Publications
189 results found
Cho JU, Kinloch A, Blackman B, et al., 2012, HIGH-STRAIN-RATE FRACTURE OF ADHESIVELY BONDED COMPOSITE JOINTS IN DCB AND TDCB SPECIMENS, INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY, Vol: 13, Pages: 1127-1131, ISSN: 1229-9138
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- Citations: 8
Da Silva LFM, Giannis S, Adams RD, et al., 2012, Manufacture of quality specimens, Testing Adhesive Joints, Best Practices, Pages: 1-77, ISBN: 9783527329045
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- Citations: 8
Pearson RA, Blackman BRK, Campilho RDSG, et al., 2012, Quasi-Static Fracture Tests, Testing Adhesive Joints, Best Practices, Pages: 163-271, ISBN: 9783527329045
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- Citations: 7
Da Silva LFM, Adams RD, Blackman BRK, et al., 2012, Higher Rate and Impact Tests, Testing Adhesive Joints, Best Practices, Pages: 273-317, ISBN: 9783527329045
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- Citations: 4
da Silva LFM, Dillard DA, Blackman B, et al., 2012, Testing Adhesive Joints, Best Practices, ISBN: 9783527329045
Joining techniques such as welding, brazing, riveting and screwing are used by industry all over the world on a daily basis. A further method of joining has also proven to be highly successful: adhesive bonding. Adhesive bonding technology has an extremely broad range of applications. And it is difficult to imagine a product - in the home, in industry, in transportation, or anywhere else for that matter - that does not use adhesives or sealants in some manner. The book focuses on the methodology used for fabricating and testing adhesive and bonded joint specimens. The text covers a wide range of test methods that are used in the field of adhesives, providing vital information for dealing with the range of adhesive properties that are of interest to the adhesive community. With contributions from many experts in the field, the entire breadth of industrial laboratory examples, utilizing different best practice techniques are discussed. The core concept of the book is to provide essential information vital for producing and characterizing adhesives and adhesively bonded joints. © 2012 Wiley-VCH Verlag GmbH & Co. KGaA.
Blackman BRK, Kinloch AJ, Rodriguez-Sanchez FS, et al., 2012, The fracture behaviour of adhesively-bonded composite joints: Effects of rate of testand mode of loading, International Journal of Solids and Structures, Vol: 49, Pages: 1434-1452
The present paper discusses the results of an investigation into the effects of test rate and the mode of loading on the fracture energy, Gc, of adhesively-bonded fibre-composite joints. Various carbon-fibre reinforced-polymer (CFRP) matrix composite substrates have been bonded using two different types of automotive structural epoxy-adhesives. They have been tested via loading the bonded joints in mode I(tensile), mode II (in-plane shear) and mixed-mode I/II from slow rates (i.e., of about 10 5 m/s) up to relatively high rates of test of about 15 m/s. The high-rate tests were photographed using a high-speed digitalvideo camera to record the deformation of the joint and the fracture behaviour. An analysis strategy has been developed for the various modes of loading (i) to account for the observed fracture behaviour,(ii) to circumvent the problems posed by oscillations in the load traces due to the presence of dynamic effects in the faster tests, and (iii) to account for the kinetic energy associated with the moving specimen arms in the faster tests. Based on the analysis strategy developed, the effect of the test rate on the fracture energy, Gc, for the different loading modes for the joints has been ascertained. Furthermore, various differentfracture paths were observed in the tests. They were either cohesive, in the adhesive layer, or interlaminar in the composite substrates. The exact fracture path observed was a function of (i) the type of composite substrate, (ii) the type of adhesive, and (iii) the mode of loading employed. However, the nature of the fracture path was found to be quite insensitive to the test rate. Essentially, it was found that joints subjected to mixed-mode I/II loading were more likely to exhibit an interlaminar fracture path in the composite substrates than when loaded in either pure modes I or II. The propensity for a given joint to exhibit such a fracture path via delamination of the composite substrate has been explained by calculating
Blackman BRK, Hoult TR, Patel Y, et al., 2012, Tool sharpness as a factor in machining tests to determine toughness, Engineering Fracture Mechanics, Vol: 101, Pages: 47-58, ISSN: 0013-7944
Blackman BRK, Conroy M, Ivankovic A, et al., 2012, Mode-mixity in beam-like geometries: Linear elastic cases and local partitioning
This work is conducted as a part of a wider international activity on mixed mode fractures in beam-like geometries under the coordination of European Structural Integrity Society, Technical Committee 4. In its initial phase, it considers asymmetric double cantilever beam geometry made of a linear elastic material with varying lower arm thickness and constant bending moment applied to the upper arm of the beam. A number of relevant analytical solutions are reviewed including classical Hutchinson and Suo local and Williams global partitioning solutions. Some more recent attempts by Williams, and Wang and Harvey to reproduce local partitioning results by averaging global solutions are also presented. Numerical simulations are conducted using Abaqus package. Mode-mixity is calculated by employing virtual crack closure technique and interaction domain integral. Both approaches gave similar results and close to the Hutchinson and Suo. This is expected as in this initial phase numerical results are based on local partitioning in an elastic material which does not allow for any damage development in front of the crack tip.
