Journal
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
Volume 41, Issue 11-12, Pages 2977-2993Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijsolstr.2004.01.007
Keywords
finite elements; computational micromechanics; composites; particle fracture; interface decohesion
Categories
Ask authors/readers for more resources
A new three-dimensional quadratic interface finite element is developed. The element is made up by two 6-noded triangular surfaces which initially lie together and connect the faces of adjacent quadratic tetrahedra, the only elements supported by automatic meshing algorithms. The element is introduced within the framework of implicit analysis and large displacements, and can include any traction-separation law at the interface. it is aimed at simulating damage by particle fracture and interface decohesion in composites by the numerical simulation in three-dimensions of a representative volume element which reproduces the microstructure. The element was validated by comparison with previous results of sphere-matrix decohesion obtained in two-dimensional, axisymmetric conditions. In addition, a new control technique is presented to obtain the whole load-displacement curve at a reasonable computational cost when progressive damage throughout the model (due to the simultaneous development of multiple cracks) leads to severe numerical instabilities. The potential of the new element and the control technique were checked in simulations including sphere fracture in composites made up of random distribution of elastic spheres within an elasto-plastic matrix. (C) 2004 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available