英国伦敦大学学院（UCL）机械学院用于抗断裂结构设计的超材料研究项目现有博士职位可申请，与全球制造业和先进表征研究中心的紧密联系，提供奖学金，预计2023年秋季入学。
About the project
Project: Metamaterials for fracture-resistant structural design
The engineering of innovative lightweight materials is increasingly being guided by nature-inspired principles of using less material more efficiently. The objective of reducing material mass without compromising structural integrity poses new and unique sets of challenges; in particular, for applications in harsh environments and/or under extreme load cases. Micro-architectured lattices is an important class of material often used in light-weighting applications. These materials can be manufactured as ordered trusses, such as those seen in bridges at a structural-scale, or with a less ordered structure, e.g. sponges, foams etc. Manufacturing of ordered microlattices has lately become increasingly widespread through the advent of additive manufacturing techniques.
The focus of this project is to develop advanced lattice materials, or metamaterials, with high fracture toughness by design and optimisation in three length scales: microstructural (material properties), mesostructural (morphology of periodic structure), and macrostructural (component-scale). On the experimental side, it will involve the use of: (1) additive manufacturing techniques to fabricate lattices with controlled micro/mesostructured, and (2) materials and structural testing techniques. This work will be complemented by analytical modelling and numerical simulations (mainly, finite element method). The aim is to elucidate the interaction between damage mechanisms that occur at multiple length scales, and develop guides for fracture-resistance designs with this class of materials.
This project will also benefit from strong links with manufacturing and advanced characterization research centers worldwide.
Closing Date and Start Date:
All enquiries must be received by 9th Dec 2022 (closing date). If successful, the start date of the PhD will be in Sept/Oct 2023.
Value of award:
Full tuition fees and stipends (living expenses) for the duration of the doctoral research.
Person specification
A background in Mechanical/Structural/Materials Engineering, or an equivalent discipline with a high technical content, of any nationality. Aptitude for computational modelling and/or experimental work is essential. Applicants should be from a top-ranked university and are expected to graduate at the top of their cohort. A research track record, demonstrated by publications in international journals, will greatly enhance the chances of success.
Application procedure
Applicants should write to Prof PJ Tan (pj.tan@ucl.ac.uk) with a recent CV, area of interests and a full transcript of exam results. Individuals who have yet to graduate must list all the modules (and corresponding grades) for which the results are known. Qualified candidates will go through an interview, followed by a preliminary round of departmental pre-selection; and, if successful, will be entered for university-level competition for the scholarships.
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