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content/_index.md

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- block: collection
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id: papers
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content:
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title: Featured Publications
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title: 代表性论文
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filters:
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folders:
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- publications

content/grants.md

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title: 科研项目
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username: admin
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text: |-
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1. 2024年度博士后创新人才支持计划,项目负责人,浙大土木学科首位入选者,No. BX20240320
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1. 2024年度博士后创新人才支持计划,项目负责人,浙大土木学科首位入选者,No. BX20240320
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2. 国家重点研发计划青年科学家项目,任务负责人,No. 2024YFB3715100
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columns: '1'
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@article{Hao2025,
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author = {Hao, Yanxin and Yin, Xing and Li, Qinghua and Quan, Guan and Xu, Shilang},
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doi = {10.1016/j.ijimpeng.2025.105309},
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issn = {0734743X},
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journal = {International Journal of Impact Engineering},
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month = {mar},
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pages = {105309},
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title = {{Dynamic direct tensile behaviour of high-strength strain-hardening fibre-reinforced cementitious composites: Rate dependence, inertial effect, and ductile-brittle transition}},
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url = {https://linkinghub.elsevier.com/retrieve/pii/S0734743X25000909},
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volume = {202},
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year = {2025}
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}
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---
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title: "Dynamic direct tensile behaviour of high-strength strain-hardening fibre-reinforced cementitious composites: Rate dependence, inertial effect, and ductile-brittle transition"
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authors:
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- Yanxin Hao
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- yinxing
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- Qinghua Li*
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- Guan Quan
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- Shilang Xu
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author_notes:
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- "Equal contribution"
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- "Equal contribution"
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date: "2024-10-01T00:00:00Z"
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# Publication type.
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# Accepts a single type but formatted as a YAML list (for Hugo requirements).
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# Enter a publication type from the CSL standard.
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publication_types: ["article-journal"]
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# Publication name and optional abbreviated publication name.
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publication: "***International Journal of Impact Engineering***, 202, 105309"
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abstract: High-strength ultra-high toughness cementitious composites (HS-UHTCC), with compressive strength of 167 MPa and tensile strain capacity of 4.6 %, shows significant promise in resisting dynamic loading. This study conducted direct tensile tests across eight strain rates (ranging from 0.00004 /s to 58 /s) for HS-UHTCC, comprehensively covering quasi-static, seismic, and impact loadings. This study provides a detailed analysis of stress equilibrium, inertial effects and machine ringing, which are often overlooked in dynamic studies. Numerical analysis was employed to isolate the pure strain rate effect of the tensile strength. Additionally, scanning electron microscopy (SEM) analysis was used to analyse the transitions in fibre failure modes. The results demonstrate that the mechanical properties of HS-UHTCC exhibit a strong strain rate dependence. Both the initial cracking strength and ultimate tensile strength increase with strain rate, whereas the tensile strain capacity decreases. However, even at a high strain rate of 40 /s, the material retains a tensile strain capacity of 1 %, and its strain energy density remains unaffected by strain rate. The presence of inertia effects significantly influences the apparent tensile strength, and a generalized tensile constitutive relation is proposed for strain capacity prediction at various strain rates. Fibre failure modes change with varying strain rates, marking one of the sources of the material's strain rate dependence. This study is expected to advance the application of HS-UHTCC in seismic and protective engineering.
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tags:
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- Mechanical Behaviour
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- SH-UHPFRC
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featured: false
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links:
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# - type: pdf
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# url: http://arxiv.org/pdf/1512.04133v1
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# - type: code
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# url: https://github.com/HugoBlox/hugo-blox-builder
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# - type: dataset
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# url: ""
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# - type: poster
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# url: ""
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# - type: project
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# url: ""
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# - type: slides
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# url: https://www.slideshare.net/
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- type: doi
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url: "https://doi.org/10.1016/j.ijimpeng.2025.105309"
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# - type: video
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# url: ""
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# Featured image
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# To use, add an image named `featured.jpg/png` to your page's folder.
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image:
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placement: 2
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focal_point: "Top"
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preview_only: false
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# Associated Projects (optional).
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# Associate this publication with one or more of your projects.
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# Simply enter your project's folder or file name without extension.
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# E.g. `internal-project` references `content/project/internal-project/index.md`.
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# Otherwise, set `projects: []`.
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projects: []
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# Slides (optional).
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# Associate this publication with Markdown slides.
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# Simply enter your slide deck's filename without extension.
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# E.g. `slides: "example"` references `content/slides/example/index.md`.
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# Otherwise, set `slides: ""`.
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slides: ""
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---

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