787 citations · 5.8k across the 76 of their papers we have counts for
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A multi-material level set-based topology optimization of flexoelectric composites
Hamid Ghasemi, Harold S. Park, Timon Rabczuk
We present a computational design methodology for topology optimization of multi-material-based flexoelectric composites. The methodology extends our recently proposed design metho…
Accelerated search and design of stretchable graphene kirigami using machine learning
Paul Z. Hanakata, Ekin D. Cubuk, David K. Campbell +1
Making kirigami-inspired cuts into a sheet has been shown to be an effective way of designing stretchable materials with metamorphic properties where the 2D shape can transform int…
A Staggered Explicit-Implicit Finite Element Formulation for Electroactive Polymers
Saman Seifi, K. C. Park, Harold S. Park
Electroactive polymers such as dielectric elastomers (DEs) have attracted significant attention in recent years. Computational techniques to solve the coupled electromechanical sys…
Coarse-grained model of the J-integral of carbon nanotube reinforced polymer composites
Behrouz Arash, Harold S. Park, Timon Rabczuk
The J-integral is recognized as a fundamental parameter in fracture mechanics that characterizes the inherent resistance of materials to crack growth. However, the conventional met…
Surface Shear Transformation Zones in Amorphous Solids
Penghui Cao, Xi Lin, Harold S. Park
We perform a systematic study of the characteristics of shear transformation zones (STZs) that nucleate at free surfaces of two-dimensional amorphous solids subject to tensile load…
Highly Deformable Graphene Kirigami
Zenan Qi, Harold S. Park, David K. Campbell
Graphene's exceptional mechanical properties, including its highest-known stiffness (1 TPa) and strength (100 GPa) have been exploited for various structural applications. However,…