Optimum design of cutouts in laminated composite structures

Parametric combination resonance instability characteristics of laminated composite curved panels with circular cutout subjected to non-uniform loading with damping

“…Many researchers [3][4][5][6][7][8][9][10][11][12][13][14][15][16] have studied the vibration and compressive buckling behavior of the laminated composite plates with central circular or square cutouts. Brogan et al [17] presented analytical and experimental investigations of the dynamic behavior of closed circular cylindrical shell with a rectangular cutout.…”

Experimental percolation studies of random networks

“…Electrical percolation in two dimensions has been numerically studied using theoretical probability models. [1][2][3][4][5][6][7] While past research has shown how percolation can be studied experimentally, 8 no method exists to make precise and arbitrary pores in the sheet. The method established in this report allows percolation to be simulated with control of the pore shape, size, location, orientation (random or otherwise), and number.…”

Untitled

“…Even though the analysis of bending and stretching deformations of thin plates in the presence of various defects such as dislocations, holes, cracks, anti-cracks and inhomogeneities has received considerable attention (see, for example, [Sih and Rice 1964;Zakharov and Becker 2000;Hasebe and Wang 434 XU WANG AND PETER SCHIAVONE Wang and Hasebe 2000a;2000b;Reddy 2002, 2003;2004b;2004a;Yin 2005a;2005b;Wang and Schiavone 2013;Wang and Zhou 2013], the design of optimal hole shapes to minimize stress concentrations in laminated plates has, in contrast, been investigated by only a few researchers (see, for example, [Vellaichamy et al 1990;Budiansky et al 1993;Senocak and Waas 1995]. In this paper, we continue the work in this area by extending Bjorkman and Richards' harmonic field condition for linear plane elasticity to isotropic laminated plates.…”