Obituary for prof. Paul Paris the inventor of the fatigue crack propagation "Paris' law"
I do not think in Imechanica there has been an obituary for Paul Paris, whose work in fatigue crack propagation is extraordinary and one of the few important and lasting contributions ----- today our aircrafts, both civil and military, all rely on "damage tolerance", which is based on Paris' law. Paris' law, as every great innovations, was published in 1961 only after rejection by three of the leading journals in the fracture mechanics field. It bears the name of "law" although of course it is not like Newton's law. It is a power law, based perhaps on what Baren