Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Abteilungen OPUS4-3303 Wissenschaftlicher Artikel Ilyani Akmar, A.B.; Lahmer, Tom; Bordas, Stéphane Pierre Alain; Beex, L.A.A.; Rabczuk, Timon Uncertainty quantification of dry woven fabrics: A sensitivity analysis on material properties Uncertainty quantification of dry woven fabrics: A sensitivity analysis on material properties 16 Composite Structures 1 17 10.1016/j.compstruct.2014.04.014 Institut für Strukturmechanik (ISM) OPUS4-3318 Wissenschaftlicher Artikel Beex, L.A.A.; Kerfriden, Pierre; Rabczuk, Timon; Bordas, Stéphane Pierre Alain Quasicontinuum-based multiscale approaches for plate-like beam lattices experiencing in-plane and out-of-plane deformation Quasicontinuum-based multiscale approaches for plate-like beam lattices experiencing in-plane and out-of-plane deformation Computer Methods in Applied Mechanics and Engineering Institut für Strukturmechanik (ISM) OPUS4-3313 Wissenschaftlicher Artikel Nguyen, V.P.; Kerfriden, Pierre; Bordas, Stéphane Pierre Alain; Rabczuk, Timon Isogeometric analysis suitable trivariate NURBS representation of composite panels with a new offset algorithm Isogeometric analysis suitable trivariate NURBS representation of composite panels with a new offset algorithm Computer-Aided Design Institut für Strukturmechanik (ISM) OPUS4-3345 Wissenschaftlicher Artikel Thai, Chien H.; Ferreira, A.J.M.; Bordas, Stéphane Pierre Alain; Rabczuk, Timon; Nguyen-Xuan, Hung Isogeometric analysis of laminated composite and sandwich plates using a new inverse trigonometric shear deformation theory Isogeometric analysis of laminated composite and sandwich plates using a new inverse trigonometric shear deformation theory 19 European Journal of Mechanics 89 108 Institut für Strukturmechanik (ISM) OPUS4-3342 Wissenschaftlicher Artikel Chen, Lei; Nguyen-Thanh, Nhon; Nguyen-Xuan, Hung; Rabczuk, Timon; Bordas, Stéphane Pierre Alain; Limbert, Georges Explicit finite deformation analysis of isogeometric membranes Explicit finite deformation analysis of isogeometric membranes 26 Computer Methods in Applied Mechanics and Engineering 104 130 Institut für Strukturmechanik (ISM) OPUS4-3325 Wissenschaftlicher Artikel Budarapu, Pattabhi Ramaiah; Gracie, Robert; Bordas, Stéphane Pierre Alain; Rabczuk, Timon An adaptive multiscale method for quasi-static crack growth This paper proposes an adaptive atomistic- continuum numerical method for quasi-static crack growth. The phantom node method is used to model the crack in the continuum region and a molecular statics model is used near the crack tip. To ensure self-consistency in the bulk, a virtual atom cluster is used to model the material of the coarse scale. The coupling between the coarse scale and fine scale is realized through ghost atoms. The ghost atom positions are interpolated from the coarse scale solution and enforced as boundary conditions on the fine scale. The fine scale region is adaptively enlarged as the crack propagates and the region behind the crack tip is adaptively coarsened. An energy criterion is used to detect the crack tip location. The triangular lattice in the fine scale region corresponds to the lattice structure of the (111) plane of an FCC crystal. The Lennard-Jones potential is used to model the atom-atom interactions. The method is implemented in two dimensions. The results are compared to pure atomistic simulations; they show excellent agreement. 19 Computational Mechanics 1129 1148 10.1007/s00466-013-0952-6 Institut für Strukturmechanik (ISM) OPUS4-3327 Wissenschaftlicher Artikel Talebi, Hossein; Silani, Mohammad; Bordas, Stéphane Pierre Alain; Kerfriden, Pierre; Rabczuk, Timon A computational library for multiscale modeling of material failure A computational library for multiscale modeling of material failure Computational Mechanics Institut für Strukturmechanik (ISM) OPUS4-3324 Wissenschaftlicher Artikel Nguyen-Xuan, Hung; Nguyen, Hiep Vinh; Bordas, Stéphane Pierre Alain; Rabczuk, Timon; Duflot, Marc A cell-based smoothed finite element method for three dimensional solid structures This paper extends further the strain smoothing technique in finite elements to 8-noded hexahedral elements (CS-FEM-H8). The idea behind the present method is similar to the cell-based smoothed 4-noded quadrilateral finite elements (CS-FEM-Q4). In CSFEM, the smoothing domains are created based on elements, and each element can be further subdivided into 1 or several smoothing cells. It is observed that: 1) The CS-FEM using a single smoothing cell can produce higher stress accuracy, but insufficient rank and poor displacement accuracy; 2) The CS-FEM using several smoothing cells has proper rank, good displacement accuracy, but lower stress accuracy, especially for nearly incompressible and bending dominant problems. We therefore propose 1) an extension of strain smoothing to 8-noded hexahedral elements and 2) an alternative CS-FEM form, which associates the single smoothing cell issue with multi-smoothing cell one via a stabilization technique. Several numerical examples are provided to show the reliability and accuracy of the present formulation. 12 KSCE Journal of Civil Engineering 1230 1242 10.1007/s12205-012-1515-7 Institut für Strukturmechanik (ISM)