About

Yu Xia, MD, MS, is an Assistant Professor in the Division of Cardiothoracic Surgery at the University of Wisconsin School of Medicine and Public Health. He completed his MD at New York University and earned his MS from the Albert Einstein College of Medicine. His training includes residencies in General Surgery at Montefiore Medical Center and in Cardiothoracic Surgery at Ronald Reagan UCLA Medical Center, where he also completed a fellowship in Thoracic Transplantation and Mechanical Circulatory Support. His research and clinical interests focus on advanced thoracic surgical procedures, including heart and lung transplantation, mechanical circulatory support, and complex vascular surgeries. Dr. Xia has contributed to the field through publications on topics such as the use of Impella devices as bridges to transplantation, post-transplant stroke, and innovative surgical techniques for vascular and cardiac conditions.

Research topics

• Materials science
• Metallurgy
• Composite material
• Engineering
• Structural engineering

Selected publications

• Fatigue Performance and Service Life Prediction of Asphalt Mastic Containing Recycled Concrete Powder

  International Journal of Pavement Research and Technology · 2026-05-07

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  PublisherDOI

• Performance evaluation and classification system of recycled concrete aggregates

  Construction and Building Materials · 2025-07-04 · 10 citations

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  PublisherDOI

• Effects of Specimen Size and Hot Isostatic Pressing on High-Cycle and Very-High-Cycle Fatigue of Additively Manufactured Ti6al4v

  SSRN Electronic Journal · 2025-01-01

  preprintOpen access1st authorCorresponding
  PublisherDOI

• Effects of specimen size and hot isostatic pressing on high-cycle and very-high-cycle fatigue of additively manufactured Ti6Al4V

  Journal of Materials Research and Technology · 2025-08-08 · 5 citations

  articleOpen access1st author

  This study investigates the effects of specimen size and hot isostatic pressing (HIP) on the high-cycle fatigue (HCF) and very-high-cycle fatigue (VHCF) performance of additively manufactured (AMed) Ti6Al4V. Three groups of specimens were designed and fabricated. Two of them had control volumes of 50 mm 3 and 8294 mm 3 , respectively, and the third group consisted of 50 mm 3 subjected to HIP treatment. The results indicate that fatigue performance demonstrates a notable size effect as the control volume increases, with smaller specimens exhibiting higher fatigue strength. However, this size effect gradually diminishes with increasing failure cycles. For the HIP-treated specimens, crack initiation is no longer dominated by void defects but occurs due to α-phase grain cleavage. For the two groups without HIP treatment, a statistical analysis of crack initiation defects reveals that, in both HCF and VHCF states, the fatigue cracks in larger specimens always originate from internal defects. The average defect sizes are 109 μm for large sized specimen group and 54 μm for small sized specimen group. By using the probabilistic control volume model, the fatigue strength of large specimens was predicted based on the fatigue data of small specimens, and the prediction was consistent with the experimental data.

  PublisherDOI

• A new additive manufacturing factor dominating porosity and mechanical performance of alloys via laser powder bed fusion

  Theoretical and Applied Fracture Mechanics · 2025-10-13 · 1 citations

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  PublisherDOI

• Flexural strength of advanced high strength steel lipped channels

  Thin-Walled Structures · 2025-10-17 · 1 citations

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  PublisherDOI

• Performance grading and mechanistic design method of base course incorporating RCP and RCA stabilized with asphalt

  Construction and Building Materials · 2025-12-17

  articleOpen access

  With the rapid growth of construction and demolition waste (C&DW), its resource utilization has become an important research direction in road engineering. Although the application potential of recycled concrete aggregate (RCA) and recycled concrete powder (RCP) in road base courses has gained attention, the synergistic use of RCA and RCP in asphalt-stabilized base courses still lacks systematic performance evaluation methods and corresponding design theory. Furthermore, the absence of a scientific classification system tailored to different road grades results in insufficient guidance for material selection in engineering practice. To address these issues, this study first established a three-tier classification system for recycled mixtures based on performance grade (PG) through multi-scale testing and principal component analysis. Subsequently, leveraging KENLAYER mechanical simulations, a corresponding performance-graded mechanistic design (PGMD) method was proposed. Results indicate that RCP as a filler significantly enhances the high-temperature performance and deformation resistance of the mastic. The RCP75 mastic demonstrated lower temperature and frequency sensitivity, along with a broader applicable temperature range. The RCA60 mixture exhibited optimal performance in high-temperature stability and moisture stability, with improvements of 91.8 % and 6.9 % respectively, achieving a PG value of 0.878 and a Grade I rating, meeting the technical requirements for high-grade highway base courses. Based on these findings, a thickness design equation and nomogram for the base course were developed using PG and the number of axle load repetitions (N e ) as variables, balancing structural reliability and material economy. This study provides theoretical support and design methods for the standardized and high-value application of construction solid waste in high-standard road base courses. • Synergistic use of RCP filler and RCA aggregate in asphalt-stabilized base. • A performance grading (PG) system for RCP/RCA recycled base courses. • Performance Grade-based Mechanistic Design (PGMD) for RCP-RCA base. • Integrated design system from RCP-RCA materials to recycled base structure.

  PublisherDOI

• Integrating Self-Centering Negative-Stiffness Viscous Damper for Resilient Seismic Protection in Steel Frames: A Performance-Based Seismic Design Method

  SSRN Electronic Journal · 2025-01-01

  preprintOpen access1st authorCorresponding
  PublisherDOI

• Characterization and performance evaluation of asphalt mastics modified with recycled concrete powder

  Construction and Building Materials · 2025-04-01 · 3 citations

  article
  PublisherDOI

• Characterization and Performance Evaluation of Asphalt Mastics Modified with Recycled Concrete Powder

  SSRN Electronic Journal · 2024-01-01 · 1 citations

  preprintOpen access
  PublisherDOI

Frequent coauthors

• Hannah B. Blum

  16 shared

• Thomas Gernay

  Johns Hopkins University

  7 shared

• Benjamin W. Schafer

  Johns Hopkins University

  6 shared

• Zhanjie Li

  Tianjin University of Technology and Education

  6 shared

• Yan Xia

  Shandong Academy of Sciences

  5 shared

• Zongwu Chen

  China University of Geosciences

  5 shared

• Yo Tomota

  Japan Atomic Energy Agency

  5 shared

• J. Nakano

  Japan Atomic Energy Agency

  4 shared

Education

• M.D., Medicine

  University of Wisconsin School of Medicine and Public Health

  2012

• B.S., Biology

  University of Wisconsin-Madison

  2008