2020
DOI: 10.3390/app10155197
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Experimental and Numerical Simulation Study of the Vibration Properties of Thin Copper Films Bonded to FR4 Composite

Abstract: Printed circuit boards constitute the basis of most electronic devices and are mainly fabricated of thin copper films bounded to fiber epoxy laminates, such as FR4. Vibrational stress can induce device failure, and hence, studies addressing their modal properties have important applications. In this paper, cantilever samples made of bare copper bounded to FR4 have been studied to analyze, for the first time, the vibration behavior of specimens with different aspect ratios, with and without central holes of dif… Show more

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Cited by 7 publications
(4 citation statements)
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“…In this status, the size effect increases with the specimen size while static loading is decreasing. These results give a similar trend to that of References [ 12 , 49 ], which give a satisfied impression.…”
Section: Resultssupporting
confidence: 89%
See 1 more Smart Citation
“…In this status, the size effect increases with the specimen size while static loading is decreasing. These results give a similar trend to that of References [ 12 , 49 ], which give a satisfied impression.…”
Section: Resultssupporting
confidence: 89%
“…In this status, the size effect increases with the specimen size while static loading is decreasing. These results give a similar trend to that of References [12,49], which give a satisfied impression. It is listed in Table 7 that for material S1, the average natural frequency 78.368 and damping ratio 2.39, and they are 178.315 and 2.4, for mode 1 and 2, respectively.…”
Section: Modal Analysissupporting
confidence: 87%
“…The eigenvalues were determined as the product of a coefficient β and l b . The coefficient β is determined by solving the equation [36]:…”
Section: Simulation Researchmentioning
confidence: 99%
“…where: V b is the volume whole cantilever beam, VMFC is the volume MFC patches. For values of damping ratios, which were assumed [36]: ξ1 = ξ2 = 0.005, the calculated values of coefficients were as follows: α = 5.652, β = 2.10961 × 10 −6 .…”
Section: Simulation Researchmentioning
confidence: 99%