Technische Universität Berlin - Faculty VI - Institute of Civil Engineering / Structural Engineering and Soil Mechanics
Research Assistant - salary grade E13 TV-L Berliner Hochschulen
part-time employment may be possible
Research work, particularly in the context of the DFG (German Research Foundation) - NSFC (National Natural Science Foundation of China) project "System dynamic behavior of high-speed railway infrastructure on multilayered soils considering soil nonlinearities". Objectives of the project are the numerical simulation of models for prognosis of the dynamic behavior of high-speed infrastructures on multi-layered soils and their validation based on in-situ measurements. In this context, a complex theoretical and numerical model will be developed which will take into account the train-track-soil interaction and will be able to study the dynamic behavior of the high-speed railway infrastructure and the underlying stratified subsoil considering the non-linear behavior of the soil.
The finite element method (FEM) will be applied for the numerical simulation of the dynamic behavior of the railway infrastructure and the surrounding subsoil. In addition, material laws describing the nonlinear soil behavior under high-speed rail traffic will be implemented in the FEM. Special elements will be inserted on the edge nodes of the FEM mesh in order to absorb the outgoing waves at the artificial boundaries of the model.
Particular tasks are:
Development of numerical models and simulation of the dynamic behavior of the high-speed railway infrastructure and the underlying stratified subsoil. The following aspects of the problem should be investigated: i) non-linear material behavior of the soft soil layers under high-speed rail traffic and ii) the resonance behavior of the railway infrastructure by a train traveling with a critical speed.
Verification and validation of the computational model, particularly by using the in-situ tests carried out within the context of the project.
Documentation of the research work, presentation and publication of the research results in scientific journals and conference proceedings.
Successfully completed university degree (Master, Diplom or equivalent) in Civil Engineering, Mechanical Engineering, or related field.
Profound knowledge in the field of soil mechanics, engineering mechanics, and numerical methods for initial and boundary value problems, particularly the finite element method (FEM) is required.
The candidate must possess fluent German language skills and excellent English language skills, both written and spoken and is expected to write scientific publications in both German and English and to present the results of the research on national and international conferences.
Ideally: knowledge in the field of soil dynamics and the theory of wave propagation, constitutive theory and material modeling, nonlinear FEM and numerical methods for dynamic problems.
Ideally: programming skills in Matlab/Fortran or other languages and knowledge concerning the implementation of FEM algorithms.
How to apply:
Please send your written application with the reference number and the usual documents to Technische Universität Berlin - Der Präsident - Fakultät VI, Institut für Bauingenieurwesen, FG Grundbau und Bodenmechanik, Prof. Dr. Rackwitz, Sekr. TIB1-B7, Gustav-Meyer-Allee 25, 13355 Berlin or by e-mail to email@example.com.
To ensure equal opportunities between women and men, applications by women with the required qualifications are explicitly desired.
Qualified individuals with disabilities will be favored. The TU Berlin values the diversity of its members and is committed to the goals of equal opportunities.
Please send copies only. Original documents will not be returned.