abaqus-script-control-static

name	abaqus-script-control-static
description	Abaqus static analysis — linear elastic small-deformation analysis and nonlinear large-deformation/plasticity/contact analysis. Builds on general skills for structural FEA.
version	1.0
capabilities	["linear_static_analysis","nonlinear_static_analysis","plastic_material_analysis","contact_analysis","post_buckling_analysis"]
triggers	["static analysis","linear static","nonlinear static","large deformation","plastic analysis","contact analysis","stress strain displacement","静力分析","非线性分析"]
constraints	["Requires abaqus_scriptcontrol_skills/general/SKILL.md as foundation","N-mm-MPa unit system","Nonlinear analysis requires careful increment control"]

Abaqus Static Analysis Skills

Overview

This skill module provides specialized skills for Abaqus static analysis, including linear static analysis and nonlinear static analysis. Static analysis is the most commonly used analysis method in engineering to calculate stress, strain, and displacement of structures under static loads.

Skills List

1. Linear Static Analysis (skill_static_linear)

Perform linear elastic small-deformation static analysis for stress, strain, and deformation calculation.

Applicable Scenarios:

• Small deformation structural analysis (deformation < 5% of characteristic dimension)
• Linear elastic materials (stress < yield strength)
• Stiffness calculation, strength verification
• Displacement and reaction force calculation

Code Snippet:

# Create linear static step
model.StaticStep(
    name='Static-Step',
    previous='Initial',
    nlgeom=OFF,           # Disable geometric nonlinearity
    initialInc=1.0,
    maxInc=1.0
)

# Set field output
model.FieldOutputRequest(
    name='F-Output-1',
    createStepName='Static-Step',
    variables=('S', 'E', 'U', 'RF', 'MISES')
)

Detailed Documentation: reference/linear.md

---

2. Nonlinear Static Analysis (skill_static_nl)

Handle complex static problems including geometric nonlinearity, material nonlinearity, and contact nonlinearity.

Applicable Scenarios:

• Large deformation analysis (deformation > 5% of characteristic dimension)
• Material plastic analysis
• Contact problems
• Post-buckling analysis

Code Snippet:

# Create nonlinear static step
model.StaticStep(
    name='Nonlinear-Step',
    previous='Initial',
    nlgeom=ON,            # Enable geometric nonlinearity
    initialInc=0.05,      # Small initial increment
    minInc=1e-08,
    maxInc=0.1
)

# Set field output (including plastic strain)
model.FieldOutputRequest(
    name='F-Output-1',
    createStepName='Nonlinear-Step',
    variables=('S', 'E', 'PE', 'PEEQ', 'U', 'RF')
)

Detailed Documentation: reference/nonlinear.md

---

Linear vs Nonlinear Static Analysis

Characteristic	Linear Static Analysis	Nonlinear Static Analysis
Geometric Nonlinearity	OFF	ON
Material Nonlinearity	Elastic	Plastic/Hyperelastic
Contact	Tied	Allow relative sliding
Incremental Steps	Usually 1 step	Multiple iterative steps
Computation Time	Fast	Slower

Typical Applications

Linear Static Analysis Applications

• Structural stiffness analysis
• Simple part strength verification
• Stress concentration analysis
• Symmetric model analysis

Nonlinear Static Analysis Applications

• Large deformation structures (e.g., rubber seals)
• Plastic forming simulation
• Post-buckling behavior
• Contact problem analysis

Quick Reference

Linear Analysis Parameters

Parameter	Recommended Value
nlgeom	OFF
initialInc	1.0
maxInc	1.0
maxNumInc	1

Nonlinear Analysis Parameters

Parameter	Recommended Value
nlgeom	ON
initialInc	0.01 - 0.1
minInc	1e-08 - 1e-05
maxInc	0.1 - 0.5
maxNumInc	100 - 10000

Common Element Types

Element	Application
C3D8R	General solid
C3D8I	Bending problems
C3D10	Complex geometry

Related Skills

• General Skills
• Fatigue Analysis
• XFEM Crack Analysis
• Thermal Stress Analysis