• Title/Summary/Keyword: Mechanical engineering

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Mechanical Properties of Corn Husk Flour/PP Bio-composites

  • 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.

Assessment of non-polynomial shear deformation theories for thermo-mechanical analysis of laminated composite plates

  • 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.

Co-operative Education at University of the Pacific and Its Assessment for ABET Accreditation of Mechanical Engineering Program

  • 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.