Preconditioned Conjugate Gradient Method Enhanced by Deflation of Rigid Body Modes Applied to Composite Materials

• Published in: Computer modeling in engineering & sciences Vol. 47; no. 2; pp. 97 - 118
• Main Authors: Jönsthövel, T B, M.B. Van Gijzen, C.Vuik, Kasbergen, C, Scarpas, A
• Format: Journal Article
• Language: English
• Published: Henderson Tech Science Press 2009
• Subjects: Bituminous cements; Composite materials; Conjugate gradient method; Conjugates; Iterative methods; Nonlinear programming; Rigid structures; Stiffness matrix

The introduction of computed x-ray tomography allows for the construction of high quality, material-per-element based 3D meshes in the field of structural mechanics. The use of these meshes enables a shift from meso to micro scale analysis of composite materials like cement concrete, rocks and aspha...