Comment What about determining material properties? (Score 0) 140
Besides not giving any detail about the computation process (wich is not a real problem, since the article is not a scintific paper), I doubt a novel approach would solve all of our problems at once. In such cases the problem lies usually not in the computaional model, but in determining the input data (in this case: the material properties) for the calculations.
Even if a model works - there are even some analytical solutions for a very few (~50) mechanical problems to determine the stress distribution near a crack tip - it is always based on an ideal material. Metals, plastics, glas are usually modeled as isotropic, ideally elastic materials, but in the reality they are never so perfect, so altough the models work on a computer, their results can never be directly used for real-world problems, such as crack propagation in the so-called heat affected zone of a welded steel structure or in any part of a reinforced concrete beam or column, not to mention wood.
We just do not now what exactly there is in the material.
Even if a model works - there are even some analytical solutions for a very few (~50) mechanical problems to determine the stress distribution near a crack tip - it is always based on an ideal material. Metals, plastics, glas are usually modeled as isotropic, ideally elastic materials, but in the reality they are never so perfect, so altough the models work on a computer, their results can never be directly used for real-world problems, such as crack propagation in the so-called heat affected zone of a welded steel structure or in any part of a reinforced concrete beam or column, not to mention wood.
We just do not now what exactly there is in the material.
