Engineering Data
Comprehensive performance data, load tables, material properties, and technical specifications for structural analysis and design validation.
Material Properties
6105-T5 Aluminum Alloy
Corrosion Resistance
Excellent resistance to atmospheric corrosion. Clear anodized finish provides additional protection.
Conductivity
High thermal and electrical conductivity. Ideal for applications requiring heat dissipation.
Machinability
Excellent machinability rating. Easy to drill, tap, and machine for custom modifications.
Load Capacity Tables
Maximum recommended loads for common extrusion sizes under various support conditions.
Uniformly Distributed Load (UDL) - Simply Supported
Safety factor of 4:1 applied
| Profile Size | 24" Span | 36" Span | 48" Span | 60" Span | 72" Span |
|---|---|---|---|---|---|
| 40mm x 40mm | 850 lbs | 375 lbs | 215 lbs | 140 lbs | 95 lbs |
| 40mm x 80mm | 1,600 lbs | 710 lbs | 400 lbs | 255 lbs | 180 lbs |
| 80mm x 80mm | 3,200 lbs | 1,420 lbs | 800 lbs | 510 lbs | 355 lbs |
| 40mm x 120mm | 2,100 lbs | 935 lbs | 525 lbs | 335 lbs | 235 lbs |
| 80mm x 120mm | 4,200 lbs | 1,870 lbs | 1,050 lbs | 670 lbs | 465 lbs |
| 120mm x 120mm | 6,300 lbs | 2,800 lbs | 1,575 lbs | 1,010 lbs | 700 lbs |
Point Load at Center - Simply Supported
Safety factor of 4:1 applied
| Profile Size | 24" Span | 36" Span | 48" Span | 60" Span | 72" Span |
|---|---|---|---|---|---|
| 40mm x 40mm | 425 lbs | 285 lbs | 215 lbs | 170 lbs | 145 lbs |
| 40mm x 80mm | 800 lbs | 535 lbs | 400 lbs | 320 lbs | 270 lbs |
| 80mm x 80mm | 1,600 lbs | 1,070 lbs | 800 lbs | 640 lbs | 535 lbs |
| 40mm x 120mm | 1,050 lbs | 700 lbs | 525 lbs | 420 lbs | 350 lbs |
| 80mm x 120mm | 2,100 lbs | 1,400 lbs | 1,050 lbs | 840 lbs | 700 lbs |
| 120mm x 120mm | 3,150 lbs | 2,100 lbs | 1,575 lbs | 1,260 lbs | 1,050 lbs |
Notes on Load Tables
- • All values include a 4:1 safety factor based on yield strength
- • Loads assume AngleLock connections at supports
- • Values based on bending stress only (does not include deflection limits)
- • For cantilever or continuous beam configurations, contact engineering
- • Higher loads possible with additional supports or reinforcement
Deflection Calculations
Simply Supported Beam - Uniformly Distributed Load
Simply Supported Beam - Point Load at Center
Deflection Guidelines
- • General applications: Limit deflection to L/180 (span/180)
- • Precision equipment: Limit deflection to L/360 or better
- • Vibration-sensitive: Consult engineering for stiffness requirements
- • Example: 48" span general use → maximum deflection = 0.267"
Section Properties
Geometric properties for common extrusion profiles.
| Profile Size | Area (in²) | Ixx (in⁴) | Iyy (in⁴) | Weight (lb/ft) |
|---|---|---|---|---|
| 40mm x 40mm | 0.98 | 0.42 | 0.42 | 1.15 |
| 40mm x 80mm | 1.96 | 1.68 | 0.84 | 2.30 |
| 80mm x 80mm | 3.92 | 3.36 | 3.36 | 4.60 |
| 40mm x 120mm | 2.45 | 3.15 | 1.05 | 2.88 |
| 80mm x 120mm | 4.90 | 6.30 | 4.20 | 5.75 |
| 120mm x 120mm | 7.35 | 9.45 | 9.45 | 8.63 |
FEA Modeling Guidelines
Connection Modeling
AngleLock connections provide rigid joint behavior when properly torqued. For FEA analysis:
- •Model as fixed/rigid joints for preliminary analysis
- •For critical applications, model full bracket geometry with contact elements
- •Typical joint stiffness: 90-95% of continuous beam
Mesh Recommendations
- •Element type: Beam elements for global analysis, solid elements for detailed stress
- •Mesh size: 10-20mm for global, 2-5mm for local stress concentrations
- •Use mesh refinement at connections and load application points
Validation
Compare FEA results against hand calculations for simple load cases to validate model. Our engineering team can provide FEA validation services for critical applications.