Guodong Zhang

TL;DR: In this paper, a density-based topology optimization framework for plastic energy absorbing structural designs with maximum damage constraint is proposed, which enables topologies to absorb large amount of energy via plastic work before failure occurs.

TL;DR: In this article, an isogeometric approach is presented for the formulation of finite elements for arbitrary spatially curved 3-D beams, which employ the same Non-Uniform Rational B-Spline interpolations as used in the CAD representations to interpolate both geometry and unknown fields in the finite element analysis, leading to a seamless transition between complex CAD models utilized by architects and the analysis models used by engineers.

TL;DR: In this article, a self-centering concrete wall with distributed friction devices is proposed to achieve seismic resilient building structures, where unbonded post-tensioned tendons, running vertically through wall panels, provide a restoring force that pulls the structure back toward its undeformed plumb position after earthquake.

TL;DR: A novel computational framework for designing metamaterials with negative Poisson's ratio over a large strain range is presented by combining the density-based topology optimization together with a mixed stress/deformation driven nonlinear homogenization method.