Post-Doctorat M/F 12 months: Modeling the Viscoelastic Behavior of Foams under Large Cyclic Compressions and Dynamic Loading
New
- Researcher in FTC
- 12 mounth
- Doctorate
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Laboratoire de Mécanique des Solides
Contract Type
Researcher in FTC
Working hHours
Full Time
Workplace
91128 PALAISEAU
Contract Duration
12 mounth
Date of Hire
01/05/2026
Remuneration
Between 3131,32 and 3569,85€ brut per months
Apply Application Deadline : 27 March 2026 23:59
Job Description
Missions
This postdoctoral project aims to the viscoelastic behavior of polymeric foams under large deformations dynamic loadings.
The objective is to simulate, using the finite element method, the response of these porous microstructures under complex loading conditions, including compression–relaxation tests and cyclic loading–unloading. A first stage will focus on analyzing the relationship between the viscoelastic properties of the base polymer and the macroscopic response of the foam, in order to identify the mechanisms governing energy dissipation and hysteresis.
These results will then support a second phase dedicated to the study of dynamic behavior, in particular during impact scenarios such as the rebound of a quasi-rigid ball on the foam. Depending on the scale considered, simulations may be performed either on explicitly modeled representative microstructures or using an equivalent homogenized material model.
The project therefore combines multi-scale modeling, large deformations, nonlinear viscoelasticity, and transient dynamics.
Activity
Generating fortran code for VUMAT for Abaqus Explicit.
Developping python codes for microstructure generation
Finite elements simulations on a cluster.
Parameter study and comparison with experimental results.
Communication of results
Your Profil
Skills
• Solid experience in finite element modeling of the mechanical behavior of materials,
• Good knowledge of large deformation mechanics (strongly appreciated),
• Background in viscoelasticity (linear and/or nonlinear) would be a significant asset,
• Interest in multi-scale approaches and dynamic simulations.
Your Work Environment
The postdoctoral researcher will be supervised by Julie DIANI and Kostas DANAS, CNRS Research Directors at the LMS (Laboratoire de Mécanique des Solides), specialists in full-field modeling of polymeric, reinforced, and porous materials, with strong expertise in large deformations and numerical homogenization.
Compensation and benefits
Compensation
Between 3131,32 and 3569,85€ brut per months
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR7649-JULDIA-002 |
|---|---|
| CN Section(s) / Research Area | Material and structural engineering, solid mechanics, biomechanics, acoustics |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
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