Paper Title:
Development of Damage Zone by Scattered Cracking around Crack Tips in Brittle Solids under Compression
  Abstract

Compression induced formation of a damage zone, which would result in a shear fault in brittle solids is studied. In a compression test of flawed PMMA, an apparent damage zone composed of large number of scattered cracks, which have no intersection but exist closely with each other, is experienced. The damage zone first appears in a vicinity of tips of artificial flaw and then extends gradually with increase of applied compression. The direction of extension of damage zone is observed to incline about 0 30 from the axis of principal compression. A mechanism of the extension of damage zone with increase of applied compression is discussed using a scattered cracking model. It was found that each crack composing the damage zone has a possibility to open due to crack-to-crack interaction and a localized tensile stress appears both inside and outside of the damage zone. The localized tension appeared in the interior of the damage zone may increase crack density, while that of appeared in the exterior of the damage zone could bring an extension of the damage zone.

  Info
Periodical
Key Engineering Materials (Volumes 348-349)
Edited by
J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel
Pages
965-968
DOI
10.4028/www.scientific.net/KEM.348-349.965
Citation
A. Saimoto, A. Toyota, Y. Imai, "Development of Damage Zone by Scattered Cracking around Crack Tips in Brittle Solids under Compression", Key Engineering Materials, Vols. 348-349, pp. 965-968, 2007
Online since
September 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: J. Weerheijm
Abstract:The rate effect on concrete tensile strength can be modeled by the description of crack extension in a fictitious fracture plane [1,2].The...
991
Authors: Zhi Hui Li, Jun Ping Shi, An Min Tang
Abstract:Based on fundamental ideas in tribology and basic concept of stress state in solid mechanics, the existence of frictional force on shear...
90
Authors: Yan Jun Chang, Gui Qiong Jiao, Ke Shi Zhang
Chapter 7: Computational Mechanics
Abstract:Based on the analysis of the woven structure, the compressive fracture process and strength of a 2.5D-C/SiC ceramic matrix composite were...
2859
Authors: Da Gang Lu, Yan Jun Li, Zhen Yu Wang, Guang Yuan Wang
Chapter 3: Civil Engineering
Abstract:To investigate the seismic behavior of RC columns under bidirectional lateral loading, numerical analysis for tests of RC columns under...
727