The rigid bar ABCD of negligible weight is initially horizontal, and the steel rods attached at A and C are stress-free. The 20-kip load is then applied and the temperature of the steel rods is changed by AT. Find AT for which the stresses in the two steel rods will be equal. Use a= 6.5 x 10-6 /°F and E=29x10°. A= 0.5 in. 3 ft 20 kips 2 ft 2 ft -→ 4 ft 4 ft- A = 0.75 in.?

Q: A plate in equilibrium is subjected to uniform stresses along its edges with magnitude Oxx= 30 MPa…

A: Given data- A plate in equilibrium under uniform stress- σxx=30 MPa,σyy=30 MPa,σzz=0 MPa, Young's…

Q: Fc FA Fa Fc

A: According to given data Fa , Fb , Fc principal stresses are shown in three elements  We need to…

Q: The figure shows the state of stress on the element at a point on a member. Determine the stress…

A: Normal stress about x axis, Normal stress about y axis, Shear stress, Angle, To find: Stress…

Q: 3. The stress element is shown in the figure. Determine the equivalent stress according to the third…

A: Solution: Given: σx=40 MPaσy= 40 MPaτxy=60 MPa Equivalent stress according to third and fourth…

Q: Write the constitutive law for a material with linear elastic anisotropic behavior under mechanical…

A: The fundamental relationship that governs how a material will deform in response to applied loads is…

Q: Three round bars welded together axially loaded as shown. Find the normal are stress in each bar if…

A: Stress is defined as the force acting per unit area of a bar. The stress in a bar is directly…

Q: A steel bar is held by two fixed supports as shown in the figure and is subjected to an increase of…

A: Increase in temperature ∆T=100oC Coefficient of thermal expansion α = 11×10-6 /oC E=200 GPa, It is…

Q: I am still confused with the sign convention we were told that in rock mechanic the sigma y in…

A: This question is related to the Stresses transformation from Strength of the material from Civil…

Material Properties

Construction in civil engineering demands high strength, durability, and longevity. These targets can be achieved by better design and analysis, along with the correct choice of materials. Different materials have different properties and hence, they respond and performs differently under the various condition of external loadings. It is therefore a critical task of an engineer to select the right material based on the property that the material is supposed to function in real-time. When speaking about the property, there are different categories of material properties like chemical property, physical property, mechanical property, electrical property, magnetic property, thermal property, etc. These material properties form the basis of material selection in various applications.