## Strength of Materials |

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Page 30

Working Stress and

stress the material has when under load. It is almost synonymous with allowable

stress, which is the maximum safe stress a material may carry. In actual design ...

Working Stress and

**Factor of Safety**. The working stress is defined as the actualstress the material has when under load. It is almost synonymous with allowable

stress, which is the maximum safe stress a material may carry. In actual design ...

Page 397

Determine the safe central load, using a

psi. Ans. P = 2770 lb 1104. A square steel bar is to support a load of 20,000 lb on

a length of 10 ft. Assuming rounded ends, determine the length of each side.

Determine the safe central load, using a

**factor of safety**of 2 and E = 10.3 X 106psi. Ans. P = 2770 lb 1104. A square steel bar is to support a load of 20,000 lb on

a length of 10 ft. Assuming rounded ends, determine the length of each side.

Page 427

Using a

efficiency of the joint, and the maximum internal pressure that can be carried in a

5-ft-diameter boiler for which this joint is the longitudinal seam. Fig. 12-7. Solution

: ...

Using a

**factor of safety**of 5, determine the strength of a repeating section, theefficiency of the joint, and the maximum internal pressure that can be carried in a

5-ft-diameter boiler for which this joint is the longitudinal seam. Fig. 12-7. Solution

: ...

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### Common terms and phrases

acting actual allowable angle applied assumed axes axis beam shown bending bending moment cantilever carries caused centroid circle CN CN column compressive compressive stress compute concentrated consider constant couple cross section deflection deformation Determine developed diameter direction distance distributed distributed load effect elastic curve element equal equation equivalent expressed flange flexural stress force formula ft-lb given gives Hence horizontal ILLUSTRATIVE inertia lb/ft length limit load loaded as shown material maximum method midspan moments negative neutral axis obtain occurs plane plate positive Prob PROBLEMS produce reaction reference relation resisting respect restrained resultant rivet segment shear diagram shearing stress shown in Fig shows simply supported slope Solution Solve span steel strain strength supported Table tangent tensile thickness varies vertical wall weight weld yield zero