publication venue for Bi-fidelity reduced polynomial chaos expansion for uncertainty quantification 2021 Bi-fidelity stochastic gradient descent for structural optimization under uncertainty 2020 Multigrid solvers for immersed finite element methods and immersed isogeometric analysis 2020 Computational modeling of the large deformation and flow of viscoelastic polymers 2019 Phoretic motion of soft vesicles and droplets: an XFEM/particle-based numerical solution 2017 Heaviside enriched extended stochastic FEM for problems with uncertain material interfaces 2015 A peridynamics-SPH coupling approach to simulate soil fragmentation induced by shock waves 2015 A simple and efficient preconditioning scheme for heaviside enriched XFEM 2014 Extended particle difference method for moving boundary problems 2014 Density and level set-XFEM schemes for topology optimization of 3-D structures 2014 Extended particle difference method for weak and strong discontinuity problems: part I. Derivation of the extended particle derivative approximation for the representation of weak and strong discontinuities 2014 Extended particle difference method for weak and strong discontinuity problems: part II. Formulations and applications for various interfacial singularity problems 2014 Extended stochastic FEM for diffusion problems with uncertain material interfaces 2013 Discrete spectrum analyses for various mixed discretizations of the Stokes eigenproblem 2012 Cardiovascular flow simulation at extreme scale 2010 Multi-length scale micromorphic process zone model 2009 A comparative study on finite element methods for dynamic fracture 2008 Nodally exact Ritz discretizations of 1D diffusion-absorption and Helmholtz equations by variational FIC and modified equation methods 2007 A mixed least squares method for solving problems in linear elasticity: theoretical study 2002 A family of implicit partitioned time integration algorithms for parallel analysis of heterogeneous structural systems 2000 A localized Version of the method of Lagrange multipliers and its applications 2000 Construction of optimal 3-node plate bending triangles by templates 1999 Parametrized variational principles in dynamics applied to the optimization of dynamic models of plates 1997 A 3-D boundary element formulation of viscoelastic media with gravity 1997 A mixed least squares method for solving problems in linear elasticity: Formulation and initial results 1997 Recent progress in parametrized variational principles for mechanics 1996