Why Ceramics are stronger in compression than in tension

A bar having the cross section shown has been formed by securely bonding brass and aluminum stock. Using the data given in the table, determine the largest permissible bending moment when the composite bar is bent about a vertical axis. Take x = 30 mm. Modulus of elasticity Allowable stress Aluminum Aluminum 70 GPa 100 MPa 10 mm Brass- 10 mm 40 mm- Brass 105 GPa 160 MPa 10 mm X 10 mm t The largest permissible bending moment when the composite bar is bent about a vertical axis is 1.689 kN-m.

Discuss the concept of strain hardening in materials?

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