Questions from Mechanics

Q: Solve the preceding problem if the normal and shear stresses acting on

Solve the preceding problem if the normal and shear stresses acting on element B are -56 MPa, -17 MPa, and 27 MPa (in the directions shown in the figure) and the angle is 40° (clockwise)....

Q: The polyethylene liner of a settling pond is subjected to stresses σx

The polyethylene liner of a settling pond is subjected to stresses σx = 350 psi, σy = 112 psi, and τxy = 120 psi, as shown by the plane-stress element in the figure pa...

Q: Solve the preceding problem if the normal and shear stresses acting on

Solve the preceding problem if the normal and shear stresses acting on the element are σx = 2100 kPa, σy = 300 kPa, and τxy = -560 kPa, and the seam is oriented at an...

Q: Two steel rods are welded together (see figure); the seam

Two steel rods are welded together (see figure); the seam is oriented at angle θ = -40°. The stresses on the rotated element are σx1 = 10 ksi, σy1 = -12 k...

Q: Repeat the previous problem using θ = -40° and stresses

Repeat the previous problem using θ = -40° and stresses on the rotated element: σx1 = 70 MPa, σy1 = -82 MPa, and τx1y1 = -35 MPa. Data from P...

Q: A rectangular plate of dimensions 3.0in. × 5.

A rectangular plate of dimensions 3.0in. × 5.0 in is formed by welding two triangular plates (see figure). The plate is subjected to a tensile stress of 500 psi in the long direction and...

Q: Solve the preceding problem for a plate of dimensions 100 mm ×

Solve the preceding problem for a plate of dimensions 100 mm × 250 mm subjected to a compressive stress of -2.5 MPa in the long direction and a tensile stress of 12.0 MPa in the short dir...

Q: A simply supported beam is subjected to point load P at mid

A simply supported beam is subjected to point load P at mid-span. The normal stress on an element at mid-span is known to be σx = 1.5 ksi. Determine the element stresses if it is rotated th...

Q: Repeat the previous problem using σx = 12 MPa.

Repeat the previous problem using σx = 12 MPa. Data from Problem 17: A simply supported beam is subjected to point load P at mid-span. The normal stress on an element at mid-span is known...

Q: At a point on the surface of an elliptical exercise machine,

At a point on the surface of an elliptical exercise machine, the material is in biaxial stress with σx = 1400 psi and σy = -900 psi, as shown in the figure part a. The figure par...