numerical modelling

Details:

Full description: See attached file
Laboratory: Laboratoire de Tribologie et Dynamique des Systèmes (LTDS), Ecole Nationale des Travaux Publics de l'Etat (ENTPE), Géo-matériaux et Constructions Durables (GCD).
Location: Lyon, France
Period: 3-year scholarship application
Contact: see attached document

Project description:

Experimental and Numerical Study on Fretting Fatigue Behaviour of Additively Manufactured Metal Parts

We in Aalto Univeristy (Finland), Department of Mechanical Engineering, look for a post doc to join our group for a study on the breakage and fragmentation of ice blocks under compressive loads. The fragmentation process is complicated and requires the use of novel experiments and numerical models, and in this research, you will be working on both. The unique experiments on this topic will be performed in the cold room of the department.  Numerical modelling will be done on a variety of scales.

In the last two decades, considerable observational and theoretical work has been devoted toall aspects of earthquake prediction research, for solving fundamental questions concerningthe mechanics of fault systems, as well as for answering questions regarding earthquakehazard.The european natural observatory of the Corinth Rift (http://crlab.eu), a very rapidlydeforming area (opening strain rate of ~10-6/yr) where one or more earthquakes withmagnitudes above 6 are expected in the coming decades provides a framework in which themechanics of faults can be studied

Hello Everyone

I am trying to simulate material dumping process from shovel onto mining dump truck. And for that i am using Abaqus/Explicit.  When i plot the contact force of material falling onto truck body under gravity, it gives me the maximum value of 0.12e+11, where as a simple theoretical analysis shows that the resulting impact force for 100 tons of material falling under gravity should be 9e5 N. I am not been able to understand the reason that why Abaqus /Explicit is exaggerating the impact/contact force so much. And i dont know how to correct this thing.