| name | abaqus-script-control-fatigue |
| description | Abaqus fatigue analysis — high-cycle fatigue (S-N curve) and low-cycle fatigue life prediction under cyclic loading. |
| version | 1.0 |
| capabilities | ["high_cycle_fatigue","low_cycle_fatigue","sn_curve_life_prediction","damage_accumulation"] |
| triggers | ["fatigue analysis","fatigue life","S-N curve","cyclic loading","high-cycle fatigue","low-cycle fatigue","疲劳分析","疲劳寿命"] |
| constraints | ["Requires general/SKILL.md and static/SKILL.md as foundation","Reference documentation is currently limited — expand for production use","Fatigue analysis requires material S-N curve data"] |
Abaqus Fatigue Analysis Skills
Overview
This skill module provides specialized skills for Abaqus fatigue analysis, including high-cycle fatigue and low-cycle fatigue analysis. Fatigue analysis is used to predict the fatigue life of structures under cyclic loading.
Skills List
1. High-Cycle Fatigue Analysis (skill_fatigue_high_cycle)
High-cycle fatigue life prediction based on S-N curves, applicable for cyclic loads with stress levels below yield strength.
Applicable Scenarios:
- Stress level σ_max < σ_y (yield strength)
- Number of cycles N > 10^4 ~ 10^6
- Fatigue problems dominated by elastic deformation
Code Snippet:
Sf_prime = 1000.0
b = -0.085
Se = 200.0
log_2N = (log_S - log_Sf) / b
cycles_to_failure = int(10**log_2N / 2)
Quick Reference
S-N Curve Parameters (Typical Values)
| Material | Sf' (MPa) | b | Se (MPa) |
|---|
| Steel | 1000 | -0.085 | 200 |
| Aluminum Alloy | 500 | -0.110 | 150 |
Influencing Factors
| Factor | Effect |
|---|
| Surface Roughness | Reduces fatigue strength |
| Size Effect | Larger sizes reduce strength |
| Load Type | Bending > Tension/Compression > Torsion |
Detailed Reference
Related Skills
