Phys. Rev. Focus21, 8 (2008) – Published March 5, 2008
A century-old empirical law relates the number of times a material will survive a repeated stress to the size of the stress. A new model connects this law with steadily accumulating damage at the microscale.
Phys. Rev. Focus21, 4 (2008) – Published January 28, 2008
An electric field could prevent a stressed material from developing cracks, according to a new theory. The field could nudge atoms moving around on the surface and thereby flatten out undulations that can grow into cracks.