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259 results on '"MINAK, G."'

1. Contributors

Author

Ahmadi, M., primary, Bahei-El-Din, Yehia, additional, Banerjee, A., additional, Baxevanakis, Konstantinos P., additional, Bouvet, Christophe, additional, Brechou, J., additional, Camilo Calle, Juan, additional, Chanda, A., additional, Chen, Tianyu, additional, Chen, Zhong, additional, Coe, J.D., additional, Coles, Laurence A., additional, Das, R., additional, Dattelbaum, D.M., additional, Fotouhi, M., additional, Harvey, Christopher M., additional, Hazell, Paul J., additional, Islam, Md Niamul, additional, Kwon, Young W., additional, Langdon, Genevieve S., additional, Maranon, Alejandro, additional, Minak, G., additional, Naik, N.K., additional, Ogi, Keiji, additional, Pablo Casas-Rodriguez, Juan, additional, Panciroli, R., additional, Phadnis, Vaibhav A., additional, Pinna, Christophe, additional, Rivallant, Samuel, additional, Robinson, Vicent, additional, Roy, Anish, additional, Salem, Serag, additional, Schiffer, Andreas, additional, Shazly, Mostafa, additional, Shi, Yu, additional, Silberschmidt, Vadim V., additional, Sinclair, Gregory M., additional, Soutis, Constantinos, additional, Tagarielli, Vito L., additional, Ullah, Himayat, additional, von Klemperer, Chris J., additional, Wang, Chen, additional, Wang, Hongxu, additional, Wang, Simon, additional, and Yashiro, Shigeki, additional

Published
2023
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5. Experimental investigation on delamination in nanocomposite drilling

Author

Karimi Zarif N., Heidary H., Yousefi J., Sadeghi S., and Minak G.

Subjects
nanocomposites, multi-walled carbon nanotubes, drilling process, delamination, taguchi, analysis of variance, Engineering (General). Civil engineering (General), TA1-2040, Mechanics of engineering. Applied mechanics, TA349-359
Abstract

This article addresses the influence of cutting parameters on drilling-induced delamination of woven glass fiber-epoxy composites reinforced with functionalized multi-walled carbon nanotubes (MWCNTs). The input parameters include feed rate, cutting speed, drill size, and wt. % carbon nanotubes present in nanocomposite laminates. Experiments were conducted based on Taguchi L16 orthogonal array and analysis of variance was conducted to determine the significance of each parameter. The results indicate that the main effects of nano content, feed rate, and spindle speed are significant, while the effect of drill diameter is negligible. Furthermore, the optimum drilling conditions for minimum delamination were determined according to the Taguchi’s S/N ratio analysis.

Published
2018

6. Damage analysis for low velocity impacted composite laminates using acoustic emission technique

Author

Yousefi J., Mahdian A., Karimi Zarif N., Heidary H., Ahmadi M., and Minak G.

Subjects
acoustic emission, fuzzy c-means, low velocity impact, damage, Engineering (General). Civil engineering (General), TA1-2040, Mechanics of engineering. Applied mechanics, TA349-359
Abstract

Characterization of dynamic induced damage is one of the most controversial issues in the application of composite structures. To this aim, Acoustic Emission (AE) technique has been qualified as a robust tool for damage sequence analysis due to its high sensitivity to damage mechanisms. First, AE reference map was created using a couple analysis of Fuzzy C-Means (FCM) clustering and Principal Component Analysis (PCA). The low velocity impact tests were then conducted on composite plates. Finally, Impact AE signals were discriminated and the sequence of damage mechanisms during impact process was discovered. As a result, it is concluded that AE method accompanied with the presented method is a new appropriate approach to discriminate damage mechanism sequences in impacted composite specimens.

Published
2018

12. Comparison of the effect of preload and curvature of composite laminate under impact loading

Author

Saghafi H., Brugo Tommaso Maria, Zucchelli A., Fragassa C., and Minak G.

Subjects
composite laminates, gfrp, curvature, pre-stress, impact loading, Engineering (General). Civil engineering (General), TA1-2040, Mechanics of engineering. Applied mechanics, TA349-359
Abstract

In this paper, the effect of preload on impact response of composite laminates is considered. To this aim, three specimens were manufactured and tested under 4 different impact conditions: 1- A curved laminate without preload. 2- A preloaded curved laminate, showing a lower radius of curvature due to the preload. 3- A curved laminate without preload but initial reduced curvature. The particular test conditions studied here allow estimating and discerning the effect of pre-stress and curvature on the impact response. Results show that the preload leads to an increased curvature, to which it follows that the maximum impact force and the damaged area increase significantly. The comparison of the impact response of the second and the third specimens show that, in the case of similar curvature, the preload leads to a lower damaged area. These results are particularly important for designing of curved composite components.

