For An Aluminum Sheet Under Plane Stress Loading

Compute the allowable load on the basis of bearing stress at the pin connection if the bar and the clev s members are made from 6061 t4 aluminum.

For an aluminum sheet under plane stress loading.

Now y 0 so y et 2 51 mpa 1 10 for an aluminum sheet under plane stress loading x 0 003 and y 0 001. Assuming that e is 68 gpa and 0 30 find z. Elastic plastic behavior of two types of steel sheets for press forming an aluminum killed mild steel and a dual phase high strength steel of 590 mpa ultimate tensile strength under in plane cyclic tension compression at large strain up to 25 strain for mild steel and 13 for high strength steel have been investigated. Elastoplastic investigations of aerospace aluminum are important in the development of an understanding of the possible cyclic transient effects and their contribution to the material performance under cyclic loading.

1 plane stress analysis which includes problems such as plates with holes fillets or other changes in geometry that are loaded in their plane resulting in local stress concentrations. Because dynamic conditions are very rare in conventional aluminum structures made of sheets and plates. Cyclic plasticity can occur in an aerospace aluminum component or structure depending on the loading conditions and the presence of external and internal discontinuities. The middle surface halfway between top and bottom surfaces remains unstressed.

At other points there are biaxial stresses in the plane of the plate. The pin is to be made from a stronger material. Ey 1 e y y ex 1 e x ey x. As shown in figure 3 17.

1 plane stress analysis which includes problems such. Now σy 0 so σy 51 mpa 2ρ1 10 for an aluminum sheet under plane stress loading εx 0 003 and εy 0 001 assuming that e is 68 gpa and ν 0 30 find εz. Plane stress and plane strain equations the two dimensional element is extremely important for. Ey 1 e σy νσy ex 1 e σx νεey ν σx.

The axes are usually chosen such that the x y plane is the plane in which the stresses act fig. The follow web pages contain engineering design calculators that will determine the amount of deflection and stress a flat plate of known thickness will deflect under the specified load and distribution. We will use this form for design bearing stress for aluminum in this book. 3 26 a rectangular bar is used as a hanger.

Non zero stress components acting in the x y plane. If the stress state at a material particle is such that the only non zero stress components act in one plane only the particle is said to be in plane stress. Flat plates stress deflection equations and calculators. Flat plate deflection calculator flat plate stress calculator the plate deflects.