Inputting Flexural Strength and Modulus data into material properties

[Anonymous]

I'm going to simulate my supplier's material for how much it flexes under specific loads.

The data in the material data sheet attached (or any material data sheet I've seen actually) doesn't cover most of the parameters required by the material properties.

Is there a way to interpret the data sheet data or calculate to get the Tensile Strength and Yield Strength required by the simulator?

[John_Holtz]

Hi @Anonymous

These are the material input in Fusion that are available on the datasheet that you show:

1. Young's Modulus: Also known as the Modulus of Elasticity. The Flexural Modulus on the data sheet is the closest property. The flexural modulus is measured from a bending test, but for most materials the flexural modulus = Young's modulus. According to Wikipedia, polymers are an exception to that.
2. Tensile Strength: This is given on the data sheet as the tensile strength

None of the other material properties are listed on the data sheet. In general, they cannot be calculated from any other properties, and certainly not from any of the data that you have shown. What is this material? Is it listed on matweb.com?

Of course, you only need to enter the material properties that will be used in the analysis. (I hope that the software does not require you to enter information that is not needed, but it could.) For example, a static analysis needs the Young's Modulus and Poisson's Ratio at a minimum. Everything else is required only if you have a load in the analysis that requires the property. For example:

• Thermal Conductivity is only required for a thermal analysis.
• Specific heat is only used in a transient thermal analysis (which Fusion does not perform yet, so this input is not needed).
• Thermal Expansion Coefficient is used in a thermal stress analysis where the temperatures cause expansion.
• Shear Modulus is calculated from the Young's Modulus and Poisson's Ratio.
• Density is used if you have gravity or a centrifugal load.
• Damping coefficient should only be used in the Event Simulation.
• The yield strength to calculate the safety factor in a linear static analysis and for plasticity in a nonlinear static analysis.. If you are not interested in that result, then the value that you enter is not critical. (Just remember if you enter a dummy value or not.) My guess is that your material does not yield, so that is why it is not given by the manufacturer. It may be a brittle material and goes from elastic to breaking.