PhD Position on Impact Analysis of Composite Structures

Werkenbijnlr; Netherlands; Hybrid; EUR 42,000 - 60,000; Full time

Benefits offered by this job

45 days off

8% end-of-year bonus

Healthcare costs covered

Extra paid parental leave

Work from home where possible

Job summary

The Netherlands Aerospace Centre (NLR) invites a highly motivated PhD candidate to join the Computational Mechanics team for a 4-year research track. You will develop and compare high-fidelity computational methods for dynamic, high-velocity impacts on advanced composite structures.

The position is based in Marknesse with a Delft presence and home days, supporting a collaboration with Delft University of Technology.

Qualifications

• Master’s degree in Aerospace Engineering, Mechanical Engineering, or Civil Engineering with a focus on computational mechanics.
• Experience with Finite Element Modelling (FEM), aerospace structures, and damage mechanics.
• Excellent communication skills in spoken and written English.
• Able to balance broad research scope and real-world application.

Responsibilities

• Research the available computational methods and open-source software for simulating high-velocity impacts.
• Implement and further develop the most promising method, including material models.
• Develop computationally efficient surrogate models and integrate into a design optimisation framework.
• Collaborate with NLR colleagues in Marknesse and with Delft University of Technology supervisors.
• Contribute to the comprehensive literature review and dissemination of results.

Skills

FEM experience

Damage mechanics

Aerospace structures

English communication

Education

Master's degree in Aerospace Engineering

Job description

Background

The Netherlands Aerospace Centre (NLR) is a leading institute for aerospace research and development in the Netherlands. Our organization is involved in various national and international projects, focusing on innovative technologies and materials for the aerospace industry. As part of our research efforts for the Ministry of Defense, we aim to develop methods to analyse advanced composite structures. The main focus is on implementing high-fidelity computational methods for reliable analysis of high-velocity impact events, with the goal of transforming these into computationally efficient, robust tools suitable for rapid design iteration, optimization, and certification of these advanced composite structures. Within this project, we are seeking a highly motivated PhD candidate to join our Computational Mechanics team.

Project description

The candidate will research the available computational methods and (open-source) software suitable for simulating high-velocity impact events. The method should be capable to predict all the relevant damage mechanisms observed in experimental testing that will be performed by the candidate in the first phase of the project. This includes investigating methods such as finite element analysis, mesh-free methods, and smoothed particle hydrodynamics, among others, to determine their suitability for capturing complex damage phenomena like delamination, fiber breakage, and matrix cracking. The first phase of the project is concluded with a comprehensive literature review that summarizes the state-of-the-art in computational modelling of high-velocity impacts on composite structures, highlighting the strengths and limitations of existing approaches. After a selection of the most promising method, the candidate should implement and further develop it, which may involve modifying existing algorithms and developing new material models.

The last phase of the project aims to develop computationally efficient tools for the design and optimisation of large-scale advanced composite structures. It involves translating the high-fidelity models into fast-running surrogate models using novel techniques within the field of machine learning and model order reduction. The surrogate models will be integrated into a design optimisation framework to enable automatic generation of optimal material architectures and layups for specific impact scenarios. The ultimate goal is to provide industry-applicable tools and design guidelines for certification of impact protection systems for advanced composite structures.

Your profile

• Master’s degree in Aerospace Engineering, Mechanical Engineering, or Civil Engineering with a focus on computational mechanics

• Experience with Finite Element Modelling (FEM), aerospace structures, and damage mechanics
• Excellent communication skills in spoken and written English
• Able to balance broad research scope and real-world application

What do we offer?

The candidate will receive a 4-year research contract from NLR and will be enrolled in the Doctoral Education programme of Delft Technical University. During this time, the candidate will work closely together with NLR colleagues in Marknesse within the Computational Mechanics department, and with supervisors from Delft Technical University. You will work ideally; 3 days in Marknesse, 1 day in Delft and 1 day from home.

In addition we offer:

• No fewer than 45 days off (with full-time employment);

• A fixed end-of-year bonus of 8%;
• A contribution towards your healthcare costs;
• Extra paid parental leave;
• The possibility to work from home where possible

Your new work environment?

Royal NLR has been a knowledge organization with the will and ambition to innovate for over 100 years. Based on that motivation, we make the world of aviation and space travel safer, more sustainable, more efficient and effective and stand for groundbreaking innovations. We employ more than 1000 passionate professionals, from aircraft engineers to psychologists and from mathematicians to application experts.