@article{1121,
  author = {Kyoungsoo Park and Glaucio Paulino and Jeffrey Roesler},
  title = {Determination of the kink point in the bilinear softening model for concrete},
  year = {2008},
  journal = {Engineering Fracture Mechanics},
  volume = {75},
  number = {13},
  pages = {3806{\textendash}3818},
  publisher = {Elsevier},
}