Results 61 to 70 of about 333,273 (342)

Improved Efficient Projection Density Function Based on Topology Optimization

Journal of Mathematics, 2021
Topology optimization is a powerful tool having capability of generating new solution to engineering design problems, while these designs enhance manufacturability and reduce manufacturing costs in a computational setting.
Nouman Saeed, Kai Long, Jamshed Ahmed Ansari, Nasif Raza Jaffri, Usama Abrar   +4 more
doaj   +1 more source

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
Primary phases and a fatigue crack are studied in a forged blank of an aluminum alloy using synchrotron and laboratory X‐ray computed tomography. To image the crack, the fatigue test is interrupted, and a static tensile load is applied to open the crack.
Jakob Schröder, Ying Han, Tobias Fritsch, Bardia Hejazi, Alexander Ulbricht, Birgit Skrotzki, Giovanni Bruno   +6 more
wiley   +1 more source

Topology and shape optimization of induced-charge electro-osmotic micropumps [PDF]

, 2009
For a dielectric solid surrounded by an electrolyte and positioned inside an externally biased parallel-plate capacitor, we study numerically how the resulting induced-charge electro-osmotic (ICEO) flow depends on the topology and shape of the dielectric
, , Bendsøe M P, F Okkels, Gregersen M M, H Bruus, Kilic M S, M M Gregersen, M Z Bazant, Nelder J A   +9 more
core   +2 more sources

Evolutionary approach for spatial architecture layout design enhanced by an agent-based topology finding system

Frontiers of Architectural Research, 2017
This paper presents a method for the automatic generation of a spatial architectural layout from a user-specified architectural program. The proposed approach binds a multi-agent topology finding system and an evolutionary optimization process.
Zifeng Guo, Biao Li
doaj   +1 more source

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

Topology optimization of freeform large-area metasurfaces

, 2019
We demonstrate optimization of optical metasurfaces over $10^5$--$10^6$ degrees of freedom in two and three dimensions, 100--1000+ wavelengths ($\lambda$) in diameter, with 100+ parameters per $\lambda^2$. In particular, we show how topology optimization,
Johnson, Steven G., Lin, Zin, Liu, Victor, Pestourie, Raphaël   +3 more
core   +1 more source

Topology optimization analysis of VLCC transverse web based on UNet deep learning

Zhongguo Jianchuan Yanjiu
ObjectiveThis paper proposes a hull transverse web topology optimization method based on UNet for application in the optimization design of complex ship structures.
Zhenrong LI, Lijuan XIA, Shuo FENG
doaj   +1 more source

TOPOLOGY OPTIMIZATION METHOD BASED ON SIMP-MMC FOR STRUCTURE SIZE PRECISE CONTROL

Jixie qiangdu, 2022
With the development of structural topology optimization methods, some scholars had proposed strategies to integrate existing topology optimization methods to improve the manufacturability of topology optimization result.
ZHANG JunFeng, LIAO JingYu, LIU EnHai
doaj  

The Effect of Thickness, Build Orientation, and Loading Rate on the Tensile and Compressive Properties of Selective Laser Sintering Polyamide 12 Specimens

Advanced Engineering Materials, EarlyView.
This article examines how build orientation, thickness, and loading rate affect the tensile and compressive properties of LS‐manufactured polyamide 12 12 parts. Through over 120 experiments, it reveals strong ductility anisotropy in tension, minimal compressive sensitivity, and significant thickness and strain rate dependencies.
Andreas Psarros, Grigorios Paraskevopoulos, Georgios Savaidis   +2 more
wiley   +1 more source

Applications of automatic differentiation in topology optimization [PDF]

, 2017
The goal of this article is to demonstrate the applicability and to discuss the advantages and disadvantages of automatic differentiation in topology optimization.
Gauger, Nicolas R., Lazarov, Boyan Stefanov, Nørgaard, Sebastian A., Sagebaum, Max   +3 more
core   +1 more source