test

5.1.1 A pparatus

S e ISO 1 0 5-1

5.1.2 Test pr oc edure

Aft er keeping the t es spe imen un e the con ition desc ibed in ISO 1 09 -1 for 48 h, sele t the

cor esp n ing t empe atur groups from (−40 ± 3) °C, (− 20 ± 3) °C, (0 ± 2) °C, (40 ± 2) °C, (6 ± 2) °C,

(80 ± 2) °C, (1 0 ± 2) °C, (1 0 ± 3) °C, (140 ± 2) °C, (1 0 ± 3) °C, and (1 0 ± 2) °C an car y out the t es

The t es spe imen shal be kept at the spe ified t empe atur for 1 min

5.1.3 Presentation of result

Based on the s r ngth in r spe tive t empe atur o tained in 5.2, develo a s r ngth-t empe atur lne

gra h Figur 3 show s an ex mple

Key

X temper atur e ( C)

Y str eng th (MPa)

Figure 3 — S mple l ne graph of strength-temperature

5.2 Ther mal shock test

5.2.1 A pparatus

S e ISO 1 0 5-1

5.2.2 Test pr oc edure

Aft er ke ping the t es spe imen u de the con ition desc ibed in ISO 1 09 -1 for 48 h, lea e the t es

spe imen in a cons ant low t empe atur chambe pr set t o (−40 ± 3)°C for (2 ± 0,5) h

Take the t es spe imen out from the chambe an plac it immediat ely in the chambe adjust ed t o

the high t empe atur shown in Ta le 1, an r peat the t empe atur cycle as spe if ied in Ta le 1 an

Figur 4

R espe tively, aft er 1 , 5 , 1 0, 2 0, 5 0, 1 0 0 r petitions of the t empe atur cycle, take the t es

spe imen out from the chambe , lea e it un e the con ition desc ibed in ISO 1 0 5-1 for mor than

2 h, an car y out the t es

Table 1 — Co ditio s of thermal shock test

Clas ification

Figure 4 — Thermal shock test pattern

5.2.3 Presentation of result

Based on the pe formanc r sult aft er each n mbe of r petitions o tained in 5.1.2, develo a s r

ngth-r petitions lne gra h

5.3 Temperatur e/Humidity cycl c test

5.3.1 A pparatus

S e ISO 1 0 5-1

5.3.2 Test proc edure

Aft er keeping the t es spe imen u de the con ition desc ibed in ISO 1 0 5-1 for 48 h, plac the pie e

in a cons ant t empe atur an h midity chambe an set the chambe t o (2 ± 2) °C and (6 ± 2 ) %

of h midity Lea e it u de such con ition for (2,5 ± 0,5) h an con uct the t es in ac ordanc with the

p tt erns spe if ied in Figur 5

R espe tively, aft er 2, 5, 1 , 2 r petitions of each p tt ern, take the t es pie e out from the chambe ,

lea e it u de thecon ition for betwe n 1 h an 2h as desc ibed in ISO 1 0 5-1, an car y out the t es

Key

Y temper atur e ( C)

1 (60 ± 2) °C, (9 ± 5) % RH

2 45± 2)°C, (9 ± 5)% RH

3 (− 0± 2)°C

4 (2 ± 2) °C, (65 ± 2) % RH

5 interval w ithout h midity contr ol

Figure 5 — Temperature/Humidity cyclc test pattern

5.3.3 Pr esentation of r esult

Based on the pe formanc r sult aft er each n mbe of r petitions o tained in 5.3.2, develo a s r

ngth-r petitions lne gra h

5.4 Hig h temperature and hig h humidity test

5.4.1 A pparatus

S e ISO 1 0 5-1

5.4.2 Test pr oc edure

Aft er ke ping the t es spe imen un e the condition for 48 h asdesc ibed in ISO 1 0 5-1, car y out the

t es in ac ordanc with thecon itions spe if ied in Ta le 2

Aft er lea ing a t es spe imen in a chambe r spe tively for 24 h, 48 h, 1 8 h, 3 6 h, 6 2 h, 1 0 0 h,

1 5 0 h, 2 00 h of t es ing time, take the t es spe imen out from the chambe , lea e it for mor than 2 h

un e the con ition desc ibed in ISO 1 0 5-1:2 1 , Clause 4, an car y out the t es

Table 2 — Co ditio s of high temperature and high humidity test

R elative h midity ( 85 ± 2)%

5.4.3 Presentation of result

Based on the pe formanc r sult or each t es ing time o tained in 5.4.2, develo a s r ngth-t es ing time

l ne gra h

5.5 S lt mist test

5.5.1 A pparatus

S e ISO 1 0 5-1

5.5.2 Test proc edure

Aft er keeping the t es pie e u de the con ition for 48 h as desc ibed in ISO 1 0 5-1:2 1 , Clause 4,

car y out he t es in ac ordanc with the pro isions of IEC 6 0 8- 2-1 , Cla use 4 t o Clause 7

Aft er lea ing a t es pie e in a chambe r spe tively for 24 h, 48 h, 9 h, 1 8 h, 3 6 h, 6 2 h, 1 00 h,

1 5 0 h, 2 0 0 h of t es ing time, take the t es pie e out from the chambe , and clean for 5 min with

ru ning ta wat er Subseq ently, clean it with dis i led wat er or deionization wat er an r mo e

drip ing using an air-spra He e, the t empe atur of wat er used for cleaning shal be 3 °C or lowe

Aft er r mo ing the drips, lea e the t es pie e for betwe n 1 h an 2 h u de the con ition desc ibed in

ISO 1 0 5-1:2 1 , Clause 4 and car y out the t es

5.5.3 Presentation of result

Based on theout come of 5.5.2, develo a s r ngth-t es time gra h

5.6 F tig ue test

5.6.1 Pr inciple

The spe imen is cycl caly s r s ed in a wa that can ber g rded as the supe p sition of an alt ernating

s r s on a s atic s r s w hich is the mean s r s

The n mbe of cycles at faiur of the spe imen is det ermined for a given τ

m

an τ

a These v lues ar

used t o es a lsh SN curves w hich then pe mit the es imation of the confidenc zone conc rning the

fatigue r sis anc of a joint

5.6.2 General c onditio s

Plas ic -metal as embles can be subje t t o c e p, even at ambient t empe atur , un e the efe t of a

non-z ro mean s r s τ

m E sur befor the fatigue t es that the mean s r s es used d ring the t es

pe iod do not cause a fai ur d e t o c e p t o be at ribut ed t o a faiur d e t o fatigue

Fix the spe imens, depen ing on the ty e of spe imen t est ed

Bring the spe imen up t o it mean s r s τ

m

an then up t o the t es fr q ency so that the ampltu e τ

a

is r ached

5.6.3 A pparatus

S e ISO 1 0 5-1