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Showing 1 to 14 of 14 for “"Single-lap shear"”.
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BOND STRENGTH EVALUATION IN ADHESIVE JOINTS USING NDE AND DIC METHODS
… defects and reliably predicting the bond shear strength. As a result, adhesive bonding technology is still not solely implemented in primary structures of an aircraft. Therefore, there is a greater demand for a novel NDE tool that can meet the existing aerospace requirement for adhesive …
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Adhesive properties of silicone resins
… of an application such as structural adhesives. Single-lap shear tests were used to study several parameters, such as the thickness of the joint, the overlap length, the behavior at high temperature and a comparison with different adhesives. Results suggest that a 10% KPE / 6% Cab-O-Sil® modified …
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Environmental durability of FRP bond to concrete subjected to freeze-thaw action
… exposure. To investigate the bond strength 84 single lap shear specimens were manufactured utilizing two different types of carbon FRP pultrued strips and three different structural adhesives for total of three FRP/adhesive combinations. Two types of concrete substrate were used: regular high …
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Photoactivated Fixation of Cartilage Tissue
… cartilage tissues was performed using a modified single-lap shear test. Finally, the cellular viability and bond stability of a photochemically bonded cartilage interface was evaluated over seven days of in vitro culture, where the bond strength was assessed by pushout of cores from annular …
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The development of poly(vinylidene fluoride) piezoelectric sensors for measuring peel stresses in adhesive joints
… in both the elastomeric butt joint and the single lap shear joint were measured using the developed stress sensors. Comparison of the measured stresses with calculated values obtained from closed-form analytical solutions and finite element analysis for the stresses was excellent. The …
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Synthesis and characterization of phenylethynyl endcapped polyetherimide oligomers
… surface treated titanium alloys were produced by single lap shear measurements. Resin infusion molding has been conducted that permitted low void graphite fabric composite panels to be prepared. The diamine monomer bis(m-aminophenyl) methyl phosphine oxide (DAMPO) was synthesized via nitration and …
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Adhesion study of thermoplastic polyimides with Ti-6Al-4V alloy and PEEK-graphite composites
… test temperature, and polyimide structure via single lap shear samples prepared from treated Ti-6AI-4V alloy adherends and compression molded film adhesives or scrim cloth adhesives. The adhesive bond strengths increased greatly with siloxane segment incorporation at 10, 20 and 30 weight …
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A chemical and mechanical evaluation of interfacial fracture in dicyandiamide cured epoxy/steel adhesive systems
… with toughener level variations, but for a single formulation no differences between the bulk and intephase morphologies were seen. Evaluations were conducted on a series of elastomer modified model epoxy formulations cured with varying amounts of dicyandiamide. The modulus and bulk fracture …
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Structure-property behavior of novel high performance thermoplastic and thermoset structural adhesives and composite matrix resins
… adhesion to Ti-6AI-4V substrates through single lap shear tests was demonstrated. Investigations of the effects of molecular weight and end group on thermal and mechanical properties of reactive amine terminated and non-reactive phthalic anhydride terminated PMDA-mBAPPO polyimides were …
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Special finite elements for modelling adhesively bonded joints in two- and three-dimensions
… frame elements to model the adherends, and a single plane elasticity-type element through the thickness of the adhesive bondline. A similar approach was developed for the analysis of bonded joints in three-dimensions such that the adherends were modelled by shear deformable plate elements, and …
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Effect of surface treatment on the mechanical properties of the polysulfone-Al/Li bonded system including thin film studies of moisture intrusion and the viscoelastic response of the interphase region
… of polysulfone-Al/Li alloy interaction involved single lap shear joints and wedge samples following an FPL etch, sulfuric acid anodization (SAA) and phosphoric acid anodization (PAA). The study of the Al/Li surfaces involved the determination of the elemental composition and morphological …
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An Investigation of Plasma Pretreatments and Plasma Polymerized Thin Films for Titanium/Polyimide Adhesion
… plasma treated and used to prepare miniature single lap shear (SLS) joints. The effects of plasma pretreatments on surface chemistry were studied using x-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), Fourier transform infrared analysis (FTIR), and contact angle …
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Micro- and Nanostructured Polymeric Materials for art protection and Restoration
… investigated for the lining of oil paintings. Single-lap shear tests confirmed the stabilization action of both CMC and CNC particles on all experimental formulations with a progressive reduction of the compliance proportionally to the filler loading. Even in this case the increment of the …
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THE STRENGTH OF BRAZED SINGLE-LAP JOINTS
… braze bulk material properties such as ultimate shear and tensile strengths. This path also has minimal explanatory power because the stresses in brazed joints are rarely if ever uniformly distributed across the braze (The stress states of the most common braze strength samples are reviewed in …