Optimization of laminated composite structures using delamination criteria and hierarchical models

Johansen, Leon Stenholt; Lund, Erik

doi:10.1007/s00158-008-0280-1

Cited by 19 publications

(4 citation statements)

References 30 publications

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“…15 Regarding the structure of lamination films, there has been extensive research into enhancing the adhesion strength. 16,17 However, no studies have examined the effects of operating conditions in the R2R lamination process on the adhesion strength of the laminated composite. Fig.…”

Section: Introductionmentioning

confidence: 99%

Analysis of adhesion strength of laminated copper layers in roll-to-roll lamination process

Lee

Park

et al. 2015

Int. J. Precis. Eng. Manuf.

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The roll-to-roll (R2R) lamination process is a promising technology for the fabrication of flexible electronic devices on large areas such as solar cells or organic light emitting diodes. In this study, mechanical factors in the R2R lamination process that affect the adhesion strength of laminated composite were studied by finite-element simulation based on a theoretical model. Moreover, the effect of mechanical factors on the attenuation of adhesion strength was evaluated by using a full factorial design of experiment. The results show that the adhesive strength of the laminated composite decreases as the operating tension and strain rate increase. However, the radius of the roller has the opposite tendency to the operating tension. Non-linear regression model was developed to express the adhesion strength according to the mechanical factors, followed by the determination of their ranges to minimize peel-off. The suggested analysis method, devices and non-linear regression model could be used as a guideline to pre-determine the operating conditions in the R2R lamination process before manufacturing laminated composites.

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Section: Introductionmentioning

confidence: 99%

Analysis of adhesion strength of laminated copper layers in roll-to-roll lamination process

Lee

Park

et al. 2015

Int. J. Precis. Eng. Manuf.

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“…Most of the previous optimization work in the design of composite structures [16][17][18][19][20] focused on aerospace structures, but pultruded GFRP composites, commonly used in bridge decks, are quite different in nature with the composites used in aerospace structures [15], as can be reflected in Figure 2. These differences include: (i) the pultruded FRP laminations have a relatively poor quality, and (ii) the roving content is larger than fabrics, leading to an increase in the thickness of the unidirectional lamina (0°-lamina) of up to 5-15 times the laminas with other orientations.…”

Section: Introductionmentioning

confidence: 99%

Material-structure integrated design optimization of GFRP bridge deck on steel girder

et al. 2020

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Design optimization of fiber-reinforced polymeric (FRP) composite products is essential to facilitate their applications in engineering structures. For bridge structures, the main design optimization goals are the reduction of FRP material consumption and the structure weight, which aim to reduce the initial construction cost and achieve a longer bridge span. Compared with conventional steel-concrete composite bridges, FRP-steel composite bridges possess more design variables and more complex design process, which necessitate the simplified optimization models. This paper aims to propose a two-scale design optimation method for FRP bridge deck on the steel girder. The macro behavior of the pultruded FRP composite bridge deck is analyzed. Regarding the micro level, the equivalent properties of pultruded GFRP lamination are calculated by combining micromechanics and classical lamination theory (CLT).The above-mentioned macro pultruded GFRP bridge level and the micro fiber/resin level were bridged based on the assumption that the micro-component effective homogenized strain equals to the corresponding macro strain. The two-scale lamination optimization of pultruded GFRP bridge deck is finally achieved by finding optimized two-scale design variables that can achieve the minimum bridge weight or the lowest initial construction cost with all listed constraint requirements satisfied. A pultruded FRP deck supported on equally-spaced steel girders was selected as a case study to show how to obtain

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“…886 Other than behavioral constraints, side constraints may be applied; e.g. design space may be restricted to positive values of thickness and cross-sectional area 50 584 stress interaction criterion, 511 C2 criterion, 150 Ye criterion, 964 Puck failure criterion, 882,974,975 Chang-Chang failure criterion, 937 Cheng and Lessard criterion, 299,475 Yamada failure criterion, 143 maximum distortion energy theory, 9,15,47,58,200,242,267,291,330,542,674,759,763,765,767,827,847,894,951 Huber-Mises criterion, 563,745,942,954 Treska, 5 maximum normal stress theory, 761,970 critical failure volume method, 949 point stress criterion, 112,183,519 where failure criterion is checked at a specific distance for a notch, multiscale stress criteria, 773,846 fracture mechanics, 73,299, 338 continuum damage mechanics, 501 energy based failure criteria, 438 failure-mechanism based failure criteria, 917,…”

Section: Introductionmentioning

confidence: 99%

Optimum Design of Composite Structures: A Literature Survey (1969–2009)

Sonmez

2016

Journal of Reinforced Plastics and Composites

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Optimum structural design of composites is a research subject that has drawn the attention of many researchers for more than 40 years with a growing interest. In this study, a review of the literature on this subject is presented. The papers are classified according to the type of the composite structure optimized in those studies, the loading conditions, the objective function, the structural analysis method, the design variables, the constraints, the failure criteria, and the search algorithm used by the researchers.

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Optimization of laminated composite structures using delamination criteria and hierarchical models

Cited by 19 publications

References 30 publications

Analysis of adhesion strength of laminated copper layers in roll-to-roll lamination process

Analysis of adhesion strength of laminated copper layers in roll-to-roll lamination process

Material-structure integrated design optimization of GFRP bridge deck on steel girder

Optimum Design of Composite Structures: A Literature Survey (1969–2009)

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