Interview with Greta Lindwall, new member of LIGHTer Academy
The LIGHTer Academy network welcomed three additional scientists to the network during the fall of 2018. Greta Lindwall, KTH, is one of the new members. Greta works at the Material Science Department at KTH with thermodynamic calculations and kinetics.
What made you apply for membership in the LIGHTer Academy network?
- It was a colleague who informed me about the call for application. I did not know about LIGHTer Academy since I have not been active within the LIGHTer network before. The vision of the network really appealed to me, and I also thought that my research profile fitted into two of the profiles that they searched for, so I decided to apply.
How can your competence contribute to LIGHTer Academy's multidisciplinary scope?
- My background is in thermodynamic calculations and kinetics. I have mainly used calculation tools that are based on the so-called Calphad method. These calculation tools are important for ICME (integrated computational materials engineering), which involves designing materials and products by linking models for different length scales. Right now, my main focus is how these methods can be used and improved for alloy development for additive manufacturing (AM). The link between microstructure models and longer length scale models such as FEM (finite element methods) is particularly important for AM, since it is not possible to separate material from component during material development for AM. What I hope to contribute with to LIGHTer Academy is knowledge about ICME and alloy development from a microstructure modelling perspective and mainly through CALPHAD-based methods.
What three challenges would you say are the most current for academic lightweight research in a 10-year perspetive?
- Additive manufacturing (AM) has great lightweight potential, as it offers completely unique possibilities for optimizing geometry and internal structure. A challenge for AM to reach its full potential is the extremely extensive multidisciplinary efforts required, which has not been achieved yet. Our current conventional "mindset" regarding the design, manufacturing and use of products must be changed - we simply have to design for AM throughout the entire value chain. From a material development perspective, this means that we must accept that material, geometry design and process optimization cannot be separated, all must be included in the development of new materials. Therefore, it is one big challenge rather than three in my area.
What do you think is important in LIGHTer Academy?
- Its interdisciplinary composition and its long-term vision.
How can LIGHTer Academy contribute to your research?
- LIGHTer Academy's vision is fully in line with what is necessary for AM to reach its full potential. Being a part of the LIGHTer Academy and working with experts in AM, lightweight structures and mechanics is very educational and positive for me and my research. At present, the LIGHTer Academy collaboration contributes mainly to how to connect CALPHAD-based material models with methods for modelling larger length scales, such as FEM.
About LIGHTer Academy
LIGHTer Academy is a cross sectorial national network of researchers from academia, research institutes and companies. The participants have complementary competencies in materials (both metal alloys and fibre composites), design, modelling and characterization.
The academic participants in LIGHTer will have the resources to conduct their own and joint research within the LIGHTer Academy, and to build up an international network. Recently, three new people have been admitted in the LIGHTer Academy after an application process. It is Greta Lindwall from the Royal Institute of Technology (KTH) with expertise in thermodynamic calculations, Anna-Lena Ljung from Luleå University of Technology with expertise in fluid mechanics focused on manufacturing processes and Håkan Hallberg from Lund University with competence in computer-based modelling and simulation of metallic materials for additive manufacturing.