Microscopic mechanics of fiber networks

摘要: We report simulations of two‐dimensional fiber networks random geometry. The stress distribution along a agrees with the mean‐field Cox prediction, but transfer factor is determined by properties whole and not just local segment stiffness as suggested micromechanical models. This leads to linear density dependence Young’s modulus network. initial loss at small strain can be explained an exponential frequency microscopic stresses, asymptotic large external predictions. simulated behavior independent fracture mechanism in both regions.