From dyke propagation to damage

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Project objective

Research objectives and content Studies of magma propagation through fractures/dykes are based on linear ela- -sticity. The description of non-linear processes and micro-cracking along dyke walls and at the dyke tip needs to be considered. This requires model- ling the damage. Damage models are applied in geo-materials and concrete structures in Civil Engineering. Our work will be focused on three closely related issues: 1.The interactions and couplings of damage in rocks and geo-materials, with flows, variations of permeability, and eventually thermal effects. 2.The application of non-local damage models in rocks, with the determination of an internal length characteristic of the material and implied in the models. 3.The inception of fractures, with the localisation of the deformation and damage occuring prior macro-cracking and the associated problem of the bifurcation from micro-cracking to a macro-crack. Training content (objective, benefit and expected impact) The training will mainly consist of modelling. Special attention will be paid to the implementation of non-local damage models with couplings in finite element codes. Comparisons between theoretical results and observations will be carried out. Laboratory experiments will also be performed. Links with industry/industrial relevance(22) We expect our results have impact in the oil and geothermal industries and in Civil Engineering as well as in Earth sciences.

Original text from CORDIS.

Participants

• University of Cambridge · CambridgeCoordinatorUnited Kingdom
• Not availableCity levelFrance

Links

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