Chenchen Liu Email & Phone Number

California, United States

Palo Alto, California, Us

Multiphysics (thermal, mechanical, acoustic, and RF) finite element simulations (FEA) on Bulk Acoustic Wave (BAW) devices, including model generation, automation, and maintenance of codes.Advanced application of numerical methods (C, Java, Matlab) in FEM modeling and automation of RF tests and measurements with Python.

Philadelphia, Pa, Us

I. Multiscale and Multiphysics finite element modeling and simulation of mechanical and acoustic metamaterials.• Established a coarse-graining framework for dynamic homogenization in spirit of FE2 method with explicit/implicit Newmark method for time domain discretization.• Implemented the multiscale solver in MATLAB and DEAL.II (C++ based open-source software) for 2-D and 3-D heterogeneous structure. • Operated the open-source software in Linux environment; Enabled the multi-scale solver to run in parallel with MPI. Conducted the version control of the software development with Git; Post-processed the visualization with ParaView and Gnuplot; Compared the results with COMSOL and Abaqus.• Conducted modal analysis and analyzed the exotic properties of acoustic metamaterials composed of hard particle (Pb, steel) coated with soft elastomer embedded in epoxy matrix which has promising application in noise cancellation and vibration control.• Proved Hill's averaging theorem under finite element discretization, which was certified with a simulation of a highly inhomogeneous microstructure under large deformation by COMSOL.• Currently collaborating with experimental group of Prof. Raney (Penn) to manufacture and test the above designs with 3D printing.II. Broadband Acoustic Metamaterial with Hierarchical Architecture.• Designed a broadband acoustic meta-structure with optimized hierarchical microstructure.• Calculated the bandgap by equivalent spring-mass models and continuum model.• Simulated the transmission loss in COMSOL Frequency Domain.

Philadelphia, Pa, Us

Finite Element Method and its Applications (MEAM527/ENM427)• Led two recitations per week to class of 25 graduate students giving hands-on tutorials of COMSOL Multiphysics.• Nominated as the Outstanding Teaching Assistant in the Department of Mechanical Engineering & Applied Mechanics by Prof. Nikolaos Aravas.Topics in Computational Science and Engineering (ENM540)• Conducted hands-on tutorials of writing and running input file in ABAQUS.

Albuquerque, Nm, Us

Emergent homogenization techniques and effective dynamical properties.• Analyzed the procedure for selecting statistical and representative volume element (SVE and RVE, respectively) size for additively manufactured steels investigated at SNL.• Generated SVE and RVE through the exploration of statistical descriptors (n-point correlation functions). • Enabled structure-property correlation analysis (stress-strain evolution) by testing the effect of different RVE configurations on the static and dynamic macroscale response using the quasi-explicit multiscale solver written in C++.

西安, Shaanxi, Cn

Size-dependent properties of smart materials and structures.• Theoretically incorporated the effect of flexoelectricity on the electric potential distribution in a bent ZnO nanowire, which could fill the gap between experiment and theoretical results based on piezoelectricity.• Analyzed the acoustic dispersion properties of periodic structures with transfer matrix method.• Investigated the strain gradient effect on the band gap structures of non-piezoelectric materials (BaTiO3-SrTiO3 two-layered structure).

Hsinchu, Taiwan, Tw

• Selected to be an exchange student in National Chiao Tung University.• Studied in the Application of Thermal and Fluid Lab, supervised by Prof. Wu-Shung Fu, Department of Mechanical Engineering.• Won the 3rd Place of Creative Poster Design Contest.• Won the Winner of Creative Writing Contest.

Doctor Of Philosophy (Ph.D.), Mechanical Engineering And Applied Mechanics

Master'S Degree, Solid Mechanics

Bachelor'S Degree, Engineering Mechanics