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Jagadeesh, Dani.;Sudhakara, P.;Lee, D.W.;Kim, H.S.;Kim, B.S.;Song, J.I.
- Composites Research
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- v.26 no.4
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- pp.213-217
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- 2013
The focus in the present work is to study the agro-waste corn husk bio-filler as reinforcement for polypropylene. These materials have been created by extrusion and injection molding. The effect of filler content by 10, 20, 30 and 40 wt. % and mesh sizes of 50~100, 100 and 300 on the mechanical properties was studied. For the un-notched specimens, the results of flexural strength showed a declining trend with increase the filler loading and the results of impact strength showed an increasing trend with increase the mesh size. In contrast, enhanced flexural modulus was observed with increasing filler loading and size.
https://doi.org/10.7234/composres.2013.26.4.213 인용 PDF KSCI

Joshan, Yadwinder S.;Grover, Neeraj;Singh, B.N.
- Steel and Composite Structures
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- v.27 no.6
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- pp.761-775
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- 2018
In the present work, the recently developed non-polynomial shear deformation theories are assessed for thermo-mechanical response characteristics of laminated composite plates. The applicability and accuracy of these theories for static, buckling and free vibration responses were ascertained in the recent past by several authors. However, the assessment of these theories for thermo-mechanical analysis of the laminated composite structures is still to be ascertained. The response characteristics are investigated in linear and non-linear thermal gradient and also in the presence and absence of mechanical transverse loads. The laminated composite plates are modelled using recently developed six shear deformation theories involving different shear strain functions. The principle of virtual work is used to develop the governing system of equations. The Navier type closed form solution is adopted to yield the exact solution of the developed equation for simply supported cross ply laminated plates. The thermo-mechanical response characteristics due to these six different theories are obtained and compared with the existing results.
https://doi.org/10.12989/scs.2018.27.6.761 인용 KSCI

Lee, Chi-Wook;Weick, Brian
- Journal of Engineering Education Research
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- v.11 no.4
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- pp.76-93
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- 2008
Co-operative (Co-op) education is a college program that integrates classroom studies with paid, productive and real-life work experience. A mandatory Co-op program for the degree is introduced with a sample curriculum from the Mechanical Engineering program at University of the Pacific. The mandatory Co-op program requires a minimum of 7 months of work experience with the option of pursuing a 12 month program. Students also have the opportunity of participating in an Engineering Industry Fellowship (EIF) program or an International Engineering Co-op program (IECP). University of the Pacific has engineering programs in Bio-Engineering, Civil Engineering, Computer Engineering, Electrical Engineering, Engineering Management, Engineering Physics, and Mechanical Engineering. All the programs are ABET-accredited except the Bio-Engineering program, which is relatively new. The Co-op employers evaluate the Co-op students at the end of the working period before returning to school, and the students also provide an evaluation of their Co-op experience. Co-op employer evaluations of student work are used in ABET assessment methods developed by the Mechanical Engineering program at University of the Pacific.
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Zhao, Minghao;Qian, Caifu;Lee, S.W.R.;Tong, Pin;Suemasu, H.;Zhang, Tong-Yi
- Advanced Composite Materials
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- v.16 no.1
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- pp.63-81
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- 2007
Based on the Kirchhoff hypothesis of normal-remain-normal, the present work analyses piezoelectric laminated plates, wherein poled piezoelectric laminae are transversely isotropic and function as actuators. A quadric electric field is induced inside a piezoelectric lamina under a given applied voltage and mechanical bending. The governing equations for the piezoelectric laminated plate derived from the principle of virtual work in terms of the electric enthalpy have the same forms as those for a conventional composite laminated plate. We use rectangular sandwich plates of Al/PZT/Al and PZT/Al/PZT with four simply supported edges to demonstrate the prediction of the maximum bending stress in the PZT layer. The analytic solutions are verified by three-dimensional finite element analysis.
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