菜单
Abaqus fatigue analysis — high-cycle fatigue (S-N curve) and low-cycle fatigue life prediction under cyclic loading.
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基于 SOC 职业分类
Abaqus composite material analysis — laminated shell elements, classical laminate theory (CLT), Hashin failure criteria, and progressive damage simulation.
Abaqus Python scripting fundamentals — geometric modeling, material definition, step setup, boundary conditions & loads, mesh generation, and job submission. Foundation skill for all Abaqus analysis types.
Abaqus static analysis — linear elastic small-deformation analysis and nonlinear large-deformation/plasticity/contact analysis. Builds on general skills for structural FEA.
Abaqus thermal stress analysis — steady-state and transient heat transfer, sequential and fully-coupled thermal-mechanical analysis.
Abaqus XFEM (eXtended Finite Element Method) — crack initiation and propagation simulation without remeshing. Supports damage initiation criteria and evolution laws.
Abaqus user subroutine development in Fortran — UMAT/VUMAT custom materials, DLOAD/VDLOAD loads, DISP/VDISP boundaries, USDFLD fields, SIGINI/SDVINI initial conditions, FRIC/VRIC friction, HETVAL/FILM thermal, UEL/VUEL custom elements.
| 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"] |
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.
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:
Code Snippet:
# S-N curve parameters
Sf_prime = 1000.0 # Fatigue strength coefficient (MPa)
b = -0.085 # Fatigue strength exponent
Se = 200.0 # Fatigue limit (MPa)
# Basquin's equation for life calculation
# S = Sf * (2N)^b
log_2N = (log_S - log_Sf) / b
cycles_to_failure = int(10**log_2N / 2)
| Material | Sf' (MPa) | b | Se (MPa) |
|---|---|---|---|
| Steel | 1000 | -0.085 | 200 |
| Aluminum Alloy | 500 | -0.110 | 150 |
| Factor | Effect |
|---|---|
| Surface Roughness | Reduces fatigue strength |
| Size Effect | Larger sizes reduce strength |
| Load Type | Bending > Tension/Compression > Torsion |