SimScale simulation projects by Yogi099 | Page 1

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Cantilever Beam with Variable Cross-Sections

Quarter geometry analysis of spherical pressure vessel - Copy

Determine cyclic stress distribution in a gear tooth under torque.
Geometry:
•	Module: 4 mm, 20 teeth, pressure angle: 20°.
•	Tooth profile: Standard involute.
Material: Alloy Steel (E = 210 GPa, ν = 0.3, S-N curve data).
Boundary Conditions:
•	100 Nm torque applied to gear hub.
•	Cyclic loading (R = 0, frequency = 10 Hz).
Analysis Steps (Simulia/Abaqus):
1.	Static structural analysis for stress.
2.	Fatigue analysis using Goodman correction.
3.	Define contact pairs between meshing teeth.
Parameters to Vary: Torque magnitude (100 Nm vs. 150 Nm).
Deliverables:
•	Stress distribution on tooth flank.
•	Fatigue life contour plots.
•	Critical crack initiation zones.
Validation: Compare with AGMA gear stress equations.

Compare stress in solid vs. lattice-structured implants.
Geometry:
•	Implant dimensions: 0.15 m × 0.02 m (diameter).
•	Lattice structure: Gyroid (50% porosity).
Material: Titanium (E = 110 GPa, ν = 0.33).
Boundary Conditions:
•	1 kN compressive load simulating body weight.
•	Fixed support at the distal end.
Analysis Steps (SimScale):
1.	Static structural analysis.
2.	Homogenize lattice properties (simplified model).
3.	Compare stress and weight reduction.
Deliverables:
•	Stress distribution in lattice vs. solid.
•	Weight reduction percentage.
Validation: Compare with experimental data on lattice compression.

: Analyze stress distribution in a carbon-fiber bracket with a central hole.
Geometry:
•	Bracket dimensions: 0.3 m × 0.1 m × 0.02 m.
•	Central hole diameter: 0.02 m.
Material: Carbon Fiber (E₁ = 140 GPa, E₂ = 10 GPa, ν = 0.3).
Boundary Conditions:
•	Fixed support at one end.
•	1 kN tensile load at the other end.
Analysis Steps (SimScale):
1.	Static structural analysis.
2.	Define composite layup (0°/90° ply orientation).
3.	Study effect of hole size (parametric variation).
Parameters to Vary: Ply orientation (0° vs. 45°).
Deliverables:
•	Von Mises stress around the hole.
•	Deformation plots.
•	Comparison of failure criteria (Tsai-Wu vs. max stress).
Validation: Compare stress concentration factor with Kt=3Kt=3 for a circular hole.

Upgrading the casting mould changing the characteristics of the pipe adding blades and curvature - Copy

Model residual stress in an aluminum casting during cooling.
Geometry:
•	Casting: 0.3 m × 0.2 m × 0.1 m.
•	Sand mold (insulated boundary).
Material: Aluminum (E = 70 GPa, ν = 0.33, α = 24e-6/°C).
Boundary Conditions:
•	Initial temperature: 700°C (casting), 25°C (mold).
•	Natural convection (h = 10 W/m²•K).
Analysis Steps (Simulia/Abaqus):
1.	Transient thermal analysis (cooling over 1 hour).
2.	Sequentially coupled stress analysis.
3.	Account for phase change (latent heat).
Deliverables:
•	Residual von Mises stress after cooling.
•	Temperature gradient history.
Validation: Compare with empirical data for similar castings.

Study transient thermal stress in a ventilated brake disc.
•	Outer diameter: 0.3 m.
•	Ventilation channels: 10 radial slots (5 mm width).
Material: Gray Cast Iron (E = 120 GPa, ν = 0.28, k = 50 W/m•K).
Boundary Conditions:
•	Heat generation: 800°C surface temperature (5-second braking).
•	Convective cooling (h = 30 W/m²•K) post-braking.
Analysis Steps (SimScale):
1.	Transient thermal analysis (20-second simulation).
2.	Coupled thermo-mechanical stress analysis.
3.	Mesh refinement near ventilation channels.
Deliverables:
•	Temperature-time history at critical points.
•	Von Mises stress distribution during heating/cooling.
•	Identification of crack-prone zones.

Evaluate thermal fatigue and mechanical stress in a piston.
Geometry:
•	Simplified piston geometry (cylindrical head with wrist pin hole).
•	Combustion chamber surface area: 0.02 m².
Material: Aluminum Alloy (E = 70 GPa, ν = 0.33, k = 160 W/m•K).
Boundary Conditions:
•	Combustion heat flux: 1.5 MW/m² on the piston crown.
•	Convective cooling (h = 50 W/m²•K, T_ambient = 80°C).
•	Mechanical load: 5 kN axial force from connecting rod.
Analysis Steps (Simulia/Abaqus):
1.	Transient thermal analysis (10-second heating/cooling cycle).
2.	Sequentially coupled thermo-mechanical stress analysis.
3.	Use symmetry to reduce model size.
Parameters to Vary: Material (Aluminum vs. Steel).
Deliverables:
•	Temperature distribution over time.
•	Heat flux vectors in critical regions.
•	Cyclic stress amplitude for fatigue life prediction.

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