Waseda University
Takezawa laboratory
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Waseda University
Takezawa laboratory

Publication

2022

  1. Zhiyuan Jia, Yangjun Luo, Akihiro Takezawa, Xiaopeng Zhang, Topology optimization for realizing tailored self-collimation in phononic crystals, International Journal for Numerical Methods in Engineering, in press, 0, 2022.
  2. Heng Zhang, Akihiro Takezawa, Xiaohong Ding, Xiaopeng Zhang, Shipeng Xu, Hao Li, Shuya Nozawa, Shinji Nishiwaki, Robust topology optimization of biodegradable composite structures under uncertain degradation rates, Composite Structures, 291, 115593, 2022.
  3. J. Nomura, A. Takezawa, H. Zhang, M. Kitamura, Design optimization of functionally graded lattice infill total hip arthroplasty stem for stress shielding reduction, Proc. Inst. Mech. Eng. H, 236, pp. 515-525, 2022.
  4. H. Guo, K. Ichikawa, H. Sakai, H. Zhang, X. Zhang, K. Tsuruta, K. Makihara, A. Takezawa, Numerical and Experimental Analysis of Additively Manufactured Particle Dampers at Low Frequencies, Powder Technology, 396B, pp. 696-709, 2022.


2021

  1. H. Zhang, A. Takezawa, X. Ding, H. Guo, W. Ni, X. Zhang, Topology optimization of composite macrostructure with multi-phase viscoelastic composite microstructures for enhanced structural damping, Composite Structures, 278, 114712, 2021.
  2. A. Takezawa, Q. Chen, A. C. To, Optimally Variable Density Lattice to Reduce Warping Thermal Distortion of Laser Powder Bed Fusion, Additive Manufacturing, 48B, 102422, 2021.
  3. H. Zhang, A. Takezawa, X. Ding, S. Xu, P. Duan, H. Li, H. Guo, Bi-material microstructural design of biodegradable composites using topology optimization, Materials & Design, 209, 109973, 2021.
  4. Q. Chen, H. Taylor, A. Takezawa, X. Liang, X. Jimenez, R. Wicker, A. C. To, Island scanning pattern optimization for residual deformation mitigation in laser powder bed fusion via sequential inherent strain method and sensitivity analysis, Additive Manufacturing, 46, 102116, 2021.
  5. H. Zhang, A. Takezawa, X. Ding, S. Xu, H. Li, H. Guo, Topology optimization of degradable composite structures with time changeable stiffness, International Journal for Numerical Methods in Engineering, 122, pp. 4751-4773, 2021.
  6. M. Honda, C. Kawamura, I. Kizaki, Y. Miyajima, A. Takezawa, M. Kitamura, Construction of Design Guidelines for Optimal Automotive Frame Shape Based on Statistical Approach and Mechanical Analysis, Computer Modeling in Engineering & Sciences, 128, pp. 731-742, 2021.
  7. A. Ueno, H. Guo, A. Takezawa, R. Moritoyo, M. Kitamura, Temperature Distribution Design Based on Variable Lattice Density Optimization and Metal Additive Manufacturing, Symmetry, 13, 1194, 2021.
  8. A. M. Vilardell, A. Takezawa, A. du Plessis, N. Takata, P. Krakhmalev, M. Kobashi, M. Albu, G. Kothleitner, I. Yadroitsava, I. Yadroitsev, Mechanical behavior of in-situ alloyed Ti6Al4V(ELI)-3 at. Cu lattice structures manufactured by laser powder bed fusion and designed for implant applications, Journal of the Mechanical Behavior of Biomedical Materials, 113, 104130, 2021.


2020

  1. A. Takezawa, A. C. To, Q. Chen, X. Liang, F. Dugast, X. Zhang, M. Kitamura, Sensitivity analysis and lattice density optimization for sequential inherent strain method used in additive manufacturing process, Computer Methods in Applied Mechanics and Engineering, 370, 113231, 2020.
  2. D. Woo, M. Kitamura, A. Takezawa, Method to systemically order welding sequence to efficiently mitigate welding displacement of a general ship grillage structure, Ships and Offshore Structures, 15, pp. 753-768, 2020.
  3. H. Guo, A. Takezawa, M. Honda, C. Kawamura, M. Kitamura, Finite element simulation of the compressive response of additively manufactured lattice structures with large diameters, Computational Materials Science, 175, 109610, 2020.
  4. D. Woo, M. Kitamura, A. Takezawa, Systematic method for positioning clamps and strongbacks based on their influence on welding displacements, Ocean Engineering, 202, 107084, 2020.
  5. A. Takezawa, X. Zhang, T. Tanaka, M. Kitamura, Topology optimisation of a porous unit cell in a fluid flow considering Forchheimer drag, International Journal of Computational Fluid Dynamics, 34, pp. 50-60, 2020.


