Thermo-mechanical Engineer

**Join us and be a pioneer for a green transport revolution.**
**Automotive Cells Company (ACC) is one of Europe’s newest and most exciting high-tech companies. Backed by Saft-Total, Stellantis-Opel and Mercedes-Benz,** ACC is set to **power the future of the automotive industry** by innovating in battery technology.

We aim to produce sustainable, affordable, high-capacity, longer-life batteries as a** cleaner alternative to current energy sources**. We have created an R&D center and new state-of-the art facility in France (New Aquitaine), and we are building gigafactories in Hauts de France, Germany and Italy.

We need a range of **skilled and agile people** to bring our vision to life, especially in the areas of industrialization, mechanical design, testing/prototyping and any other function of a new-born company. If you’re looking to take your career further than you imagined, if you’re passionate about creating cleaner transport, we’d like to hear from you.

**Accelerating sustainable mobility for all.**

**Job description**:
The Thermo-Mechanical Test&Simulation Engineer is responsible of these tasks:

- Characterizing the thermal and mechanical behavior of materials, structures, sub-structures, and assemblies integrated in modules
- Providing the information about materials and structures in order to feed thermal and mechanical models developed within the Simulation Department
- Contributing to the set-up and follow-up of outsourced tests by seeking suitable partners and designing set-ups for internal needs.
- Ensuring reporting, deliverables drafting, methodology consolidation with due quality, communication within and outside ACC

You will use CAD/CAE tools (for example, Hyperworks), Finite Element solvers (for example, Optistruct, RADIOSS or LSDyna) and solvers for thermal modeling (STAR-CCM+ or Comsol).

You will also support Solid State Batteries conception. They will manage external Research cooperation on their field of expertise. They will participate in cell and module validation activities.

The Thermo-Mechanical Test&Simulation Engineer reports to the Mechanical Simulation Manager. You may be asked to report to the Thermal Simulation Manager, Process Simulation Manager, the Engineering department manager. You will support the engineering team and design office for cells and module design. You will have cross activities with Thermal Modeling team, Mechanical Modeling team, V&V and safety team.

**Your Main Missions will be**:
MECHANICAL TESTS:

- Perform Tensile tests, bending tests, shear tests, compression tests, biaxial/punch tests
- Use standard extensometers. Being capable of using at least one of the following measurement sensors must be known and managed: Strain gages, Digital Image Correlation, Displacement sensors (LVDT)

THERMAL TESTS:

- Perform Density tests (weighing, immersion,), Specific heat capacity tests (ARC, Flash,), Thermal conductivity/resistance tests (Stationary and Transient methods)
- Install and suitably set Thermocouple (mandatory), Infrared imaging camera and Fluxmeter

DATA:

- Provide physical interpretation and analysis of tests results

SIMULATIONS:

- Perform **basic thermal simulations**: steady and unsteady analyses of Conduction, Convection, Radiation
- Perform **fully non-linear mechanical simulations (Statics and Dynamics)**: large displacements, contacts, material law and material failure (as a function of triaxiality), modelling of bonded joints, welded lines, bolted joints

CORRELATION:

- Reproduce the test at hand by simulation and correlate models vs reality to improve company experience
- Manage collaborations with suppliers, customers and strategic partners
- Contribution in the company roadmap
- Be up to date to the state of the art on its topic of expertise
- Support Intellectual Property monitoring and propose innovative patentable concepts

**Profile**:
**Know How**
- Fundamental knowledge of metals (aluminum alloys and steels) is a must, including at least the following phenomena: strain rate sensitivity, strain hardening, heat transfer (conduction, convection, radiation), density, thermal conductivity and resistance, specific heat capacity, heat transfer coefficient, temperature dependency, anisotropy
- Basic notions about plastics, porous materials, and multi-layer materials are very sought, including creep, compression effect on both mechanical and thermal properties
- CFD simulation is a plus
- Knowledge on various analytical methods commonly used in simulation
- Basic skills in any standard programming language (C++, Fortran, Matlab, Python, Java, )

**Experience**

Minimum 3 years’ experience in similar job

**Qualifications**
- MSc with 5 years of experience or PhD+2 years of experience
- Fluent in English

**Key behaviours**
- Analytical and synthetical skill
- Finite Elements modelling
- Finite Volume modelling
- Organization and time-management skills
- Customer focused
- Initiative
- Result and performance motivated
-