Paul Croce Paris (August 7, 1930 - January 15, 2017) was an American academic, engineering consultant and researcher in the field of mechanics and fatigue.
He was known particularly for introducing fracture mechanics methods to the aviation industry, and for the empirical Paris' law relating crack growth rate to the amplitude of the stress intensity factor.
[1] Paris was trained in applied mechanics at Lehigh University.
[2] He was a faculty associate at Boeing in the summer of 1955, where he investigated the Comet fatigue (material) failure.
His first paper[3] on fracture mechanics was famously rejected by top journals.