Custom Engineered Composite Products

Our technical staff has over 60 years of combined experience in the design and manufacturing of engineered composite products. Amalga Composites can provide engineered solutions for today's most technical challenges.

Custom Fabricated Tubing

Key features of Custom Fabricated Tubing include:

  • Stiffness
  • Strength
  • Weight reduction
  • Impact resistance
  • Conductivity
  • Vibration/natural frequency

Mechanical Properties of Custom Fabricated Tubing

The mechanical properties of Custom Fabricated Tubing are listed in the table below:

Property E-Glass Commercial Carbon Intermediate Modulus High Modulus
Flexural Modulus (psi) 5,500,000 16,000,000 22,000,000 30,000,000
Tensile Strength (psi) 115,000 130,000 140,000 140,000
Compressive Strength (psi) 57,000 130,000 47,000 47,000
Shear Modulus (psi) 800,000 800,000 800,000 800,000
Shear Strength (psi) 8,000 8,000 8,000 8,000
CTE (in/in/°F) 4.8 0.17 -43.6 -43.6
Poissons ratio (NUyx) .27 0.33 0.069 0.070
Density (Pound/cubic inch) 0.072 0.058 0.058 0.058

Engineering Capability

Custom Fabricated Tubing can be used for the following analyses

  • Structural Analysis
  • Laminate Analysis
  • Solid Modeling
  • Critical Speed/Natural Frequency Analysis
  • Buckling Stress Analysis
  • Joining Analysis
  • Material Selection

Stiffness Comparison

Stiffness of Custom Fabricated Tubing can be Fabricated to the following:

  • Filament wound composites can be fabricated to match the stiffness of traditional materials
  • Filament wound composites offer the advantage of customizing stiffness by varying both the type of fiber and the angle of the reinforcement

Effect of Wind Angle on Stiffness

  • The stiffness of a composite structure is controlled by the orientation of the reinforcing fibers
  • The design engineer must understand the requirements of the application to properly design the filament wound structure

Ultimate Tensile Strength Comparison

  • Filament wound composites exhibit superior strength
  • They do not yield or plastically deform the way that metal does
  • Filament wound composites offer the advantage of customizing strength by varying both the type of fiber and the angle of the reinforcement

The Effect of Wind Angle on Strength

  • As with stiffness, the strength of a composite structure is also controlled by the orientation of the reinforcing fibers
  • The design engineer must understand the requirements of the application to properly design the filament wound structure

This information has been sourced, reviewed and adapted from materials provided by Amalga Composites, Inc.

For more information on this source, please visit Amalga Composites, Inc.

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