joists theme of 2 different materials subjected to pure bending:
Exercise 4.35
Two brass rods and two aluminum are welded to form the composite element, as shown in Fig. Using the data given the maximum allowable moment find when you bend your element with respect to the horizontal axis.
Aluminum Modulus of Elasticity: 70 GPa
delLatón Elastic Modulus: 105 GPa
permissibleAluminum Stress: 100 MPa allowable stress
of Brass: 160 MPa
Exercises 4.36 & 4.37
Two brass rods and two aluminum are welded to form the composite element, as shown in Fig. Using the data given find the maximum allowable moment when flexing the element with respect to the horizontal axis.
of Brass: 105 GPa
allowable stress of Aluminum: 100 MPa allowable stressof Brass: 160 MPa
To find the composite element above the maximum allowable time when flexed with respect to a vertical axis.
Exercises 4.38 & 4.39
has been reinforced wooden beam 6 x 10 inches by putting two plates steel as shown in the figure below. Using the data given below, find the maximum allowable bending moment when flexed with respect to the horizontal axis.
Steel: 29 x 6 10 psi Allowable Stress
Wood: 1800 psi
allowable stress Steel : 24 ksi
For the composite element above, find the maximum bending moment when flexing the element with respect to a vertical axis.
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