Calculate the critical force and check if the rod will buckle. Data: \( E=200 GPa, R_{e}=200 MPa, R_{h}=150 MPa \)

Calculate the critical force and check if the rod will buckle. Data: \( E=200 GPa, R_{h}=150 MPa, R_{e}=200 MPa\)

Check if the rod will undergo bending. Data: \( l=5 m, E=205 GPa, R_{h}=150 MPa, a=240 MPa, b=0.56 MPa, P=800 kN\)

What is the maximum value that force P can have to prevent any of the bars in the lattice from buckling? Assuming that all bars in the lattice have the freedom to buckle in any direction, limited only by the lattice nodes, which cannot undergo displacements perpendicular to the lattice plane.

Given is an axially compressed bar with different support conditions in the XY and XZ planes. Determine the dimensions b and h so that the risk of buckling is the same in both planes and the slenderness of the bar corresponds to the critical slenderness. Data: \( E = 205 GPa, R_H = 200 MPa, E = 240 MPa, \)