Filling Sharp Features on Corner of Triangular Mesh by using Enhanced Advancing Front Mesh (EAFM) method

Abstract

Repairing an incomplete polygon mesh constitutes a primary difficulty in 3D model construction, especially in the computer graphics area. The objective of hole-filling methods is to keep surfaces smoothly and continually filled at hole boundaries while conforming with the shapes. The Advancing Front Mesh (AFM) method was normally used to fill simple holes. However, there has not been much implementation of AFM in handling sharp features. In this paper, we use an AFM method to fill a holes on sharp features. The Enhanced Advancing Front Mesh (EAFM) method was introduced when there was a conflict during triangle creation. The results of the study show that the presented method can effectively improve the AFM method, while preserving the geometric features and details of the original mesh.

Mixed Mode Fracture Assessment for Box Girder with Crack Damage under Combined Loads

“…Stress intensity factor (SIF) is used to consider as an important fracture parameter for assessing the fracture failure of structures, which has been effectively verified in many studies. At present, the methods of evaluating stress intensity mainly include displacement extrapolation method (Xuan et al, 2006;Awang et al, 2018), interaction integration method (Chen et al, 2018;Hou et al, 2018), extended finite element method (Pang et al, 2016;Benvenuti, 2017; Peng & Yang, 2020), etc. These methods play a major role in predicting stress intensity factors accurately.…”