Could someone please answer these physics question ASAP? You need to know normal and bending stress, eccentric forces, plastic and elastic moments.
Q1. The column in the figure below is built up by gluing the two identical boards together.
If the wood has an allowable normal stress of σallow = 5.7 MPa, determine the maximum allowable eccentric force P that can be applied to the column.
Express your answer to three significant figures and include the appropriate units.
Answer: P =
Q2. The masonry pier in the figure below is subjected to the F = 850 kN load. Consider x = 0.25 mm and y = 0.5 mm. Neglect the weight of the pier.
Determine the normal stress at corner A.
Express your answer with the appropriate units.
Answer:
Determine the normal stress at corner B.
Express your answer with the appropriate units.
Answer:
Determine the normal stress at corner C.
Express your answer with the appropriate units.
Answer:
Q3. The beam is made from three types of plastic that are identified and have the moduli of elasticity shown in the figure.
Determine the maximum bending stress in the PVC.
Express your answer to three significant figures.
Answer:
Q4. The beam shown in the figure below is made of elastic perfectly plastic material for which σY = 365 MPa.
Determine the maximum elastic moment that can be applied to the cross section.
Express your answer to three significant figures and include appropriate units.
Answer:
Determine the maximum plastic moment that can be applied to the cross section.
Express your answer to three significant figures and include appropriate units.
Answer:
Q5: The beam in the figure below is made of an elastic-plastic material for which σY = 250 MPa. The largest moment in the beam occurs within the centre section a-a.
Determine the magnitude of each force P that causes this moment to be the largest elastic moment.
Express your answer to three significant figures and include the appropriate units
Answer:
Determine the magnitude of each force P that causes this moment to be the largest plastic moment.
Express your answer to three significant figures and include the appropriate units.
Answer:
