Composite grids

Composite grid to replace steel reinforcement of precast concrete panels. 

The stability surfaces show, that in general, researchers dealing with the same system, but operating under experimental conditions corresponding to different points on the composition grid, may report different values for the stability "constant."... 

In this paper, we shall touch the development of such numerical methods intended for the solution of the coupled evolution problems as e.g. thermoelasticity, which is described in Section 2. Here we also discuss the discretization of the evolution problems. As the computational demands are concentrated mainly in the solution of the arising linear systems, we shall focus on the application of suitable, efficient and parallelizable iterative solvers for these linear systems. Section 3 deals with some general techniques enhancing the efficiency of the iterative solution of discrete evolution problems. Section 4 is devoted to a short discussion of the numerical results. In Section 5, we shall describe solvers, which exploit the domain decomposition and parallel computations. Here we also mention another division techniques as displacement decomposition or composite grid methods. 

Note that similar methods can be applied also to the solution of systems arising from the time-dependent heat conduction - convection problems. There are also other space decomposition methods. Let us mention the displacement decomposition technique for solving the elasticity problems and composite grid technique, for solving problems, which need a local resolution. More details can be found in Blaheta (2002) and Blaheta et al. (2002b). 

Dutta, P.K., Bailey, D.M., Tsai, S.W., Jensen, D.W., Hayes Jr, J.R., McDonald, W.E., Smart, C.W., Colwell, T., Earl, J.S., and Chen, H.J. (1998) Composite Grid/Frame Reinforcement for Concrete Structures, Construction Productivity Advancement Research (CPAR) Program, USACERL Technical Report 98/81. 

Han, D.Y. and Tsai, S.W. (2003) Interlocked composite grids design and manufacturing. Journal of Composite Materials, 37, 287-316. 

Rayleigh Quotient Iteration for Electronic Structure Calculations on Composite Grids. 

Composite Grid Atomistic Continuum Method An Adaptive Approach to Bridge Continuum with Atomistic Analysis. 

FIGURE 23.12a Composite grid, radial conductor. Grid combines diagonal conducting members with light robust plastic frame. 

Many concepts were developed to overcome one of the main drawbacks of the lead-acid system the heavy supporting lead structures (grids, connectors, etc.). Lead foam [89], lead-plated carbon rods [90], electroplated vitreous carbon [91], flexible-graphite grids [92], or graphite foams [93] were tested, also lead-plated materials like titanium [94], Ebonex [95], copper mesh [96], polymeric structures [97], polymer foam [98], or glass fiber mesh [99]. Warlimont and Hofmann [100] describe the development of multilayer composite grids. 

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