- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- Topology Optimization in Engineering
- Welding Techniques and Residual Stresses
- Manufacturing Process and Optimization
- Carbon Nanotubes in Composites
- Composite Structure Analysis and Optimization
- High Entropy Alloys Studies
- Graphene research and applications
- Microstructure and mechanical properties
- Advanced Multi-Objective Optimization Algorithms
- Composite Material Mechanics
- Cellular and Composite Structures
- Thermal properties of materials
- Numerical methods in engineering
- Force Microscopy Techniques and Applications
- Innovations in Concrete and Construction Materials
- Advanced machining processes and optimization
- Acoustic Wave Phenomena Research
- High-pressure geophysics and materials
- Laser Material Processing Techniques
- Boron and Carbon Nanomaterials Research
- Diamond and Carbon-based Materials Research
- Titanium Alloys Microstructure and Properties
- Injection Molding Process and Properties
University of Pittsburgh
2015-2024
Stevens Institute of Technology
2023
Material Sciences (United States)
2020
Consumer Healthcare Products Association
2014
Hong Kong Polytechnic University
2013
Cambridge University Press
2011
New York University Press
2011
University of California, Berkeley
2003-2010
Edwards Air Force Base
2010
Lawrence Berkeley National Laboratory
2009-2010
Cellular structures are promising candidates for additive manufacturing (AM) due to their lower material and energy consumption. In this work, an efficient method is proposed optimizing the topology of variable-density cellular be fabricated by certain AM process. The gains accuracy relating structure's microstructure continuous micromechanics models achieves efficiency through conducting continuum optimization at macroscopic scale. explicit structure then finally reconstructed mapping...
Purpose The purpose of the paper is to propose a homogenization-based topology optimization method optimize design variable-density cellular structure, in order achieve lightweight and overcome some manufacturability issues additive manufacturing. Design/methodology/approach First, homogenization performed capture effective mechanical properties structures through scaling law as function their relative density. Second, used directly algorithm compute optimal density distribution for part...
In metals additive manufacturing (AM), materials and components are concurrently made in a single process as layers of metal fabricated on top each other the near-final topology required for end-use product. Consequently, tens to hundreds part design degrees freedom must be simultaneously controlled understood; hence, AM is highly interdisciplinary technology that requires synchronized consideration physics, chemistry, science, physical metallurgy, computer electrical engineering, mechanical...
Broadband wave filtering effect is observed in a phononic crystal with hierarchical structure inspired by biocomposites. Through multilayered model structure, it demonstrated that the overall bandwidth covered closely adjacent bandgaps for this orders of magnitude broader frequency than conventional periodic single periodicity. This remarkable feature attributed to inherent multiscale periodicity microstructure, which roughly superimposes generated individual structures periods corresponding...
A new topology optimization method called the Proportional Topology Optimization (PTO) is presented. As a non-sensitivity method, PTO simple to understand, easy implement, and also efficient accurate at same time. It implemented into two MATLAB programs solve stress constrained minimum compliance problems. Descriptions of algorithm computer are provided in detail. The applied three numerical examples for both types shows comparable efficiency accuracy with an existing optimality criteria...