Modeling the Tensile Size-Dependency in Polymer Nanofiber Elasticity
In this paper, a higher order strain gradient model is constructed to predict this size dependence of the elastic property of nanofibers under uniaxial tensile tests. We can show that the size effects in tensile test can be explained using a new model based on the higher order strain gradient elasticity (HSGE). A series of mechanical testing were performed to verify the model, and good agreement is found between the model prediction and the data obtained in the experiment. Compared with the model prediction based on surface effect (SE), our model can better capture the size effect in tensile test.
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
B. Yuan et al., "Modeling the Tensile Size-Dependency in Polymer Nanofiber Elasticity", Advanced Materials Research, Vols. 236-238, pp. 2187-2190, 2011