journal article·2013-12

Mechanical characterization of a high elongation and high toughness epoxy adhesive

D.F.S. Saldanha, C. Canto, L.F.M. da Silva, R.J.C. Carbas, F.J.P. Chaves, K. Nomura, T. Ueda

Publisher page

Abstract

Abstract In this paper, a new epoxy adhesive has been mechanically characterized. The adhesive combines the properties of an epoxy adhesive and typical polyurethane (PU) adhesive, such as high elongation and high toughness. Experimental tests were performed to measure the tensile properties, shear properties, thermal properties and fracture properties. The tensile test shows high tensile strength and high elongation. The single lap joint (SLJ) test shows that the failure load is proportional to the overlap length for hard steel adherends. For the SLJs with mild steel adherends, the failure occurred due to adherend yielding. Impact tests were conducted using SLJ specimens and the results are consistent with the SLJ tested under static conditions. The Tg was obtained using a Dynamic Mechanical Analysis (DMA) type of test. The toughness in mode I was determined using the Double Cantilever Beam (DCB) test and the toughness in mode II using End Notched Flexure (ENF) test.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Mechanical Behavior of Composites · Epoxy Resin Curing Processes · Fiber-reinforced polymer composites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (24)

Show source-provided references
1. Quasi-static strength and fatigue life of hybrid (bonded/bolted) composite single-lap joints10.1016/j.compstruct.2004.11.002 ↗
2. Single lap joints loaded in tension with high strength steel adherends10.1016/j.ijadhadh.2013.01.016 ↗
3. Silva · 2011
4. Crack-growth behavior of epoxy adhesives modified with liquid rubber and cross-linked rubber particles under mode I loading10.1016/j.ijadhadh.2007.11.004 ↗
5. R-curve characteristics of adhesives modified with high rubber content under mode I loading10.1016/j.ijadhadh.2010.03.005 ↗
6. Fracture behaviours of in situ silica nanoparticle-filled epoxy at different temperatures10.1016/j.polymer.2008.06.040 ↗
7. B · 2011 · 1185
8. T.Y. Tsujimura. High toughness composites based on insitupolymerizable thermoplastic epoxy-resin. In: 29th International Conference and Forum—SAMPE Europe SEICO 08, Paris; 2008.
9. Effect of temperature on tensile strength and mode I fracture toughness of a high temperature epoxy adhesive10.1163/156856111X593649 ↗
10. A new technique for the measurement of the specific damping capacity of beams in flexure10.1088/0022-3735/14/3/021 ↗
11. Method of measuring the glass transition temperature using a novel dynamic mechanical analysis method10.1080/00218464.2013.763677 ↗
12. M.F. Kanninen, C.H. Popelar. Advanced fracture mechanics. Oxford University Press, Oxford, 1985.
13. DCB testing of composite laminates reinforced with z-direction pins: a simple model for the investigation of data reduction strategies10.1016/S0013-7944(03)00116-4 ↗
14. Crack equivalent concept applied to the fracture characterization of bonded joints under pure mode I loading10.1016/j.compscitech.2008.04.003 ↗
15. Cohesive and continuum mixed-mode damage models applied to the simulation of the mechanical behaviour of bonded joints10.1016/j.ijadhadh.2008.04.004 ↗
16. Mode II fracture toughness of adhesively bonded joints as a function of temperature: experimental and numerical study10.1080/00218464.2012.660835 ↗
17. Fracture toughness of a structural adhesive under mixed mode loadings Bruchzähigkeit eines Strukturklebstoffs bei Mixed-Mode Belastung10.1002/mawe.201100808 ↗
18. Equivalent crack based analyses of ENF and ELS tests10.1016/j.engfracmech.2007.03.005 ↗
19. Static and fatigue behaviour of room temperature vulcanising silicone adhesives for high temperature aerospace applications10.1002/mawe.201000605 ↗
20. Mechanical characterization of flexible adhesives10.1080/00218460902881808 ↗
21. Effect of material, geometry, surface treatment and environment on the shear strength of single lap joints10.1016/j.ijadhadh.2009.02.012 ↗
22. Single lap joints loaded in tension with ductile steel adherends10.1016/j.ijadhadh.2013.01.017 ↗
23. Mode II fracture toughness of a brittle and a ductile adhesive as a function of the adhesive thickness10.1080/00218464.2010.506155 ↗
24. Influence of the adhesive, the adherend and the overlap on the single lap shear strength