Three-dimension dynamic simulation of thin epoxy-resin plate and comparison with experiment
This paper presents a 3D dynamic failure analysis of linear elastic body by using particle discretization scheme finite element method (PDS-FEM).PDS-FEM uses two sets of non-overlap characteristic function to discretize function and function derivative.Unlike ordinary FEM,PDS-FEM can easily calculate crack,which is the discontinuity in displacement function.The target is a thin epoxy plate with two anti-symmetric notches under uni-axial tensile boundary condition.A time depend failure criterion,called Tuler-Butcher criterion is applied.The simulation results are compared with the experimental results,which are captured by an image sensor at the rate of one million frames per second.In real world,no ideal isotropic homogeneous body exists.Disturbances exist everywhere.Crack is sensitive to local heterogeneity.Since the mesh configuration determines the candidate crack distribution in PDS-FEM,the uncertainty can be modeled by adding disturbance to the mesh configuration.By using Monte-Carlo simulation,the crack patterns observed in experiment,including bending,kinking and bifurcation are successfully simulated by using PDS-FEM.
Three dimensional dynamic simulation of fracture stochastic model brittle failure photo-elastic experiment
Hao Chen Tomoo Okinaka
Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanic Kinki University,Higashi-Osaka,577-8502,Japan
国际会议
北京
英文
1-9
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）