220
6 Two-Dimensional Problems in Elasticity …
Fig. 6.23 Curved beam
Fig. 6.24 Crane hook
23. A semicircular curved bar is loaded as shown in Fig. 6.25 and has a trapezoidal
cross-section. Calculate the tensile stress at point A if P = 5 kN
24. A curved beam with a circular centreline has a T-section shown in Fig. 6.26. It
is subjected to pure bending in its plane of symmetry. The radius of curvature
of the concave face is 60 mm. All dimensions of the cross-section are fixed
as shown except the thickness t of the stem. Find the proper value of the stem
thickness so that the extreme fibre stresses are bending will be numerically
equal.
6 Two-Dimensional Problems in Elasticity …
Fig. 6.23 Curved beam
Fig. 6.24 Crane hook
23. A semicircular curved bar is loaded as shown in Fig. 6.25 and has a trapezoidal
cross-section. Calculate the tensile stress at point A if P = 5 kN
24. A curved beam with a circular centreline has a T-section shown in Fig. 6.26. It
is subjected to pure bending in its plane of symmetry. The radius of curvature
of the concave face is 60 mm. All dimensions of the cross-section are fixed
as shown except the thickness t of the stem. Find the proper value of the stem
thickness so that the extreme fibre stresses are bending will be numerically
equal.