Analysis of Void Growth and Coalescence in Porous Polymer Materials. Coalescence in Polymer Materials
Journal Title: Engineering, Technology & Applied Science Research - Year 2013, Vol 1, Issue 3
Abstract
The use of polymeric materials in engineering applications is growing more and more all over the world. This issue requests new methodologies of analysis in order to assess the material’s capability to withstand complex loads. The use of polyacetal in engineering applications has increased rapidly in the last decade. In order to evaluate the behavior, the damage and coalescence of this type of polymer, a numerical method based on damage which occurs following several stages (nucleation of cavities, their growth and coalescence in more advanced stages of deformation) is proposed in this work. A particular attention is given on the stress-strain and the volumetric strain evolution under different triaxiality and for three initial void shapes. Its application to polyacetal allows approving this approach for technical polymers. Finally, this method allow us to compare the obtained results of basic calculations at different triaxiality and to discuss their possible influence on the initial size and the geometrical shape of the porosity on the material failure.
Authors and Affiliations
S. A. Reffas, M. Elmeguenni, M. Benguediab
Keywords
Related Articles
- EP ID EP89419
- DOI -
- Views 245
- Downloads 0
Development of the Contiguous-cells Transportation Problem
The issue of scheduling a long string of multi-period activities which have to be completed without interruption has always been an industrial challenge. The existing production/maintenance scheduling algorithms can only...
A New Olympic Ring Shaped Antenna for UWB Applications
In this paper, we propose a new Olympic Ring Shaped antenna for UWB applications. The proposed antenna is designed to operate from 3.1 to 10.6 GHz. It consists of a five circular ring shapes form an Olympic ring shape wi...
Effects of Greenshipping to the Maritime Industry
In order to keep focus on the important agenda of sustainability which has lately become an issue of priority, the maritime industry must implement technologies on existing vessels and on those under construction so as t...
Environmental Risk Assessment and Management in Oil Platform Construction Phase Activities: A Case Study
The construction phase is one of the very risky stages engaged in oilfields, which usually involves minor to severe human, financial, and environmental damages. It includes a major part of lost working times, and in rece...
Controller Design For DFIG Driven By Variable Speed Wind Turbine Using Static Output Feedback Technique
This paper describes the controller design for a DFIG based wind energy generation system using the static output feedback technique through the LMI Toolbox. The features of the DFIG, its converters and their controllers...