2019

  1. A. Takezawa, X. Zhang, M. Kitamura, Optimization of an Additively Manufactured Functionally Graded Lattice Structure with Liquid Cooling Considering Structural Performances, International Journal of Heat and Mass Transfer, 143C, 118564, 2019.
  2. A. M. Vilardell, A. Takezawa, A. du Plessis, N. Takata, P. Krakhmalev, M. Kobashi, I. Yadroitsava, I. Yadroitse, Topology optimization and characterization of Ti6Al4V ELI cellular lattice structures by laser powder bed fusion for biomedical applications., Materials Science and Engineering: A, 766, 138330, 2019.
  3. A. Takezawa, X. Zhang, M. Kato, M. Kitamura, Method to Optimize an Additively-Manufactured Functionally-Graded Lattice Structure for Effective Liquid Cooling, Additive Manufacturing, 28, pp. 285-298, 2019.
  4. G. L. Putra, M. Kitamura, A. Takezawa, Structural optimization of stiffener layout for stiffened plate using hybrid GA, International Journal of Naval Architecture and Ocean Engineering, 11, pp. 809-818, 2019.
  5. X. Zhang, A. Takezawa, Z. Kang, A phase-field based robust topology optimization method for phononic crystals design considering uncertain diffuse regions, Computational Materials Science, 160, pp. 159-172, 2019.
  6. A. Takezawa, T. Yamamoto, X. Zhang, K. Yamakawa, S. Nakano. M. Kitamura, An objective function for the topology optimization of sound-absorbing materials, Journal of Sound and Vibration, 443, pp. 804-819, 2019.
  7. A. Takezawa, X. Zhang, Y. Koizumi, Numerical study on the effective stiffness of topology-optimized lattice structures made of orthotropic crystal grains with optimal orientation, Computational Materials Science, 159, pp. 202-209, 2019.
  8. X. Zhang, A. Takezawa, Z. Kang, Robust topology optimization of vibrating structures considering random diffuse regions via a phase-field method, Computer Methods in Applied Mechanics and Engineering, 344, pp. 766-797, 2019.
  9. L. Suo, Z. Lei, S. Zhao, Z. Wu. A. Takezawa, Study on sliding-window length based on Rayleigh backscattering spectrum correlation in distributed optical-fiber strain measurement, Optical Fiber Technology, 47, pp. 126-132, 2019.
  10. L. Suo, Z. Lei, S. Zhao, Z. Wu. A. Takezawa, Reliability-Guided Rayleigh Backscattering Spectrum Correlation Method for Distributed Strain Measurements in Optical Fibers, Journal of Modern Optics, 66, pp. 512-520, 2019.
  11. Z. Liu, S. Cho, A. Takezawa, X. Zhang, M. Kitamura, Two-stage layout-size optimization method for prow stiffeners, International Journal of Naval Architecture and Ocean Engineering, 11, pp. 44-51, 2019.


2018

  1. A. Takezawa, K. Yonekura, Y. Koizumi, X. Zhang, M. Kitamura, Isotropic Ti-6Al-4V lattice via topology optimization and electron beam melting, Additive Manufacturing, 22, pp. 634-642, 2018.
  2. X. Zhang, A. Takezawa, Z. Kang, Topology optimization of piezoelectric smart structures for minimum energy consumption under active control, Structural and Multi-disciplinary Optimization, 58, pp. 185-199, 2018.
  3. J. Liu, A. T. Gaynor, S. Chen, Z. Kang, K. Suresh, A. Takezawa, L. Li, J. Kato, J. Tang, C. C. L. Wang, L. Cheng, X. Liang, A. C. To, Current and future trends in topology optimization for additive manufacturing, Structural and Multi-disciplinary Optimization, 57, pp. 2453-2483, 2018.
  4. X. Zhang, J. He, Z. Kang, A. Takezawa, Robust topology optimization of phononic crystals with random field uncertainty, International Journal for Numerical Methods in Engineering, 115, pp. 1154-1173, 2018.
  5. A. Takezawa, K. Takenaka, X. Zhang, Inverse analysis of giant macroscopic negative thermal expansion of Ca2RuO4-y ceramics based on elasticity and structural topology optimization, Applied Physics Express, 11, 55801, 2018.
  6. A. Takezawa, J. W. Lee, M. Kitamura, Design methodology of magnetic fields and structures for magneto-mechanical resonator based on topology optimization, Optimization and Engineering, 19, pp. 19-38, 2018.


