Visualization method for stress-field evolution during rapid crack propagation using 3D printing and photoelastic testing techniques.

ABSTRACT: Quantitative visualization and characterization of stress-field evolution during fracture rapid growth is critical for understanding the mechanisms that govern the deformation and failure of solids in various engineering applications. However, the direct capture and accurate characterization of a rapidly-changing stress field during crack propagation remains a challenge. We report an experimental method to quantitatively visualize and characterize rapid evolution of the stress-field during crack propagation in a transparent disc model containing a penetrating fusiform crack. Three-dimensional (3D) printing technology and a stress-sensitive photopolymer resin were adopted to produce the disc model and to alleviate the residual processing stress that usually blurs the dynamic stress field du

SUBMITTER: Ju Y 

PROVIDER: S-EPMC5847554 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature