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英国利兹大学全奖留学机会----复合材料3D打印方向
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按往年来算，公派要提交材料了，也是几家欢喜机家愁。但上帝为你关上一扇门的同时又会为你打开一扇窗。 现利兹大学土木工程学院招一名博士，方向为复合材料的3D打印方向。 要求： 1. 相关专业学院排名 top 10% 2. 雅思总分>=6, 单科>=5.5 3. 需要会专业相关软件及有相关编程经验，比如C++/GPU programming/FEM/DEM/SPH modelling 4. 有发表过高水平论文的优先考虑 导师的相关信息如下： Dr Dongmin Yang (D.Yang@leeds.ac.uk) Web: https://engineering.leeds.ac.uk/staff/475/dongmin_yang 有意向的可与导师直接联系或与我联系（cnlw@leeds.ac.uk） Research project title: 3D printing of fibre reinforced polymer composites Research institutes: 1) School of Civil Engineering, University of Leeds; 2) School of Design, University of Leeds. Project description: 3D printing of FRP composites is being under considerable research recently, but very few developed technologies being commercialized due to the existing limitations. There are still a lot of problems to solve in order to refine the printing processes and the printed FRP composite parts/products are severely constrained by little understanding of the technology from materials, to manufacturing process and to structures. Most 3D printing processes are also time-consuming and it is difficult to print large scale composite parts/products. New printing technologies that is scalable and fast should be developed in order to become adopted by the industry. The development of such new technologies rely on the integrated consideration of the properties of the printable materials (i.e. fibre and polymer), structural performance of the printed parts as well as the robustness and efficiency of the printing system. One of the main challenges is that the printed composites usually have lower mechanical strength than the composites manufactured by conventional moulding technologies, which in some cases may not meet their functional requirements. This is mainly due to the voids introduced in the composites during the printing and the addition of fibre (carbon or glass) could further increase the porosity due to defects in the fibre/matrix interfacial bonding. This project aims to use a particle methods based approach (a 2D integrated SPH-DEM approach has already been developed and needs to be extended to 3D) to model and optimize the 3D printing processes of FRP composites so as to reduce voids and improve fibre/matrix interfacial properties. Experimental testing, plasma treatment of fibres, and characterization of fibre, polymer and fibre/matrix interface will be carried out with results fed into the computational model. Existing printing processes (such as fused deposition method and direct write technique) will be modelled and optimal printing processes will be proposed. Based on the modelling and optimization, the project also has the potential to develop a new and innovative printing technique that can mitigate the limitations faced by the existing printing techniques, and on such occasion a small lab based printing device/prototype for composites will be developed. Main contact/supervisor: Dr Dongmin Yang (D.Yang@leeds.ac.uk) Web: https://engineering.leeds.ac.uk/staff/475/dongmin_yang Required technical skills/experience that potential applicants should have: Minimum academic requirement is 2:1 MEng or BSc (honours) undergraduate degree, or MSc with distinction in a relevant engineering or science degree, such as (but not limited to) Structural Engineering, Materials Engineering, Mechanical Engineering, Computing, Mechanics or Mathematics. Applicants should have experience of computational or mathematic modelling. Skills of C++/GPU programming/FEM/DEM/SPH modelling are desirable. Successful experience of publishing high-quality research papers is also highly desirable. |
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