Paper Title:
Numerical Simulation of Ductile Fracture Process Including Shear-Lip Fracture
  Abstract

Thickness effect is studied experimentally. At free surface of the specimen, shear lip fracture pattern appears, though dimple fracture pattern is observed inside of the specimen. The area of shear-lip fracture changes due to the change of the specimen thickness. In this study, experimental study is conducted by changing specimen thicknesses. Fracture surfaces are precisely observed using SEM, and dimple patterns on them are observed. At the free surface, very narrow no-void area is observed. It is also found that many voids are nucleated in shear-lip fracture area. FEM simulation is carried out using Gurson’s constitutive equation. It is found that shear-lip type fracture is simulated near free surface area by this method. The results show similar tendency with the experimental observation.

  Info
Periodical
Key Engineering Materials (Volumes 345-346)
Edited by
S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim
Pages
839-844
DOI
10.4028/www.scientific.net/KEM.345-346.839
Citation
M. Kikuchi, "Numerical Simulation of Ductile Fracture Process Including Shear-Lip Fracture", Key Engineering Materials, Vols. 345-346, pp. 839-844, 2007
Online since
August 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Masanori Kikuchi, Jun Sasaki, Takehito Ishihara
Abstract:Three kinds of fracture specimens are tested under different constraint conditions. One is 3PB(Three Point Bending) specimen, another is...
675
Authors: Masanori Kikuchi, Shougo Sannoumaru
Abstract:Dimple fracture tests are conducted under mode I and mixed mode lading conditions. Dimple fracture zone and shear-lip fracture zone are...
23
Authors: Masanori Kikuchi, Shougo Sannoumaru
Abstract:Dimple fracture under mixed mode loading condition is studied experimentally and numerically. By the mixed mode loading, it is found that...
757
Authors: Masanori Kikuchi, Ryotaro Senda
573
Authors: Masanori Kikuchi, Ryotaro Senda
Abstract:Crack propagating evaluation is needed to predict and prevent structural damages since many structure defects from numerous crack...
443