Laser-based modification of wettablility for carbon fiber reinforced plastics

Völkermeyer, Frank; Jaeschke, Peter; Stute, Uwe; Kracht, Dietmar
July 2013
Applied Physics A: Materials Science & Processing;Jul2013, Vol. 112 Issue 1, p179
Academic Journal
This paper presents a laser-based technique for surface preparation of carbon fiber reinforced plastics (CFRP) for bonded repair. Ablative and non-ablative treatment of the surface is produced by variation of laser power and the resulting surface energy determined by goniometric measurements. Wettability has been directly related to a calculated wetting envelope. The investigations show an additional major influence of the surface topography on the shear strength of the joint. The direction of the applied laser lines in relation to the fiber direction was identified as an essential influence for this roughness. A ns IR-laser demonstrates high potential for surface preparation as well as for selective ply removal. The laser prepared surfaces are examined through optical microscopy, scanning electron microscope (SEM), and contact angle measurements. The wettability studies show a significant increment in surface energy after laser treatment, in relation to non-treated as well as surface grinding samples.


Related Articles

  • Effect of Adhesive Thickness and Surface Treatment on Shear Strength on Single Lap Joint Al/CFRP using Adhesive of Epoxy/Al Fine Powder. Diharjo, Kuncoro; Anwar, Miftahul; Tarigan, Roy Aries P.; Rivai, Ahmad // AIP Conference Proceedings;2016, Vol. 1710 Issue 1, p1 

    The objective of this study is to investigate the effect of adhesive thickness and surface treatment on the shear strength and failure type characteristic of single lap joint (SLJ) CFRP/Al using adhesive epoxy/Al-fine-powder. The CFRP was produced by using hand layup method for 30% of woven...

  • Characterization and Effects of Fiber Pull-Outs in Hole Quality of Carbon Fiber Reinforced Plastics Composite. Ashrafi, Sina Alizadeh; Miller, Peter W.; Wandro, Kevin M.; Kim, Dave // Materials (1996-1944);Oct2016, Vol. 9 Issue 10, p1 

    Hole quality plays a crucial role in the production of close-tolerance holes utilized in aircraft assembly. Through drilling experiments of carbon fiber-reinforced plastic composites (CFRP), this study investigates the impact of varying drilling feed and speed conditions on fiber pull-out...

  • The effect of elevated temperature on the bond between high modulus carbon fibre-reinforced polymer sheet and steel. Liu, H. B.; Zhao, X. L.; Bai, Y.; Singh Raman, R. K.; Rizkalla, S.; Bandyopadhyay, S. // Australian Journal of Structural Engineering;2014, Vol. 15 Issue 4, p355 

    The technique of strengthening steel structures with carbon fibre-reinforced polymer (CFRP) has attracted growing attention in research field and in practice, and thus, its environmental durability is of high importance. This paper describes an investigation on the bond characteristics between...

  • EXPERIMENTAL INVESTIGATION ON BONDING CARBON FIBER REINFORCED POLYMERIC PLATES TO CONCRETE SUBSTRATE. Ţăranu, Nicolae; Oltean, Ruxandra; Cozmanciuc, Ciprian-Ilie // Bulletin of the Polytechnic Institute of Iasi - Construction & A;2011, Vol. 61 Issue 3, p47 

    The article explores an experimental study of bond between carbon fiber reinforced polymeric (CFRP) plates and concrete that are both essential in shear and flexural applications. The study involves the testing of concrete specimens strengthened with different types of carbon fiber reinforced...

  • Effect of Fiber Surface on the Interfacial Properties for Carbon Fiber Reinforced Polymer Composites. Wenbo Liu; Shu Zhang; Lifeng Hao; Xueying Zhao; Weicheng Jiao; Fan Yang; Rongguo Wang // Polymers & Polymer Composites;2014, Vol. 22 Issue 3, p283 

    We studied the effect of carbon-fiber surface on interfacial properties of carbon fiber reinforced plastic composites. Surface morphology and chemical composition of T-Series carbon fibers made in Japan were analyzed by scanning electron microscope and X-Ray photoelectron spectra. The...

  • FINITE ELEMENT MODELLING OF RC BEAMS WITH LARGE OPENING AT CRITICAL FLEXURE AND SHEAR STRENGTHENED WITH CFRP LAMINATES. Chin, S. C.; Shafiq, N.; Nuruddin, M. F. // Proceedings of the International Building & Infrastructure Techn;2014, p163 

    Pipes and ducts are provided to accommodate essential services that are required in a building, namely power supply, sewerage, air-conditioning, water supply, telephone cable and computer network. Traditionally, pipes and ducts are usually hung below the beams and formed a "dead space" in a...

  • STATIC LOADING ON DEEP BEAMS WITH LARGE OPENING WITH AND WITHOUT CFRP SHEETS AT BENDING ZONE. Preetpal Kaur A/P Ragbir Singh; Nasir Shafiq // Proceedings of the International Building & Infrastructure Techn;2014, p206 

    In the construction of modern buildings, tall buildings and other industrial structures, pipes and ducts are installed to accommodate essential services such as water supply, sewerage, air conditioning, electricity, telephone and computer network. These pipes and ducts usually run horizontally...

  • Effects of Eccentric Load on Un-Strengthen and CFRP Strengthened RC Beams. Imran, Muhammad; Akbar, Ibrisam // Advanced Materials Research;2014, Issue 935, p229 

    CFRP strengthened reinforced concrete (RC) beams are usually tested under either three points or four point concentric loads; the effect of eccentricity is neglected in many studies. In this experimental program eight RC beams tested in two groups, GROUP 'A' & 'B'. In group 'A' four RC beam...

  • Evaluation of Shear Strength of Concrete Beams with GFRP Reinforcement. Ali, Imohamed; Abdul Samad, Abdul Aziz; Miranda, Stefano de; Mohamad, Noridah; Al-Kafri, Ghusen; Mohmmed, Ahamad // Applied Mechanics & Materials;2014, Issue 660, p603 

    This research presents an experimental study related to the shear behavior of simply supported reinforced concrete beams reinforced with Glass Fiber Reinforced Polymer (GFRP) bars. Four concrete beams reinforced with GFRP bars and four control concrete beams reinforced with steel bars were...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics