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Shear Strength

Mechanical stress at rupture, under shear loading. Uses units of pressure (force per unit area). Shear strength is an "ultimate" type strength, and is not to be confused with shear yield strength (which is seldom provided in material supplier datasheets).

Shear strength is an important property for the performance of fasteners, which experience primarily shear loading during service. It is also important for laminar composites and wood, where it is measured under different orientations with respect to the layers or grain. Interlaminar shear strength is the shear strength of the interfaces between layers in a laminar material.

ASTM testing standards include B831, D732, D4255, D5379, and D7078. ISO standards include 3597, 12579, and 14130.

Material Properties Explained

Material Properties Explained is a handbook published by It is a concise encyclopedia of engineering material properties. It is not tied to the material properties database, and covers a far larger number of properties than those used on the website. Subject matter includes:

  • Differences in definition and testing between types of materials.
  • Common testing variations and their significance.
  • What additional information is required to correctly interpret a value.
  • Any equations to calculate or estimate property values.
  • Synonyms and related terms.
  • Relevant international testing standards, including both ASTM and ISO.

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