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[Pratish153]

Hi I have designed a sandwich concrete brick consisiting of Structural Lightweight Concrete sandwiched between normal Concrete. How do I determine the compressive strength of concrete? Your help will be very much appreciated

[Vinayak Vipradas]

You can find the Compressive Yield and Compressive Ultimate Strength of a Material in Engineering Data Cell of Static Structural Analysis. Since concrete is a brittle material you will need to use the Compressive Ultimate Strength.
Does this answer your question?

Regards Vinayak
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[Pratish153]

I need to find the compressive strength of the whole brick not the material not the material only. By the way is there a way to find out the failure load of the brick?

[Vinayak Vipradas]

For the first question, you can find the compressive strength from the available data on the internet or test the material. For the second question, a Finite Element Solution with Safety Factor Result, under Stress Tool, can be used.
Regards,
Vinayak
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[Pratish153]

May I know which stress tool to use?

[Vinayak Vipradas]

Since concrete is a brittle material, you can use the Maximum Tensile Stress Safety Tool or the Mohr-Coulomb Stress Safety Tool. In general, the selection of the Tool will depend on the expected mode of deformation- if only tensile stress is subjected, then Maximum Tensile Stress Safety Tool can be used whereas if compressive stress is also involved then Mohr-Coulomb Stress Safety Tool should be used.

For detailed information on Stress Tools provided by Ansys Mechanical, please refer to the following link:
Stress Tools (ansys.com)

Regards Vinayak
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