Abstract

The paper reports on the preliminary evaluation of a transparent structural silicone adhesive (TSSA) developed for point fixing in glazing, which combines high transparency, strong adhesion performance, thermal stability, and excellent weatherability. The transparent film adhesive is a heat curing one-part material that shows strong bonding to glass, metals, ceramics, and even plastics typically without primer. The paper presents information on the durability and physical properties of the new material and suggests a methodology for deriving static and dynamic design strength values for the new material based on creep rupture experiments as well as nondestructive dynamic load experiments using the stress whitening phenomenon observed with this material as the limit state. The paper further discusses material characterization and hyperelastic modeling used in the finite element analysis based on finite strain theory.

Issue Section:
Research Papers
Keywords:
structural, silicone, film adhesive, point fixing, glazing

References

1.
Siebert
,
B.
, “
Safety Aspects of Point-Fixed Glass Constructions
,”
Glass Performance Days
,
J.
Vitkala
, Ed.,
Glaston Finland Oy
,
Tampere, Finland
,
2007
, pp.
432
–
436
.
Google Scholar
Crossref
Search ADS
 
2.
Hagl
,
A.
, “
Punktuelles Kleben mit Silikonen
,”
Stahlbau
, Vol.
77
, No.
11
,
2008
, pp.
791
–
801
. https://doi.org/10.1002/stab.200810093
Google Scholar
Crossref
Search ADS
 
3.
ASTM Standard C1048
,
2004
, “
Standard Specification for Heat-Treated Flat Glass—Kind HS, Kind FT Coated and Uncoated Glass
,”
Annual Book of ASTM Standards
,
ASTM International
,
West Conshohocken, PA
.
4.
Tasche
,
S.
,
2007
, “
Strahlungshärtende Acrylate im Konstruktiven Glasbau, Ph.D. Thesis, Technische Universität
,”
Dresden
, Germany.
5.
Weller
,
B.
 and
Tasche
,
S.
, “
Experimental Evaluation of Ultraviolet and Visible Light Curing Acrylates for Use in Glass Structures
,”
Durability of Building and Construction Sealants and Adhesives
,
,
A.T.
 
Wolf
, Ed.,
ASTM International
,
West Conshohocken, PA
,
2010
, pp.
135
–
156
.
Google Scholar
Crossref
Search ADS
 
6.
Hagl
,
A.
, “
Bonded Point-Supports: Understanding Today—Optimizing for the Future
,”
Challenging Glass 2, Conference on Architectural and Structural Applications of Glass
,
F.
 
Bos
 and
C.
 
Louter
, Eds.,
Univ. of Technology, Faculty of Architecture, Delft
,
The Netherlands
,
2010
.
7.
Hagl
,
A.
, “
Silicone Bonded Point Supports—Behaviour Under Cyclic Loading
,”
Engineered Transparency—International Conference at Glasstec
,
Düsseldorf
,
Germany
,
J.
 
Schneider
 and
B.
 
Weller
, Eds.,
Technical Univ. of Dresden
,
Dresden, Germany
,
2010
, pp.
139
–
148
.
8.
Anonymous
,
VHB Structural Glazing Tape G23F/B23F Technical Datasheet
,
3M Deutschland GmbH, Neuss
,
Germany
,
2007
.
9.
Parise
,
C. J.
,
Science and Technology of Glazing Systems, STP1054
,
ASTM International
,
West Conshohocken, PA
,
1989
.
Google Scholar
Crossref
Search ADS
 
10.
ASTM Standard C1401-09a
,
2009
, “
Standard Guide for Structural Sealant Glazing
,”
Annual Book of ASTM Standards
,
ASTM International
,
West Conshohocken, PA
.
11.
EOTA Recommendation
,
ETAG 002 Structural Sealant Glazing Systems, Part 1: Supported and Unsupported Systems
,
1999
;
Part 2: Coated Aluminium Systems
,
2002
;
Part 3: Thermal Breaks
,
2003
, European Organization for Technical Approvals (EOTA), Brussels, Belgium.
12.
ISO Standard 8339
,
2005
,
BuildingCconstruction - Sealants - Determination of Tensile Properties (Extension to Break)
,
International Standardization Organization (ISO)
,
Geneva
.
13.
Wolf
,
A. T.
, “
Durability of Silicone Sealants
,”
Durability of Building Sealants - State-of-the-Art Report of RILEM TC 139-DBS
,
A.T.
 
Wolf
, Ed.,
RILEM Publications
,
Bagneux, France
,
1999
.
14.
ISO Standard 6502
,
1999
,
Rubber — Guide to the Use of Curemeters
,
International Standardization Organization (ISO)
,
Geneva
.
15.
Wolf
,
A.T.
 and
Hirai
,
K.
, “
Evaluation of Transparent Structural Silicone Film Adhesive for Bonded Point-Fixed Glazing
,”
Engineered Transparency – International Conference at Glasstec, Düsseldorf, Germany
,
J.
 
