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Gutnik, V. G.; Gorbach, N. V.; Dashkov, A.V.

doi:10.1023/a:1022912325343

Cited by 35 publications

(11 citation statements)

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“…This translates into a 2.9% increase in total energy for the MCD configurations over the single clock, fully synchronous system. We believe this is a very conservative assumption as others suggest that the use of multiple PLLs would increase the clock energy by an insignificant amount [11,12].…”

Section: Simulation Methodologymentioning

confidence: 93%

Dynamic frequency and voltage control for a multiple clock domain microarchitecture

Semeraro

Albonesi

Dropsho

et al.

35th Annual IEEE/ACM International Symposium on Microarchitecture, 2002. (MICRO-35). Proceedings.

175

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Section: Simulation Methodologymentioning

confidence: 93%

Dynamic frequency and voltage control for a multiple clock domain microarchitecture

Semeraro

Albonesi

Dropsho

et al.

35th Annual IEEE/ACM International Symposium on Microarchitecture, 2002. (MICRO-35). Proceedings.

175

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“…There are typically two types of thermoplastic polymer structures: Amorphous and semi-crystalline [75]. High-quality welding of the polymer component is obtained when the polymers are heated to the amount that it reaches its viscous flow state in the contact area [36]. In Amorphous polymers the transmission of ultrasonic vibrations to melt the matrices at the interface are very effective.…”

Section: Thermoplastic Polymers For Ultrasonic Weldingmentioning

confidence: 99%

“…High stiffness, hardness and the damping factor being the material properties, affect the basis of the ultrasonic technique, which is to convert the vibration into thermal energy. These material properties change the amount of vibration energy required to be delivered to the interface [36].…”

mentioning

confidence: 99%

Advances in Ultrasonic Welding of Thermoplastic Composites: A Review

et al. 2020

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The ultrasonic welding (UW) technique is an ultra-fast joining process, and it is used to join thermoplastic composite structures, and provides an excellent bonding strength. It is more cost-efficient as opposed to the conventional adhesive, mechanical and other joining methods. This review paper presents the detailed progress made by the scientific and research community to date in the direction of the UW of thermoplastic composites. The focus of this paper is to review the recent development of the ultrasonic welding technique for thermoplastic composites to thermoplastic composites, and to dissimilar materials. Different ultrasonic welding modes and their processing parameters, namely, weld time, weld pressure, amplitude, type of energy directors (EDs) affecting the welding quality and the advantages and disadvantages of UW over other bonding techniques, are summarized. The current state of the ultrasonic welding of thermoplastic composites and their future perspectives are also deliberated.

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“…Welding attributes of thermoplastics aids in the cost-effectiveness of the composite part to be manufactured in an industrial environment from forming until the finishing steps [3][4][5][6]. The most feasible welding techniques available for fusion bonding of thermoplastic composites are resistance [7][8][9], induction [8,[10][11][12][13][14][15] and ultrasonic welding [6,[16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. These behave differently in the way the heat is generated at the welding interface.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Ultrasonic Welding Attributes of Novel Carbon/Elium® Composites

et al. 2020

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Joining large and complex polymer-matrix composite structures is becoming increasingly important in industries such as automobiles, aerospace, sports, wind turbines, and others. Ultrasonic welding is an ultra-fast joining process and also provides excellent joint quality as a cost-effective alternative to other joining processes. This research aims at investigating the welding characteristics of novel methyl methacrylate Elium ® , a liquid thermoplastic resin. Elium ® is the first of its kind of thermoplastic resin, which is curable at room temperature and is suitable for mass production processes. The welding characteristics of Elium ® composites were investigated by optimizing the welding parameters with specially designed integrated energy directors (ED) and manufactured using the Resin transfer molding process. The results showed a 23% higher lap shear strength for ultrasonically welded composite joints when compared to the adhesively bonded joints. The optimized welding time for the ultrasonic welded joint was found to be 1.5 s whereas it was 10 min for the adhesively bonded joint. Fractographic analysis showed the significant plastic deformation and shear cusps formation on the fractured surface, which are typical characteristics for strong interfacial bonding.

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Cited by 35 publications

References 0 publications

Dynamic frequency and voltage control for a multiple clock domain microarchitecture

Dynamic frequency and voltage control for a multiple clock domain microarchitecture

Advances in Ultrasonic Welding of Thermoplastic Composites: A Review

Investigation on Ultrasonic Welding Attributes of Novel Carbon/Elium® Composites

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