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Browsing Research Publications (Engineering and Built Environment) by Title

Now showing items 1-20 of 32

Chemical treatment of sisal fiber using alkali and clay method

Mohan, T. P.; Kanny, Krishnan (Elsevierhttp://www.sciencedirect.com/science/article/pii/S1359835X12002138, 2012-07-24)

In this study the chemical treatment of sisal fiber using the combined alkali (NaOH) and clay is discussed. The purpose of this fiber treatment is to improve the fiber–matrix compatibility, interface strength, mechanical, ...
A computational methodology to select the best material combinations and optimally design composite sandwich panels for minimum cost

Walker, Mark; Smith, Ryan E. (Elsevierhttp://dx.doi.org/10.1016/S0045-7949(02)00092-5, 2002)

A procedure to select the best material combination and optimally design sandwich laminates with fibre reinforced skins and low density cores for minimum cost is described. Sandwich constructions generally provide improved ...
Correlation between elastic and electric properties for cyclically loaded metals

Sevostianov, Igor; Bogarapu, Mahesh; Tabakov, Pavel Y. (Springer, 2005)

A new method of evaluation of the elastic property deterioration due to accumulated damage is suggested and experimentally verified. It is based on the explicit correlations between two groups of anisotropic properties – ...
Effect of nanoclay in HDPE–glass fiber composites on processing, structure, and properties

Mohan, T. P.; Kanny, Krishnan (Taylor and Francishttp://dx.doi.org/10.1080/09243046.2012.736348, 2012-10-23)

Natural Na+ montmorillonite (MMT) microclay and organo-treated MMT nanoclay were independently filled in a high-density polyethylene (HDPE) polymer and HDPE–glass fiber (GF) composite and the rheological and mechanical ...
Lay-up optimization of multilayered anisotropic cylinders based on a 3-D elasticity solution

Tabakov, Pavel Y.; Summers, E. B. (Elsevierhttp://dx.doi.org/10.1016/j.compstruc.2005.09.023, 2006)

Exact elasticity solutions are obtained using the stress function approach, where the radial, circumferential and shear stresses are determined, taking into account the closed ends of the cylindrical shell. The system of ...
A method for optimally designing laminated plates subject to fatigue loads for minimum weight using a cumulative damage constraint

Walker, Mark (Elsevierhttp://dx.doi.org/10.1016/S0263-8223(99)00097-5, 2000)

A procedure to optimally design laminated plates for a specific cyclic life using a cumulative damage constraint is described. The objective is minimum weight, and the design variables are the fiber orientation, and the ...
A methodology for optimally designing fibre-reinforced laminated structures with design variable tolerances for maximum buckling strength

Walker, Mark; Hamilton, Ryan Jason (Elsevierhttp://dx.doi.org/10.1016/j.tws.2004.07.001, 2005)

A procedure to design symmetrically laminated structures for maximum buckling load with manufacturing uncertainty in the ply angle—which is the design variable, is described. It is assumed that the probability of any ...
A methodology to design fibre reinforced laminated composite structures for maximum strength

Walker, Mark; Smith, Ryan E. (Elsevierhttp://dx.doi.org/10.1016/S1359-8368(02)00079-3, 2003)

A procedure to select the optimal fibre orientations and determine the maximum load carrying capacity of symmetrically laminated fibre reinforced composite structures is described. Cylindrical shells subject to combinations ...
Minimum weight design of composite hybrid shells via symbolic computation

Walker, Mark; Reiss, Talmon; Adali, Sarp (Elsevierhttp://dx.doi.org/10.1016/S0016-0032(96)00066-X, 1997)

The best layup for a hybrid laminated cylindrical shell subject to a buckling load constraint is determined. The objective of the optimisation is the minimum weight design of these structures. The ply angle is taken as ...
Multi-dimensional design optimisation of laminated structures using an improved genetic algorithm

Tabakov, Pavel Y. (http://dx.doi.org/10.1016/S0263-8223(01)00109-X, 2001)

The present study demonstrates a new variation of the genetic algorithm (GA) technique for engineering applications. This approach is highly efficient for many classes of engineering problems. The proposed selection of the ...
Multiobjective design of laminated plates for maximum stability using the finite element method

