Lei Xu

Optimizing aggregate content and size distribution in low-carbon 3D-printed concrete via DEM simulation

Weijiu Cui, Ji‐Feng Shi, Xinyue Zhang, Changming Su et autres

To mitigate the reduced extrudability typically associated with low-carbon concrete formulations of 3D-printed concrete, this study focuses on optimizing aggregate content and size distribution through discrete element method (DEM) simulations. A two-phase soft shell-hard core model was adopted to simulate the extrusion …

cn, ch (code pays fourni par la source)

The interaction mechanism of dam-reservoir-foundation during impoundment: Case study of the Xiluodu Project, China

Linfei Zhang, X. Li, Lei Xu, Qingwen Ren

cn (code pays fourni par la source)

Research on the inspection technology of type IV high-pressure hydrogen storage cylinder based on finite element simulation

Changyun Li, Lei Xu, Wei Ye, Bihua Ou et autres

Through the finite element simulation method, a complete performance evaluation technology system for type IV composite high-pressure vessels is constructed. Simulations of hydrostatic testing reveal notable stress concentration in the head transition region and micro-slip behavior at the nozzle connection interface. Modal …

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Analysis of influencing factors on multi-source data acquisition and tensile performance prediction for spherical indentation tests (SITs)

Tairui Zhang, Weiwei Zheng, Xiandong Shang, Yide Li et autres

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Analysis of the Longitudinal Mechanical Response and Morphological Evolution of Cells Based on the Multi-Scale Coupling of Finite Element and Atomic Force Microscopy

Yi Zeng, Lei Xu, D. Tong, Jingyao Li et autres

This study proposes a multi-scale coupling method integrating finite element analysis (FEA) and atomic force microscopy (AFM) to deeply explore the mechanical response and morphological dynamic evolution laws of cells under longitudinal mechanical loads. By constructing a three-dimensional finite element model that …

cn (code pays fourni par la source)

Neural Networks and NLP for Medical Imaging Report Generation: A Synergistic Approach

Zhenhao Li, Weihang Yuan, Lei Xu, Ting-Ting Zhang et autres

This paper addresses the challenge of automatic medical imaging report generation and proposes an advanced technical solution leveraging deep neural networks and natural language processing (NLP). The study designs a multi-stream convolutional neural network (CNN) to extract imaging features and constructs an …

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Effect of Nickel-Coated Hollow Glass Microspheres on the Microstructure and Mechanical Properties of Mg-Al Matrix Composite Foams

Shaoxiang Sun, Lin Jiang, Ling Tang, Qi Gao et autres

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Application of Machine Learning in the Study of Nickel-Coated Hollow Microsphere/Magnesium-Aluminum Matrix Composite Foam Material Properties

Changyun Li, Shaoxiang Sun, Lin Jiang, Qi Gao et autres

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Mesoscopic crack pattern fractal dimension-based concrete damage identification

Yajuan Yin, Qingwen Ren, Jikai Zhou, Lei Xu et autres

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Adaptive hierarchical multiscale modeling for concrete trans-scale damage evolution

Lei Xu, Lei Jiang, Lei Shen, Lei Gan et autres

cn (code pays fourni par la source)

An efficient approach for mesoscale fracture modeling of fully-graded hydraulic concrete

Lei Xu, Lei Jiang, Yefei Huang, Qingwen Ren

Large coarse aggregates used in fully-graded hydraulic concrete necessitate large specimens for numerical modeling. This leads to a high computational cost for mesoscale modeling and thus slows the development of multiscale modeling of hydraulic mass concrete structures. To overcome this obstacle, an …

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3D mesostructure generation of fully-graded concrete based on hierarchical point cloud and aggregate coarsening

Lei Xu, Lei Jiang, Lei Shen, Yijia Dong et autres

cn (code pays fourni par la source)