Published
2016

31. List of contributors

Author

Abrate, S., primary, Ahmadi, M., additional, Bahei-El-Din, Y., additional, Banerjee, A., additional, Bouvet, C., additional, Brechou, J., additional, Calle, J.C., additional, Casas-Rodriguez, J.P., additional, Chanda, A., additional, Coe, J.D., additional, Das, R., additional, Dattelbaum, D.M., additional, Fotouhi, M., additional, Hazell, P.J., additional, Kensrud, J., additional, Kwon, Y.W., additional, Langdon, G.S., additional, Maranon, A., additional, Massabò, R., additional, Minak, G., additional, Naik, N.K., additional, Ogi, K., additional, Phadnis, V.A., additional, Pinna, C., additional, Rivallant, S., additional, Robinson, V., additional, Roy, A., additional, Salem, S., additional, Schiffer, A., additional, Shazly, M., additional, Shi, Y., additional, Silberschmidt, V.V., additional, Sinclair, G.M., additional, Smith, L., additional, Soutis, C., additional, Tagarielli, V.L., additional, Ullah, H., additional, von Klemperer, C.J., additional, and Yashiro, S., additional

Published
2016
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33. Critical thrust force and feed rate determination in drilling of GFRP laminate with backup plate

Author

Heidary H., Mehrpouya M. A., Saghafi H., Minak G., Heidary H., Mehrpouya M.A., Saghafi H., and Minak G.

Subjects
Backup plate, Delamination, Analytical modelling, Drilling, Composite laminate
Abstract

Using backup plate is one of the most commonly used methods to decrease drilling-induced delamination of composite laminates. It has been shown that, the size of the delamination zone is related to the vertical element of cutting force named as thrust force. Also, direct control of thrust force is not a routine task, because, it depends on both drilling parameters and mechanical properties of the composite laminate. In this research, critical feed rate and thrust force are predicted analytically for delamination initiation in drilling of composite laminates with backup plate. Three common theories, linear elastic fracture mechanics, classical laminated plate and mechanics of oblique cutting, are used to model the problem. Based on the proposed analytical model, the effect of drill radius, chisel edge size, and backup plate size on the critical thrust force and feed rate are investigated. Experimental tests were carried out to prove analytical model.

Published
2020

44. Veicoli Solari

Author

LUKOVIC, MARKO, Fragassa C, Maglio S, Minak G, Pulvirenti B, Talamelli A, Lukovic M, Fragassa C, Maglio S, Minak G, Pulvirenti B, and Talamelli A

Subjects
Veicoli solari
Abstract

Domanda multipla di registrazione per Modello Comunitario “Veicoli Solari” (N. 006387387, depositato il 23.04.2019) relativo ad un prodotto classe ‘Automobili’ e Classificazione di Locarno n. 12.8, con lo scopo di proteggere tramite 21 viste le 3 evoluzioni di forma del veicolo solare (cod. ‘Emilia IV’).

Published
2019

45. Giunto Polimerico per Sospensioni Meccaniche di Veicoli Terrestri Leggeri

Author

Minak G, Fragassa C, Brugo T. M., Peghetti D., Pavlovic A., Baschetti G., Minak G, Fragassa C, Brugo T.M., Peghetti D., Pavlovic A., and Baschetti G.

Subjects
Veicoli terrestri, veicoli solari, sospensioni meccaniche, giunzione, Dyneema
Abstract

Brevetto di Invenzione Industriale con lo scopo di proteggere, quale ritrovato tecnico, l’utilizzo di fettucce in Dyneema® come parti di collegamento per sospensioni e parti strutturali in veicoli leggeri (es. motocicli, tricicli e quadricicli), nonché la relativa tecnologia che ha portato a sviluppare specifiche soluzioni di fissaggio e opportuni accorgimenti per eliminare il problema della deformazione viscoelastica del materiale. Grazie a questa invenzione, si è arrivati a sostituire le soluzioni standard, quali ad esempio i snodi sferici, con un risparmio in termini di peso dell’ordine del 50%, ma anche con diversi altri vantaggi, specialmente in termini di ingombri, funzionalità e manutenzione.

Published
2019

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