Hooper PA, Blackman BRK, Dear JP, 2012, The mechanical behaviour of poly(vinyl butyral) at different strain magnitudes and strain rates, Journal of Materials Science, Vol: 47, Pages: 3564-3576
Hooper PA, Blackman BRK, Dear JP, 2012, The mechanical behaviour of poly(vinyl butyral) at different strain magnitudes and strain rates, Vol: 47, Pages: 3564-3576
Hooper PA, Sukhram RA, Blackman BRK, et al., 2012, On the blast resistance of laminated glass, International Journal of Solids and Structures, Vol: 49, Pages: 899-918
Karac A, Blackman BRK, Cooper V, et al., 2011, Modelling the fracture behaviour of adhesively-bonded joints as a function of test rate, ENGINEERING FRACTURE MECHANICS, Vol: 78, Pages: 973-989, ISSN: 0013-7944
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- Citations: 62
BRK B, Kinloch AJ, Rodriguez-Sanchez FS, 2010, Interlaminar Fracture Effects in Adhesively Bonded Composite Joints, The Adhesion Society Inc, Pages: 29-31
Blackman BRK, Williams JG, Hoult T, et al., 2010, Crack tip sharpness effects in fracture and machining
Cho J-U, Kinloch A, Blackman B, et al., 2010, Fracture Behaviour of Adhesively-bonded Composite Materials under Impact Loading, INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING, Vol: 11, Pages: 89-95, ISSN: 1229-8557
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- Citations: 32
Williams JG, Patel Y, Blackman BRK, 2010, A fracture mechanics analysis of cutting and machining, ENGINEERING FRACTURE MECHANICS, Vol: 77, Pages: 293-308, ISSN: 0013-7944
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- Citations: 47
Cho J-U, Kinloch A, Blackman B, et al., 2010, Study on Impact Fractures of Adhesively Bonded Composite Joints, MULTI-FUNCTIONAL MATERIALS AND STRUCTURES III, PTS 1 AND 2, Vol: 123-125, Pages: 235-+, ISSN: 1022-6680
Zuo K, Blackman B, Willams G, et al., 2010, The Fracture and Fatigue Behaviour of Nano-modified SAN, 2nd International Conference on Advances in Product Development and Reliability (PDR), Publisher: TRANS TECH PUBLICATIONS LTD, Pages: 43-+, ISSN: 1022-6680
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- Citations: 1
Patel Y, Blackman BRK, Williams JG, 2009, Determining fracture toughness from cutting tests on polymers, ENGINEERING FRACTURE MECHANICS, Vol: 76, Pages: 2711-2730, ISSN: 0013-7944
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- Citations: 55
Patel Y, Blackman BRK, Williams JG, 2009, Measuring fracture toughness from machining tests, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE, Vol: 223, Pages: 2861-2869, ISSN: 0954-4062
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- Citations: 22
Blackman BRK, 2009, Special Issue Fracture of Polymers, Composites and Adhesives Foreword, ENGINEERING FRACTURE MECHANICS, Vol: 76, Pages: 2655-2655, ISSN: 0013-7944
Blackman BRK, Kinloch AJ, Sanchez FSR, et al., 2009, The fracture behaviour of structural adhesives under high rates of testing, Engineering Fracture Mechanics, Vol: 76, Pages: 2868-2889, ISSN: 0013-7944
Structural adhesive joints were subjected to high loading rates in mode I and their resulting fracture behaviour was studied in detail. Joints were formed between unidirectional carbon-fibre epoxy composites and between aluminium alloy substrates bonded with a tough, single-part automotive adhesive (XD4600) from Dow Automotive. Double cantilever beam (DCB) and tapered double cantilever beam (TDCB) tests were performed, from quasi-static loading rates up to 15 m/s, and a test rig was developed incorporating high-speed video acquisition for the high-speed tests. A detailed data reduction strategy was developed to account for (i) the types of different fracture behaviour regimes encountered, (ii) the dynamic effects in the test data, and (iii) the contribution of kinetic energy in the specimen arms to the energy balance. Using