Analysis and optimization of agro waste composite beam structures

Yıl 2013, , 45 - 60, 01.06.2013

Maria Amélia Ramos Loja Tiago Alexandre Narciso Da Silva İnês De Carvalho Jerónimo Barbosa And Ca - Carlos Nuno Fernandes Simões

https://doi.org/10.12748/uujms/20131711

Öz

The present work, is focused on the study of beam type structures made of agro waste composite materials, namely of sawdust and palm kernel shell, and comprises two parts. A first one where the static and dynamic behavior characterization of the structure is carried out using a first order shear deformation theory approach, considering the influence of different fiber constituent’s percentages. In the second part, a few structural optimization case studies are considered concerning different objective functions and constraints, using sequential quadratic programming technique. Both, analysis and optimization studies were developed on a symbolic computation platform. According to the results obtained in the case studies carried out, it can be concluded that they respect the trends that would be expected, taking into account the nature of the parameters studied: the length to thickness ratio, the boundary conditions and the percentages of the reinforcement agents’ mixtures. A final aspect that is worth mentioning is related to the advantages of using such type of platform in research work, which enables for an integrated development and simulation environment, where the libraries access and the functionalities available, enable a more expedite and perceptive way of achieving results.

Anahtar Kelimeler

Natural fiber composites, agro waste composites, static and free vibration analysis, and structural optimization

Kaynakça

• Wambua P, Ivens J and Verpoest I. Natural fibres: “Can they replace glass in fibre reinforced plastics?” Composites Science and Technology, 2003; 63: 1259 – 1264.
• Ahankari SS, Mohanty AK and Misra M. Mechanical behaviour of agro-residue reinforced poly (3-hydroxybutyrate-co-3-hydroxyvalerate), (PHBV) green composites: A comparison with traditional polypropylene composites. Composites Science and Technology, 2011; 71: 653 – 657.
• Khalil HPSA, Marliana MM, Issam AM and Bakare IO. Exploring isolated lignin material from oil palm biomass waste in green composites. Materials and Design, 2011; 32: 2604 – 2610.
• Valente M, Sarasini F, Marra F, Tirillò J and Pulci G. Hybrid recycled glass fiber/wood flour thermoplastic composites: Manufacturing and mechanical characterization. Composites: Part A, 2011; 42: 649 – 657.
• Coutinho FMB, Costa THS, Suarez JCM and Melo DP. Sawdust reinforced polypropylene composites: a study of fracture behavior. Polymer Testing, 2000; 19: 625 – 633.
• Alves C, Ferrão PMC, Freitas M, Silva AJ, Luz SM and Alves DE. Sustainable design procedure: The role of composite materials to combine mechanical and environmental features for agricultural machines. Materials and Design, 2009; 30: 4060 – 4068.
• Osarenmwinda JO and Nwachukwu JC. Empirical models for estimating properties of developed composite material from agro waste. Journal of Emerging Trends in Engineering and Applied Sciences, 2010; 1(2): 179 – 183.
• Alves C, Dias APS, Diogo AC, Ferrão PMC, Silva AJ, Reis L and Freitas M. Ecocomposite: the effects of the jute fiber treatments on the mechanical and environmental performance of the composite materials. Journal of Composite Materials, 2010; 45(5): 573 – 589.
• Pandey JK, Ahn SH, Lee CS, Mohanty AK and Misra M. “Recent advances in the application of natural fiber based composites”. Macromolecular Materials and Engineering, 2010; 295: 975 – 989.
• Mishra S, Mohanty AK, Drzal LT, Misra M and Hinrichsen G. A review on pineapple leaf fibers, sisal fibers and their biocomposites. Macromolecular Materials and Engineering, 2004; 289: 955 – 974.
• John MJ and Thomas S. Biofibres and biocomposites. Carbohydrate Polymers, 2008; 71: 343 – 364.
• Saheb DN and Jog JP. Natural fiber polymer composites: A review. Advances in Polymer Technology, 1999; 18(4): 351 – 363.
• La Mantia FP and Morreale M. Green composites: A brief review. Composites: Part A, 2011; 42: 579 – 588.
• Silva FA, Chawla N and Toledo Filho RD. Tensile behavior of high performance natural (sisal) fibers. Composites Science and Technology, 2008; 68: 3438 – 3443.
• Vinson JR and Sierakowski RL. The Behavior of Structures Composed of Composite Materials, Martinus Nijhoff Publishers, 1986.
• Zienkiewickz OC and Taylor RL. The Finite Element Method. Elsevier Science, 5th edition, Butterworth-Heinemann, 1989.
• Wilson RB. A simplicial algorithm for concave programming, PhD Thesis, Harvard University, 1963.
• Han SP. A globally convergent method for nonlinear programming. Journal of Optimization Theory and Applications, 1977; 22: 297 – 309.
• Boggs PT and Tolle JW. Sequential Quadratic Programming. Acta Numerica, 1995; 4: 1 – 51.
• Gill PE and Wong E. Sequential Quadratic Programming Methods, in J. Lee and S. Leyffer (eds), Mixed Integer Nonlinear Programming. The IMA Volumes in Mathematics and its Applications, Springer Verlag, 2012; 154 (3): 147 – 224.