Choisis la bonne expression pour compléter la phrase. Le Pape est le chef de l’église ____________________.

A point in a structural member [E = 83 GPa, G = 31 GPa] is subjected to the following stress magnitudes. The stress directions are shown in the image. Determine εy.|σx| = 45 MPa|σy| = 95 MPa|τxy| = 70 MPa

A driver accidentally bumped a fire hydrant creating a bending moment of 650 N·m in the pipe below. The pipe has an inside diameter of 180 mm and a wall thickness of 9 mm and is pressurized to 390 kPa. Determine the largest normal stress along the length of the pipe.

A point in a structural member is subjected to plane strain. Determine the average normal strain associated with the maximum shear strain in the x-y plane.εx = –590 μεεy = –610 μεγxy = –260 μrad

A point in a structural member is subjected to the following stress magnitudes. The stress directions are shown in the image. Determine the orientation of the principal planes, θp.|σx| = 25 MPa|σy| = 65 MPa|τxy| = 55 MPa

The spherical face shield of an astronaut’s helmet is made from polycarbonate with a yield strength of 118 MPa. The shield has an outside diameter of 358 mm and a thickness of 4.4 mm. If the shield is successfully pressure tested to 855 kPa on Earth, determine the factor of safety with respect to yielding.

The spherical face shield of an astronaut’s helmet is made from polycarbonate with a yield strength of 108 MPa. The shield has an outside diameter of 366 mm and a thickness of 4.0 mm. If the shield is successfully pressure tested to 955 kPa on Earth, determine the factor of safety with respect to yielding.

A point in a structural member [E = 135 GPa, G = 52 GPa] is subjected to the following stress magnitudes. The stress directions are shown in the image. Determine εz.|σx| = 20 MPa|σy| = 95 MPa|τxy| = 70 MPa

A point in a structural member [E = 123 GPa, G = 47 GPa] is subjected to the following stress magnitudes. The stress directions are shown in the image. Determine εz.|σx| = 35 MPa|σy| = 100 MPa|τxy| = 95 MPa

A point in a structural member is subjected to plane strain. Determine the orientation of the planes associated with the maximum in-plane shear strain, θs.εx = 390 μεεy = 600 μεγxy = 90 μrad