Finite Element Analysis of an Adhesive Joint Using the Cohesive Zone Model and Surface Pattern Design of Bonding Surfaces

Lee, M. J.; Lim, Jongtae; Lee, B. C.

doi:10.1080/00218464.2013.739042

Cited by 15 publications

(7 citation statements)

References 22 publications

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“…Increased energy dissipation by converting the direction of crack propagation from mode I (normal) to mode II (in-plane shear) in nanoimprinted substrate with numerous grooves leads to the enhancement of pull-off force. 37 From the experimental and numerical results, the rectangular patterns are advantageous to enhance the adhesion behavior because the width of the pattern is related to increasing the pull-off strength in mode I while the height controls the mode II loading. Therefore, rectangular patterned interface would show higher pull-off strength than other interfaces since the two modes are wellcombined.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The rectangular patterned interface shows the highest pull-off force value, followed by the sinusoid patterned interface and planar surface. Increased energy dissipation by converting the direction of crack propagation from mode I (normal) to mode II (in-plane shear) in nanoimprinted substrate with numerous grooves leads to the enhancement of pull-off force . From the experimental and numerical results, the rectangular patterns are advantageous to enhance the adhesion behavior because the width of the pattern is related to increasing the pull-off strength in mode I while the height controls the mode II loading.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Nanotextured Polymer Substrate for Flexible and Mechanically Robust Metal Electrodes by Nanoimprint Lithography

Eom

Kim²,

Hur³

et al. 2015

ACS Appl. Mater. Interfaces

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Metal thin film electrodes on flexible polymer substrates are inherently unstable against humidity and mechanical stresses because of their poor adhesion properties. We introduce a novel approach for improving the adhesion characteristics of metal-polymer interface based on the nanostructuring of the polymer substrate by using nanoimprint lithography. The adhesion characteristics of metal-polymer interface were measured by accelerated test, cyclic bending test and double cantilever beam (DCB) test. The interface of Au/Ti dual layer thin film and nanoimprinted PMMA substrate shows over 2.03 and 1.95 times higher adhesion energy (G(c)) than that of Au/Ti dual layer thin film and plane PMMA substrate in air and wet environments, respectively. The adhesion energy between metal thin film and polymer substrate was dramatically improved by the increased surface roughness and mechanical interlocking effect of numerous nanoscale anchors at the edges of nanoimprinted surface, which was verified by both experiment and numerical analysis.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Nanotextured Polymer Substrate for Flexible and Mechanically Robust Metal Electrodes by Nanoimprint Lithography

Eom

Kim²,

Hur³

et al. 2015

ACS Appl. Mater. Interfaces

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“…Many studies have been conducted to predict and evaluate the strength of adhesive joints using continuum mechanics and fracture mechanics approaches [ 5 ]. The continuum mechanics approach has been used to analyze the strength of the adhesive; it requires stress distributions and adequate failure criteria [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Crash Analysis of Aluminum/CFRP Hybrid Adhesive Joint Parts Using Adhesive Modeling Technique Based on the Fracture Mechanics

et al. 2021

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This study describes the numerical simulation results of aluminum/carbon-fiber-reinforced plastic (CFRP) hybrid joint parts using the explicit finite-element solver LS-DYNA, with a focus on capturing the failure behavior of composite laminates as well as the adhesive capacity of the aluminum–composite interface. In this study, two types of adhesive modeling techniques were investigated: a tiebreak contact condition and a cohesive zone model. Adhesive modeling techniques have been adopted as a widely commercialized model of structural adhesives to simulate adhesive failure based on fracture mechanics. CFRP was studied with numerical simulations utilizing LS-DYNA MAT54 to analyze the crash capability of aluminum/CFRP. To evaluate the simulation model, the results were compared with the force–displacement curve from numerical analysis and experimental results. A parametric study was conducted to evaluate the effect of different fracture toughness values used by designers to predict crash capability and adhesive failure of aluminum/CFRP parts.

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“…Traction-Separation Law is one of the accurate modeling methods for contact interfaces for the masonry structures. Many pieces of research have been completed to define and investigate the behavior of masonry contacts by traction separation laws [13][14][15][16][17][18][19]. Besides, different contact interaction properties have been defined as well for masonry structures [20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Structural Identification of Masonry Residential Buildings Considering Wall Openings

Toydemir

Koçak

2020

Period. Polytech. Civil Eng.

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Although one-story residential masonry structures are thought not to be vulnerable to seismic actions, many heavily damaged and/or collapsed instances of these types of structures have been observed in the past strong earthquake events. Hence, the evaluation of their safety requires much attention in terms of more precise numerical models. In-situ vibration tests together with laboratory tests on masonry specimens provide valuable information for structural parameter identification that can be used to develop accurate numerical models. These numerical models then can be used for evaluation of the response and seismic safety. While many specific methods and parameters can be adopted in numerical modeling, linear material properties of a structure are expedient in response analysis. Hence, an equation to be used to determine the homogenized linear model parameters for masonry walls with openings is proposed in this study. The equation has been developed based on the percentage of the openings on the wall. The effect of wall openings on the stiffness and the total strength of one-story masonry structures have been evaluated by using the experimental data and the calibrated finite element models. In-situ ambient vibration and material tests have been conducted on three masonry buildings with identical materials and the results from these experiments were used to verify the accuracy of the formulation.

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Finite Element Analysis of an Adhesive Joint Using the Cohesive Zone Model and Surface Pattern Design of Bonding Surfaces

Cited by 15 publications

References 22 publications

Nanotextured Polymer Substrate for Flexible and Mechanically Robust Metal Electrodes by Nanoimprint Lithography

Nanotextured Polymer Substrate for Flexible and Mechanically Robust Metal Electrodes by Nanoimprint Lithography

Crash Analysis of Aluminum/CFRP Hybrid Adhesive Joint Parts Using Adhesive Modeling Technique Based on the Fracture Mechanics

Structural Identification of Masonry Residential Buildings Considering Wall Openings

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