Related Experiment Videos
Time evolution of damage under variable ranges of load transfer.
Oluwole E Yewande1, Yamir Moreno, Ferenc Kun
1The Abdus Salam International Centre for Theoretical Physics, P.O. Box 586, Trieste I-34014, Italy.
Summary
This study explores material damage using a fiber bundle model with variable stress transfer. We observed a transition from mean-field to short-range behavior affecting material lifetime and crack dynamics.
Area of Science:
- Materials Science
- Statistical Physics
- Complex Systems
Background:
- The fiber bundle model is a key tool for understanding material failure.
- Previous models often assumed fixed stress transfer ranges.
- Recent work introduced adjustable stress transfer functions.
Purpose of the Study:
- To investigate the time evolution of damage in a fiber bundle model with variable interaction ranges.
- To analyze how adjustable stress transfer functions influence material lifetime and failure dynamics.
- To understand the microscopic processes governing crack growth in different load transfer regimes.
Main Methods:
- Simulations of a fiber bundle model with an adjustable stress transfer function.
- Numerical calculations to determine lifetime and transition points.
- Microscopic analysis of crack growth dynamics.
Main Results:
- Material lifetime shows a crossover from mean-field to short-range behavior.
- The transition point depends on the system's disorder.
- Crack growth dynamics differ significantly between mean-field and short-range load transfer regimes.
Conclusions:
- The range of fiber interaction critically affects material failure dynamics.
- Disorder plays a key role in determining the transition in behavior.
- Understanding these regimes is crucial for predicting material lifetime and failure.