Walker, Mark (Elsevierhttp://dx.doi.org/10.1016/S0263-8223(01)00114-3, 2001)

Finite element solutions are presented for the optimal multiobjective design of symmetrically laminated rectangular plates subject to a combination of simply supported, clamped and free boundary conditions. The design ...
Multiobjective optimisation of laminated I-beams for maximum crippling, buckling and postbuckling strength

Walker, Mark (Elsevierhttp://dx.doi.org/10.1016/S1359-8368(97)00016-4, 1998)

The present study deals with the optimal design of uniaxially loaded laminated I-beams for a maximum combination of crippling and buckling load, in the first instance, and a maximum combination of buckling load and ...
Multiobjective optimization of laminated plates for maximum prebuckling, buckling and postbuckling strength using continuous and discrete ply angles

Adali, Sarp; Walker, Mark; Verijenko, Viktor E. (Elsevier.http://dx.doi.org/10.1016/0263-8223(96)00030-X, 1996)

The optimal design of uniaxially loaded laminated plates subject to elastic in-plane restraints along the unloaded edges are given for a maximum combination of prebuckling stiffness, postbuckling stiffness and buckling ...
Optimal design of fibre-reinforced laminated plates accounting for manufacturing uncertainty

Walker, Mark (Springerhttp://www.springerlink.com/content/g6g74t1u24815808/fulltext.pdf, 2005)

A procedure to design symmetrically laminated plates under buckling loads for minimum weight with manufacturing uncertainty (tolerance) in the ply angle and plate thickness, which are the design variables, is described. A ...
Optimal design of symmetrically laminated plates for maximum buckling temperature

Walker, Mark; Reiss, Talmon; Adali, Sarp; Verijenko, Viktor E. (Taylor & Francishttp://dx.doi.org/10.1080/01495739708956089, 1997)

The optimal designs of laminated plates subject to nonuniform temperature distributions are givenfor maximum bucklingtemperature. The method ofsolution involves the finite element method based on Mindlin plate theory and ...
Optimal design of symmetrically laminated plates for minimum deflection and weight

Walker, Mark; Reiss, Talmon; Adali, Sarp (Elsevierhttp://dx.doi.org/10.1016/S0263-8223(97)00109-8, 1997)

The minimum deflection and weight designs of laminated composite plates are given. The finite element method using Mindlin plate theory is used in conjunction with optimisation routines in order to obtain the optimal ...
Optimal design of symmetric angle-ply laminates subject to nonuniform buckling loads and in-plane restraints

Walker, Mark; Adali, Sarp; Verijenko, Viktor E. (Elsevierhttp://dx.doi.org/10.1016/0263-8231(96)00002-X, 1996)

Optimal buckling designs of symmetrically laminated rectangular plates under in-plane uniaxial loads" which have a nonuniform distribution along the edges are presented. In particular, point loads, partial uniJorm loads ...
Optimal design of symmetric laminates with cut-outs for maximum buckling load

Walker, Mark (Elsevierhttp://dx.doi.org/10.1016/S0045-7949(98)00167-9, 1999)

Finite element solutions are presented for the optimal design of symmetrically laminated rectangular plates with central circular cut-outs subject to a combination of simply supported, clamped and free boundary conditions. ...
Optimization of symmetric laminates for maximum buckling load including the effects of bending-twisting coupling

Walker, Mark; Adali, Sarp; Verijenko, Viktor E. (Elsevierhttp://dx.doi.org/10.1016/0045-7949(95)00138-7, 1996)

Finite element solutions are presented for the optimal design of symmetrically laminated rectangular plates subjected to a combination of simply supported, clamped and free boundary conditions. The design objective is the ...
A procedure to select the best material combinations and optimally design composite sandwich cylindrical shells for minimum mass

Walker, Mark; Smith, Ryan E. (Elsevierhttp://dx.doi.org/10.1016/j.matdes.2004.10.003, 2006)

A methodology to select the best material combination and optimally design composite sandwich cylinders having fibre reinforced skins and low density cores for minimum mass is described. Sandwich constructions generally ...

Now showing items 1-20 of 32

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