2017

  1. A. Takezawa, M. Kobashi, Design methodology for porous composites with tunable thermal expansion produced by multi-material topology optimization and additive manufacturing, Composites Part B: Engineering, 131, pp. 21-29, 2017.
  2. A. Takezawa, Y. Koizumi, M. Kobashi, High-stiffness and strength porous maraging steel via topology optimization and selective laser melting, Additive Manufacturing, 18, pp. 194-202, 2017.
  3. T. Nishizu, A. Takezawa, M. Kitamura, Eigenfrequecy-based Damage Identification Method for Non-destructive Testing Based on Topology Optimization, Engineering Optimization, 49, pp. 417-433, 2017.
  4. A. Takezawa, M. Kobashi, Y. Koizumi, M. Kitamura, Porous metal produced by selective laser melting with effective isotropic thermal conductivity close to the Hashin-Shtrikman bound, International Journal of Heat and Mass Transfer, 105, pp. 564-572, 2017.


2016

  1. Y. Koizumi, A. Okazaki, A. Chiba, T. Kato, A. Takezawa, Cellular Lattices of Biomedical Co-Cr-Mo-Alloy Fabricated by Electron Beam Melting with the Aid of Shape Optimization, Additive Manufacturing, 12, pp. 305-313, 2016.
  2. A. Takezawa, M. Daifuku, Y. Nakano, K. Nakagawa, T. Yamamoto, M. Kitamura, Topology optimization of damping material for reducing resonance response based on complex dynamic compliance, Journal of Sound and Vibration, 365, pp. 230-243, 2016.
  3. M. Daifuku, T. Nishizu, A. Takezawa, M. Kitamura, H. Terashita, Y. Ohtsuki, Design methodology using topology optimization for anti-vibration reinforcement of generators in a ship's engine room, Proceedings of the Institution of Mechanical Engineers - Part M: Journal of Engineering for the Maritime Environment, 230, pp. 216-226, 2016.


2015

  1. A. Takezawa, M. Kobashi, M. Kitamura, Porous composite with negative thermal expansion obtained by photopolymer additive manufacturing, APL Materials, 3, 76103, 2015.
  2. K. Makihara, A. Takezawa, D. Sigeta, Y. Yamamoto, Power evaluation of advanced energy-harvester using graphical analysis, Mechanical Engineering Journal, 2, 14-00444, 2015.


2014

  1. A. Takezawa, M. Haraguchi. T. Okamoto, M. Kitamura, Cross-sectional optimization of whispering-gallery mode sensor with high electric field intensity in the detection domain, IEEE Journal of Selected Topics in Quantum Electronics, 20, 5300110, 2014.
  2. A. Takezawa, G.H. Yoon, S.H. Jeong, M. Kobashi, M. Kitamura, Structural topology optimization with strength and heat conduction constraints, Computer Methods in Applied Mechanics and Engineering, 276, pp. 341-361, 2014.
  3. M. Daifuku, A. Takezawa, M. Kitamura, H. Terashita, Y. Ohtsuki, Smooth operators iron out engine room vibrations, The Naval Architect, February 2014, pp. 62-64, 2014.
  4. S.H. Jeong, G.H. Yoon, A. Takezawa, D.H. Choi, Development of a novel phase-field method for local stress-based shape and topology optimization, Computers & Structures, 132, pp. 84-98, 2014.
  5. A. Takezawa, M. Kitamura, S.L. Vatanabe, E.C.N. Silva, Design methodology of piezoelectric energy-harvesting skin using topology optimization, Structural and Multi-disciplinary Optimization, 49, pp. 281-297, 2014.
  6. A. Takezawa, K. Makihara, N. Kogiso, M. Kitamura, Layout optimization methodology of piezoelectric transducers in energy-recycling semi-active vibration control systems, Journal of Sound and Vibration, 333, pp. 327-344, 2014.
  7. A. Takezawa, M. Kitamura, Phase field method to optimize dielectric devices for electromagnetic wave propagation, Journal of Computational Physics, 257A, pp. 216-240, 2014.
  8. A. Takezawa, M. Kitamura, Enhancement of non-resonant dielectric cloaks using anisotropic composites, AIP Advances, 4, 17106, 2014.