Schneider
 and
B.
 
Weller
, Eds.,
Technical Univ. of Dresden
,
Dresden, Germany
,
2010
, pp.
167
–
177
.
16.
Meloan
,
C. E.
,
James
,
R. E.
, and
Saferstein
,
R.
, “
Refractive Index (RI) of Glass Fragments
,”
Criminalistics: An Introduction to Forensic Science, Lab Manual
, 6th ed.,
Prentice-Hall
,
Upper Saddle River, NJ
,
1998
, pp.
29
–
35
.
17.
JIS Standard K 7105
,
1981
,
Testing Methods for Optical Properties of Plastics
,
Japanese Standards Association
,
Akasaka Minato-ku, Tokyo, Japan
.
18.
JIS Standard Z 8729
,
1980
,
Specification of Colour of Materials According to the CIE 1976 (L*A*B) Space and the CIE 1976 (L*U*V) Space
,
Japanese Standards Association
,
Akasaka Minato-ku, Tokyo, Japan
.
19.
JIS Standard A 1412-1
,
1999
,
Test Method For Thermal Resistance And Related Properties Of Thermal Insulations - Guarded Hot Plate Apparatus
,
Japanese Standards Association
,
Akasaka Minato-ku, Tokyo, Japan
.
20.
JIS Standard K 7197
,
1991
,
Testing Method for Linear Thermal Expansion Coefficient of Plastics by Thermomechanical Analysis
,
Japanese Standards Association
,
Akasaka Minato-ku, Tokyo, Japan
.
21.
ASTM Standard D2369
,
2010
, “
Standard Test Method for Volatile Content of Coatings
,”
Annual Book of ASTM Standards
,
ASTM International
,
West Conshohocken, PA
.
22.
JIS Standard K 6251
,
2004
,
Rubber, Vulcanized or Thermoplastic - Determination of Tensile Stress-Strain Properties
,
Japanese Standards Association, Akasaka Minato-ku
,
Tokyo, Japan
.
23.
ISO Standard 527-1
,
1993
,
Plastics – Determination of Tensile Properties – Part 1: General Principles
,
International Standardization Organization (ISO)
,
Geneva
.
24.
ISO Standard 527-2
,
1993
,
Plastics – Determination of Tensile Properties – Part 2: Test Conditions for Moulding and Extrusion Plastics
,
International Standardization Organization (ISO)
,
Geneva
.
25.
JIS Standard K 6253
,
2006
,
Rubber, Vulcanized or Thermoplastic - Determination of Hardness
,
Japanese Standards Association, Akasaka Minato-ku
,
Tokyo, Japan
.
26.
JIS Standard K 6252
,
2007
,
Rubber, Vulcanized or Thermoplastic - Determination of Tear Strength
,
Japanese Standards Association, Akasaka Minato-ku
,
Tokyo, Japan
.
27.
ASTM Standard D412-06ae2
,
2006
, “
Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
,”
Annual Book of ASTM Standards
,
ASTM International
,
West Conshohocken, PA
.
28.
Clift
,
C.
,
Hutley
,
P.
, and
Carbary
,
L. D.
, “
Transparent Structural Silicone Adhesive
,”
Glass Performance Days
,
J.
 
Vitkala
, Ed.,
Glaston Finland Oy
,
Tampere, Finland
,
2011
.
29.
ASTM Standard G154-06
,
2006
, “
Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials
,”
Annual Book of ASTM Standards
,
ASTM International
,
West Conshohocken, PA
.
30.
ASTM Standard C1184-05
,
2005
, “
Standard Specification for Structural Silicone Sealants
,”
Annual Book of ASTM Standards
,
ASTM International
,
West Conshohocken, PA
.
31.
EN Standard 15434:2006+A1
,
2010
,
Glass in Building – Product Standard for Structural and/or Ultra-violet Resistant Sealant (for Use With Structural Sealant Glazing and/or Insulating Glass Units With Exposed Seals)
,
European Committee for Standardization (CEN)
,
Brussels, Belgium
.
32.
Townsend
,
B. W.
,
2008
, “
Characterization and Lifetime Performance Modeling of Acrylic Foam Tape for Structural Glazing Applications
,” M. Sc. Thesis,
Virginia Polytechnic Institute and State Univ.
, Blacksburg, Virginia.
33.
Little
,
R. E.
 and
Ekvall
,
J. C.
 (Eds.),
Statistical Analysis of Fatigue Data: A Symposium
,
ASTM International
,
West Conshohocken, PA
,
1981
.
Crossref
Search ADS
 
34.
Sandberg
,
L. B.
 and
Rintala
,
A. E.
, “
Resistance of Structural Silicones to Creep Rupture andFatigue
,”
Building Sealants: Materials, Properties, and Performance, ASTM STP 1069
,
T.F.
 
