Modeling of Fatigue Crack Propagation in Aluminum Alloys Using an Energy Based Approach
Journal Title: Engineering, Technology & Applied Science Research - Year 2013, Vol 3, Issue 4
Abstract
Materials fatigue is a particularly serious and unsafe kind of material destruction. Investigations of the fatigue crack growth rate and fatigue life constitute very important and complex problems in mechanics. The understanding of the cracking mechanisms, taking into account various factors such as the load pattern, the strain rate, the stress ratio, etc., is of a first need. In this work an energy approach of the Fatigue Crack Growth (FCG) was proposed. This approach is based on the numerical determination of the plastic zone by introducing a novel form of plastic radius. The experimental results conducted on two aluminum alloys of types 2024-T351 and 7075-T7351 were exploited to validate the developed numerical model. A good agreement has been found between the two types of results.
Authors and Affiliations
F. Khelil, B. Aour, M. Belhouari, N. Benseddiq
Keywords
Related Articles
- EP ID EP89458
- DOI -
- Views 312
- Downloads 0
Correlation Between Grain Size Distribution and Silicon and Oxygen Contents at Wadi Arar Sediments, Kingdom of Saudi Arabia
Quartz is the major mineral of Wadi Arar sediments. The top two elements contents are oxygen with 63.96 wt%, followed by silicon with 16.35 wt%. There is a positive, weak to medium correlation between grain size and sili...
Evaluation of window size in classification of epileptic short-term EEG signals using a Brain Computer Interface software
The complexity of epilepsy created a fertile ground for further research in automated methods, attempting to help the epileptologists’ task. Over the past years, great breakthroughs have emerged in computer-aided analysi...
Effect of Adaptation Gain in Model Reference Adaptive Controlled Second Order System
Adaptive control involves modifying the control law used by the controller to cope with the fact that the parameters of the system being controlled change drastically due to change in environmental conditions or in syste...
Influence of BCH and LDPC Code Parameters on the BER Characteristic of Satellite DVB Channels
This article presents the results of a study on the noise immunity of DVB channels when higher-order M-ary APSK modulation schemes and concatenated BCH-LDPC codes are used. Dependencies to determine the probability at th...
An Investigation on the Ultimate Strength of Cold-Formed Steel Bolted Connections
This paper presents experimental results and finite element analysis of the cold-formed steel bolted connection under shear loading. Experiments are conducted to study the ultimate behaviors, such as ultimate strength an...