Results 41 to 50 of about 204,780 (167)

Distortion Prediction in Selective Laser Melting: Methodology for Inherent Strain Determination

Fraunhofer Direct Digital Manufacturing Conference DDMC 2018, 2018
One of the process variants in metal additive manufacturing (AM) is the Selective Laser Melting (SLM) where parts are built on a layer by layer basis. A focused power source is applied (laser or electron beam) to the powder material which is rapidly heated above its melting temperature and then allowed to solidify and cool down to form a new solid ...
Setien, Iñaki, Sebastian, Maria San, Echeverría, Alberto   +2 more
openaire   +1 more source

Photo-induced copper-catalyzed sequential 1,n-HAT enabling the formation of cyclobutanols

Nature Communications, 2021
Cyclobutanols are difficult structures to access given their inherent ring strain. Here, the authors present a method to form substituted cyclobutanols from a photocatalytic cascade reaction, proceeding via a 1,5- or 1,6-hydrogen atom transfer and ...
Zhusong Cao, Jianye Li, Guozhu Zhang
doaj   +1 more source

Determination of Inherent Strain Regions to Estimate Plate Deformation by Line Heating [PDF]

Journal of the Society of Naval Architects of Korea, 2002
The inherent strain method is known to be very effective in predicting the plate deformation by line heating. Traditionally the inherent strain regions have been determined from the temperature distribution and the phase transformation regions(Ac3) of welding experiments.
Chang-Doo Jang, Yun-Sok Yun, Dae-Eun Ko, Sung-Choon Moon   +3 more
openaire   +1 more source

Precision simulation and rapid prediction of complex parts formed by laser powder bed fusion based on multi-scale inherent strain method

Virtual and Physical Prototyping
Laser Powder Bed Fusion (LPBF) achieves layer-by-layer manufacturing of metal parts by melting metal powder using a high-energy laser beam. In response to the low accuracy and efficiency of the traditional inherent strain method in predicting residual ...
Peng Dai, Bo Qian, Man Zhao, Hao Zhou, Qingsong Wei, Zhongliang Lu, Steven Y. Liang   +6 more
doaj   +1 more source

Computational Modeling for Surgical Reconstruction of Aortic Valve by Using Autologous Pericardium

IEEE Access, 2020
The objective of this study was to evaluate the clinical effectiveness of surgical reconstruction of aortic valve using autologous pericardium, and the hemodynamic impact of matching the circumferential direction of the trimmed leaflet to inherent fiber ...
Yong Feng, Yuqi Cao, Wenshuo Wang, Huifeng Zhang, Lai Wei, Bing Jia, Shengzhang Wang   +6 more
doaj   +1 more source

Mechanism clarification and mitigation measures of radial deformation induced by girth welding of thin-walled pipes

Journal of Materials Research and Technology
Girth welding is extensively utilized in connecting pipeline structures. Excessive welding deformation may result in a decrease in ultimate bearing capacity and fatigue life.
Ze Chen, Yong Liu, Ping Wang, Hongliang Qian, Ninshu Ma   +4 more
doaj   +1 more source

Single Targeted Exon Mutation Creates a True Congenic Mouse for Competitive Hematopoietic Stem Cell Transplantation: The C57BL/6-CD45.1STEM Mouse

Stem Cell Reports, 2016
Summary: Defining the molecular regulators of hematopoietic stem and progenitor cells (HSPCs) requires in vivo functional analyses. Competitive bone marrow transplants (BMTs) compare control and test HSPCs to demonstrate the functional role of a genetic ...
Francois E. Mercier, David B. Sykes, David T. Scadden   +2 more
doaj   +1 more source

Strain-relaxation and critical thickness of epitaxial La1.85Sr0.15CuO4 films

APL Materials, 2015
We report the thickness-dependent strain-relaxation behavior and the associated impacts upon the superconductivity in epitaxial La1.85Sr0.15CuO4 films grown on different substrates, which provide a range of strain.
T. L. Meyer, L. Jiang, S. Park, T. Egami, H. N. Lee   +4 more
doaj   +1 more source

Prediction of Welding Deformation and Residual Stress Elastic FEM Based on Inherent Strain

Journal of the Society of Naval Architects of Japan, 1996
The welding residual stress and the distortion are considered to be produced by the inherent strain. The plastic strain in a bead welding computed through the thermal-elastic-plastic analysis is an ideal example of the inherent strain, since there is no glove which may introduce additional mismatch.
Hidekazu Murakawa, Yu Luo, Yukio Ueda
openaire   +4 more sources

Estimating and Measuring Methods of Residual Stresses Using Inherent Strain Distribution Described as Functions(Report 1). Expression of Inherent strain in Form of Function and Its Estimation.

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 1993
When three dimensional welding residual stresses are measured based on inherent strains using Finite Element Method, too many inherent strain components in elements have to be specified to express their distribution. If these are determined experimentally, measurements of elastic strains must be made for points more than the inherent strain components.
Yukio Ueda, Ning Xu Ma
openaire   +2 more sources