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Full-field Strain Measurements for Microstructurally Small Fatigue Crack Propagation Using Digital Image Correlation Method
Published on: January 16, 2019
Application of Local Approaches to Crack Development in Structural Materials
1Institute of Mathematics and Descriptive Geometry, Faculty of Civil Engineering, Brno University of Technology, 602 00 Brno, Czech Republic.
Materials (Basel, Switzerland)
|August 13, 2026
Summary
This review explores finite element method (FEM) modeling for structural materials, focusing on multiscale analysis. It details simulating crack initiation and propagation influenced by microstructures in various materials like composites.
Area of Science:
- Materials Science
- Computational Mechanics
- Solid Mechanics
Background:
- Engineers and scientists require accurate simulations of material behavior under stress.
- Modeling structural materials is crucial for predicting component and structure performance.
- The finite element method (FEM) is a key tool for these simulations.
Purpose of the Study:
- To review advancements in structural material modeling using the finite element method.
- To highlight multiscale analysis techniques, particularly hierarchical approaches.
- To discuss the impact of local microstructure on macrostructure behavior, focusing on crack development.
Main Methods:
- Application of the finite element method (FEM) for deterministic and statistical modeling.
- Explanation of behavior simulation across different length scales.
- Focus on two-scale hierarchical multiscale simulations.
- Utilizing modified finite element methods for enhanced accuracy.
Main Results:
- Detailed modeling approaches for crack initiation around stress concentrators and within composites.
- Simulation of material behavior considering microstructural features like inclusions and grain boundaries.
- Analysis of composites with short/long fibers and interfaces.
- Integration of microstructural effects into macroscale predictions.
Conclusions:
- Multiscale modeling using FEM provides critical insights into material failure mechanisms.
- Understanding the interplay between microstructure and macrostructure is essential for reliable engineering designs.
- The reviewed methods are applicable to a range of materials, including composites and those with inherent defects.
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