Analyzing Forces and Moments on Cross-Sections in Structures
School
University of British Columbia**We aren't endorsed by this school
Course
MECH 260
Subject
Mechanical Engineering
Date
Dec 10, 2024
Pages
12
Uploaded by DeaconRose9451
Determining forces and moments on arbitrary cross-section:1.Section the structure from the side of external loads, then show the loads. (You could also do this with remaining part of the structure and reactions, if reactions are known, but this might be more difficult)2.In 2D, assume N, V and Mon the cross-section of interest. Use force and moment equilibria to determine these forces and moment. Some of them might be zero. 3.In 3D, assume N, two Vs, two Ms and T on the cross-section of interest. Use force and moment equilibria to determine these forces and moment. Some of them might be zero.
1.The nose wheel of the plane is subjected to a design load of 12 kN.Determine the principal stresses acting on the aluminum wheel support at point A.
1.The nose wheel of the plane is subjected to a design load of 12 kN.Determine the principal stresses acting on the aluminum wheel support at point A.
2. If the box wrench is subjected to the 50 lb force, determine the principal stress and maximum shear stress at point B on the cross section of the wrench at section aβa. Specify the orientation of these states of stress and indicate the results on elements at the point.
ππ=πππ΄π΄+βπππ§π§π¦π¦πΌπΌπ§π§+πππ¦π¦π§π§πΌπΌπ¦π¦This is the equation we used for combinedloadingβ positive moment leads to compression when y is positive
3. Determine the principal stresses and absolute maximum shear stress developed at points Aand B on the cross section of the bracket at section aβa.