O’Connor
, Ed.,
ASTM International
,
West Conshohocken, PA
,
1990
, pp.
7
–
21
.
35.
ASTM Standard C1135-00
,
2011
, “
Standard Test Method for Determining Tensile Adhesion Properties of Structural Sealants
,”
Annual Book of ASTM Standards
,
ASTM International
,
West Conshohocken, PA
.
36.
Lampman
,
S.
,
Characterization and Failure Analysis of Plastics
,
ASM International
,
Materials Park, OH
,
2003
.
Google Scholar
Crossref
Search ADS
 
37.
Eligehausen
,
R.
 and
Silva
,
J.
, “
The Assessment and Design of Adhesive Anchors in Concrete for Sustained Loading
,” White Paper, Hilti North America, http://www.us.hilti.com/data/techlib/docs/technical%20publications/anchoring/hiltiadhesivesustainedloading.pdf, Jan 2008, viewed May 28,
2011
.
38.
ASTM Standard D5574-94
,
2005
, “
Standard Test Methods for Establishing Allowable Mechanical Properties of Wood-Bonding Adhesives for Design of Structural Joints
,”
Annual Book of ASTM Standards
,
ASTM International
,
West Conshohocken, PA
.
39.
Broughton
,
W. R.
 and
Mera
,
R. D.
, “
Review of Durability Test Methods and Standards for Assessing Long Term Performance of Adhesive Joints
,” National Physical Laboratory, Teddington, Middlesex, United Kingdom, May 1997, available at: http://www.adhesivestoolkit.com/Docu-Data/NPLDocuments/P%20A%20J/PAJ%20Reports/PAJ3%20Reports/PAJ3%20Report%201%20CMMT(A)61.pdf, viewed May 28,
2011
.
40.
Sandberg
,
L. B.
 and
Ahlborn
,
T. M.
, “
Combined Stress Behavior of Structural Glazing Joints
,”
J.Struct. Eng.
, Vol.
15
, No.
5
,
1989
, pp.
1212
–
1224
. https://doi.org/10.1061/(ASCE)0733-9445(1989)115:5(1212)
Google Scholar
Crossref
Search ADS
 
41.
Bucknall
,
C. B.
 and
Smith
,
R. R.
, “
Stress-Whitening in High Impact Polystyrenes
,”
Polymer
, Vol.
5
,
1965
, pp.
437
–
446
. https://doi.org/10.1016/0032-3861(65)90028-5
42.
Kambour
,
R. P.
, “
A Review of Crazing and Fracture in Thermoplastics
.”
J. Polymer Sci., Macromol. Rev.
, Vol.
7
,
1973
, pp.
1
–
154
. https://doi.org/10.1002/pol.1973.230070101
Google Scholar
Crossref
Search ADS
 
43.
Bucknall
,
C. B.
, “
The Kinetics of Crazing and Shear Yielding in Rubber-Toughened Plastics
,”
RubberChem. Technol.
, Vol.
60
,
1987
, pp. 35 ( https://doi.org/10.5254/1.3536120), viewed May 28,
2011
. https://doi.org/10.5254/1.3536120
44.
Thomas
,
R.
,
Ding
,
Y.
,
He
,
Y.
,
Yang
,
L.
,
Moldenaers
,
P.
,
Yang
,
W.
,
Czigany
,
T.
 and
Thomas
,
S.
, “
Miscibility, Morphology, Thermal, and Mechanical Properties of a DGEBA Based Epoxy Resin Toughened with a Liquid Rubber
,”
Polymer
, Vol.
49
, No.
1
,
2008
, pp.
278
–
294
. https://doi.org/10.1016/j.polymer.2007.11.030
Google Scholar
Crossref
Search ADS
 
45.
Kinloch
,
A. J.
 and
Young
,
R. J.
,
Fracture Behavior of Polymers
,
Applied Science Publishers
,
London and New York
,
1983
.
46.
Nathani
,
H.
,
Dasari
,
A.
 and
Misra
,
R. D. K.
, “
On the Reduced Susceptibility to Stress Whitening Behavior of Melt Intercalated Polybutene–Clay Nanocomposites During Tensile Straining
,”
Acta Mater.
, Vol.
52
,
2004
, pp.
3217
–
3227
. https://doi.org/10.1016/j.actamat.2004.03.021
Google Scholar
Crossref
Search ADS
 
47.
Finnigan
,
B.
,
Casey
,
P.
,
Cookson
,
D.
,
Halley
,
P.
,
Jack
,
K.
,
Truss
,
R.
, and
Martin
,
D.
, “
Impact of Controlled Particle Size Nanofillers on the Mechanical Properties of Segmented Polyurethane Nanocomposites
,”
Int. J. Nanotechnol.
, Vol.
4
, No.
5
,
2007
, pp.
496
–
515
. https://doi.org/10.1504/IJNT.2007.014747
Google Scholar
Crossref
Search ADS
 
48.
Anonymous
, “
Hyperelasticity
,” Release 11.0 Documentation for ANSYS, http://www.kxcad.net/ansys/ANSYS/ansyshelp/thy_mat5.html.
49.
Dorfmann
,
A.
 and
Muhr
,
A.
 (Eds.),
Constitutive Models for Rubber: Proceedings of the First European Conference, Vienna, Austria, 9–10 Sept 1999
,
Taylor & Francis
,
London, United Kingdom
,
1999
;
Besdo
,
D.
,
Schuster
,
R. H.
, and
Ihlemann
,
J.
 (Eds.),
Constitutive Models for Rubber II: Proceedings of the Second European Conference ECCMR 2001, Hanover, Germany, 10-12 Sept 2001
,
Taylor & Francis
,
London, United Kingdom
,
2001
;
Busfield
,
J.
 and
Muhr
,
A.
 (Eds.),
Constitutive Models for Rubber III: Proceedings of the Third European Conference on Constitutive Models for Rubber, London, UK, 15-17 Sept 2003
,
Taylor & Francis
,
London, United Kingdom
,
2002
;
Austrell
,
P.-E.
, and
Kari
,
L.
 (Eds.),
Constitutive Models for Rubber IV: Proceedings of the Fourth European Conference on Constitutive Models for Rubber, ECCMR 2005, Stockholm, Sweden, 27-29 June 2005
,
Taylor & Francis
,
London, United Kingdom
,
2005
;
Boukamel
,
A.
,
Laiarinandrasana
,
L.
,
Méo
,
S.
, and
Verron
,
E.
 (Eds.),
Constitutive Models for Rubber V: Proceedings of the 5th European Conference, Paris, France, 4-7 Sept 2007
,
Taylor & Francis
,
London, United Kingdom
,
2007
.
50.
Aidy
,
A.
,
Hosseini
,
M.
, and
Sahari
,
B. B.
, “
A Review of Constitutive Models for Rubber-Like Materials
,”
Am. J. Eng. Appl. Sci.
, Vol.
3
, No.
1
,
2010
, pp.
232
–
239
. https://doi.org/10.3844/ajeassp.2010.232.239
51.
Martins
,
P. A. L. S.
,
Jorge
,
R. M. N.
, and
Ferreira
,
A. J. M.
, “
A Comparative Study of Several Material Models for Prediction of Hyperelastic Properties: Application to Silicone-Rubber and Soft Tissues
,”
Strain
, Vol.
42
, No.
3
,
2006
, pp.
135
–
147
. https://doi.org/10.1111/j.1475-1305.2006.00257.x
Google Scholar
Crossref
Search ADS
 
52.
Duncan
,
B. C.
,
Crocker
,
L. E.
, and
Urquhart
,
J. M.
,
Evaluation of Hyperelastic Finite Element Models for Flexible Adhesive Joints
,
National Physical Laboratory
,
Teddington, Middlesex, United Kingom
,
2000
, available online at: http://www.adhesivestoolkit.com/Docu-Data/NPLDocuments/P%20A%20J/PAJex%20Reports/PAJex2/PAJex2%20Report%202%20CMMT(A)285.pdf, viewed May 28,
2011
.
53.
Miller
,
K.
,
Experimental Loading Conditions Used to Implement Hyperelastic and Plastic Material Models
,
Axel Products, Inc.
,
Ann Arbor, MI, USA
, available online at: http://www.mscsoftware.com/support/library/conf/auto00/p04500.pdf, viewed May 28, 2011.
54.
Miller
,
K.
,
Testing Elastomers for Hyperelastic Material Models in Finite Element Analysis
,
Axel Products, Inc.
,
Ann Arbor, MI, USA
, available online at: http://www.axelproducts.com/downloads/TestingForHyperelastic.pdf, viewed May 28,
2011
.
55.
Johlitz
,
M.
 and
Diebels
,
S.
, “
Characterisation of a Polymer Using Biaxial Tension Tests. Part I: Hyperelasticity
,” Archive of Applied Mechanics, published online: DOI: 10.1007/s00419-010-0480-1, available online at: http://www.springerlink.com/content/e163804m21472606/, viewed May 28,
2011
.
56.
Treloar
,
L. R. G.
,
The Physics of Rubber Elasticity
, 3rd ed. (Reissue),
Oxford Univ. Press
,
Oxford
,
2005
.
Google Scholar
Crossref
Search ADS
 
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