In the below figure, curve D represents mild steel.

More Questions from Strength of Materials

• According to Euler's column theory, the crippling (buckling) load is given by P = (π^2 * E * I) / (C * l^2). For a column with one end fixed and the other end hinged (pinned), state whether the value of C is 1/2.
• In a balanced reinforced concrete (R.C.C.) rectangular beam section (neutral axis within the section), the design moment of resistance is governed by the compatible stresses developed in which material(s)? Choose the most appropriate basis used in limit state/working stress analysis.
• For a mild steel column with both ends hinged (pinned), select the standard Rankine's constant (a) used in the Rankine–Gordon buckling formula. Choose the value typically adopted in design handbooks.
• The given figure shows the Mohr's circle of stress for two unequal and like principal stresses (σx and σy) acting at a body across two mutually perpendicular planes. The tangential stress is given by
• Define the modulus of rigidity (shear modulus, G). Select the correct ratio that defines G in terms of basic stress–strain quantities.
• Helical spring stiffness under axial load For a closely-coiled helical spring of mean coil diameter D subjected to an axial load W, the stiffness k (load per unit deflection) is:
• Simply supported beam with a symmetric, gradually varying load Load varies from zero at both ends to w per metre at mid-span. Shear force at the centre equals:
• Beam relationships: sign change in shear force and its effect on bending moment Statement: If the shear force at a point changes sign from positive to negative (or vice versa), then the bending moment at that point is zero.
• Elastic energy terminology The capacity of a strained body to do work upon removal of the straining force is called:
• Riveted joints: definition of back pitch in zig-zag riveting Statement: The distance between the centres of rivets in adjacent rows of a zig-zag riveted joint is called back pitch.

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