2013

  1. A. Takezawa, M. Kitamura, Sensitivity analysis and optimization of vibration modes in continuum systems, Journal of Sound and Vibration, 332, pp. 1553-1566, 2013.


2012

  1. A. Takezawa, M. Kitamura, Cross-Sectional Shape Optimization of Whispering-Gallery Ring Resonators, IEEE/OSA Journal of Lightwave Technology, 30, pp. 2776-2782, 2012.
  2. L.A.M. Mello, A. Takezawa, E.C.N. Silva, Designing piezoresistive plate-based sensors with distribution of piezoresistive material using topology optimization, Smart Materials and Structures, 21, 85029, 2012.
  3. A. Takezawa, M. Kitamura, Topology optimization of compliant circular-path mechanisms based on an aggregated linear system and singular value decomposition, International Journal for Numerical Methods in Engineering, 89, pp. 706-725, 2012.
  4. A. Takezawa, M. Kitamura, Geometrical design of thermoelectric generators based on topology optimization, International Journal for Numerical Methods in Engineering, 90, pp. 1363-1392, 2012.


2011

  1. M. Kitamura, K. Hamada, A. Takezawa, T. Uedera, Shape Optimization System of Bottom Structure of Ship Incorporating Individual Mesh Subdivision and Multi-Point Constraint, International Journal of Offshore and Polar Engineering, 21, pp. 209-215, 2011.
  2. A. Takezawa, S. Nii, M. Kitamura, N. Kogiso, Topology optimization for worst load conditions based on the eigenvalue analysis of an aggregated linear system, Computer Methods in Applied Mechanics and Engineering, 200, pp. 2268-2281, 2011.
  3. T. Yamada, K. Izui, S. Nishiwaki, M. Yoshimura, A. Takezawa, A Structural Optimization Method Incorporating Level Set Boundary Expressions Based on the Concept of the Phase Field Method, Journal of Environment and Engineering, 6, pp. 567-578, 2011.


2010

  1. T. Yamada, K. Izui, S. Nishiwaki, A. Takezawa, Topology optimization method based on the level set method incorporating a fictitious interface energy, Computer Methods in Applied Mechanics and Engineering, 199, pp. 2876-2891, 2010.
  2. A. Takezawa, S. Nishiwaki, M. Kitamura, Shape and topology optimization based on the phase field method and sensitivity analysis, Journal of Computational Physics, 229, pp. 2697-2718, 2010.
  3. A. Takezawa, S. Nishiwaki, M. Kitamura, E.C.N. Silva, Topology optimization for designing strain-gauge load cells: Structural and Multi-disciplinary Optimization, Structural and Multi-disciplinary Optimization, 42, pp. 387-402, 2010.


2009

  1. K.V. Karottu, K. Hamada, A. Takezawa, M. Kitamura, Optimization of Block Division Using Nodal Cut Set Method, Ship Technology Research, 56, pp. 142-153, 2009.
  2. K. Hamada, A. Takezawa, M. Kitamura, K. Kanaikari, A Multi-step Design Optimization Method for Mid-ship Section, Ship Technology Research, 56, pp. 110-120, 2009.


2007

  1. A. Takezawa, S. Nishiwaki, K. Izui, M. Yoshimura, Structural optimization based on topology optimization techniques using frame elements considering cross-sectional properties, Structural and Multi-disciplinary Optimization, 34, pp. 41-60, 2007.


2006

  1. A. Takezawa, S. Nishiwaki, K. Izui, M. Yoshimura, Structural Optimization Using Function-Oriented Elements to Support Conceptual Designs, ASME Journal of Mechanical Design, 128, pp. 689-700, 2006.


2005

  1. A. Takezawa, S. Nishiwaki, K. Izui, M. Yoshimura, H. Nishigaki, Y. Tsurumi, Concurrent design and evaluation based on structural optimization using structural and function-oriented elements at the conceptual design phase, Concurrent Engineering: Research and Applications, 13, pp. 29-42, 2005.