the above data reduction strategy, increasing the test rate over six decades (from 10−5 to 101 m/s) was found to lead to a reduction in the value of the adhesive fracture energy, GIc, by about 40% of its quasi-static value, i.e. from 3.5 to about 2.2 kJ/m2. Further, at quasi-static loading rates, the measured adhesive fracture energies were independent of substrate material and test geometry (i.e. DCB or TDCB). However, at faster loading rates, the TDCB tests induced higher crack velocities for a given loading rate compared with the DCB test geometry, and neither the test rate nor the crack velocity were found to be the parameter controlling the variation in GIc with increased test rate. Thus, an isothermal–adiabatic model was developed and it was demonstrated that such a model could unify the DCB and TDCB test results. Indeed, when the GIc values were plotted as a function of 1/√time, where the time was defined to be from the onset of loading the material to that required for the initiation of crack growth, the results collapsed onto a single master curve, in agreement with the isothermal–adiabatic model.
Ghasemnejad H, Blackman BRK, Hadavinia H, et al., 2009, Experimental studies on fracture characterisation and energy absorption of GFRP composite box structures, COMPOSITE STRUCTURES, Vol: 88, Pages: 253-261, ISSN: 0263-8223
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- Citations: 58
Blackman BRK, Kinloch AJ, Rodriquez-Sanchez FS, et al., 2009, The Effects of Test Rate on the Fracture Behaviour of Adhesively Bonded Joints, 17th International Conference on Composite Materials, Publisher: IoM Communications Ltd
Brunner AJ, Blackman BRK, Davies P, 2008, A status report on delamination resistance testing of polymer-matrix composites, Euromech Colloquium 473 on Fracture of Composite Materials, Publisher: PERGAMON-ELSEVIER SCIENCE LTD, Pages: 2779-2794, ISSN: 0013-7944
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- Citations: 188
Blackman BRK, 2008, Delamination in adhesively bonded joints, Delamination Behaviour of Composites, Pages: 458-484, ISBN: 9781845692445
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- Citations: 2
Blackman BRK, 2008, Delamination in adhesively bonded joints, DELAMINATION BEHAVIOUR OF COMPOSITES, Editors: Sridharan, Publisher: WOODHEAD PUBL LTD, Pages: 458-484
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- Citations: 1
Blackman BRK, Johnsen BB, Kinloch AJ, et al., 2008, The effects of pre-bond moisture on the fracture behaviour of adhesively-bonded composite joints, JOURNAL OF ADHESION, Vol: 84, Pages: 256-276, ISSN: 0021-8464
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- Citations: 29
Cho JU, Lee SK, Cho C, et al., 2007, A study on the impact behavior of adhesively-bonded composite materials, 10th International Conference on Advances in Materials and Processing Technologies (AMPT2007), Publisher: KOREAN SOC MECHANICAL ENGINEERS, Pages: 1671-1676, ISSN: 1738-494X
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- Citations: 12
Blackman BRK, Kinloch AJ, Lee JS, et al., 2007, The fracture and fatigue behaviour of nano-modified epoxy polymers, Journal of Materials Science, Vol: 42, Pages: 7049-7051, ISSN: 1573-4803
The introduction of nano-silica particles into an epoxy polymer has increased both the initial toughness, as measured by the fracture toughness, KIc, and also significantly improved the cyclic-fatigue behaviour of the epoxy polymer. Thus, the significant increases recorded in the values of the range of applied stress-intensity factor at threshold, ΔKth, from the cyclic-fatigue tests for the nano-silica modified materials are very noteworthy, since these increases are accompanied by significant improvements being recorded in the initial toughness.
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