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2. Nail (fastener) - Wikipedia

   en.wikipedia.org/wiki/Nail_(fastener)

   Nails are made in a great variety of forms for specialized purposes. The most common is a wire nail. [2] Other types of nails include pins, tacks, brads, spikes, and cleats. Nails are typically driven into the workpiece by a hammer or nail gun. A nail holds materials together by friction in the axial direction and shear strength

3. Shear strength - Wikipedia

   en.wikipedia.org/wiki/Shear_strength

   In structural and mechanical engineering, the shear strength of a component is important for designing the dimensions and materials to be used for the manufacture or construction of the component (e.g. beams, plates, or bolts). In a reinforced concrete beam, the main purpose of reinforcing bar (rebar) stirrups is to increase the shear strength.

4. List of materials properties - Wikipedia

   en.wikipedia.org/wiki/List_of_materials_properties

   Shear modulus: Ratio of shear stress to shear strain (MPa) Shear strength: Maximum shear stress a material can withstand; Slip: A tendency of a material's particles to undergo plastic deformation due to a dislocation motion within the material. Common in Crystals. Specific modulus: Modulus per unit volume (MPa/m^3) Specific strength: Strength ...

5. Penny (unit) - Wikipedia

   en.wikipedia.org/wiki/Penny_(unit)

   A larger number indicates a longer nail, shown in the table below. Diameter of the nail also varies based on penny size, depending on nail type. Nails under 1 + 1 ⁄ 4 inch, often called brads, are sold mostly in small packages with only a length designation or with length and wire gauge designations; for example, 1″ 18 ga. or 3 ⁄ 4 ″ 16 ga.

6. Structural engineering theory - Wikipedia

   en.wikipedia.org/wiki/Structural_engineering_theory

   Strength depends upon material properties. The strength of a material depends on its capacity to withstand axial stress, shear stress, bending, and torsion.The strength of a material is measured in force per unit area (newtons per square millimetre or N/mm², or the equivalent megapascals or MPa in the SI system and often pounds per square inch psi in the United States Customary Units system).

7. Shear force - Wikipedia

   en.wikipedia.org/wiki/Shear_force

   EN8 bright has a tensile strength of 800 MPa and mild steel, for comparison, has a tensile strength of 400 MPa. To calculate the force to shear a 25 mm diameter bar of EN8 bright steel; area of the bar in mm 2 = (12.5 2)(π) ≈ 490.8 mm 2 0.8 kN/mm 2 × 490.8 mm 2 = 392.64 kN ≈ 40 tonne-force 40 tonne-force × 0.6 (to change force from ...