@article {roostaei2019definition, title = {On the definition of elastic strain energy density in fatigue modelling}, journal = {International Journal of Fatigue}, volume = {121}, year = {2019}, pages = {237{\textendash}242}, publisher = {Elsevier}, author = {Roostaei, Ali A and Pahlevanpour, Amirhossein and Behravesh, Seyed Behzad and Jahed, Hamid} }