Determine moment of this normal force - rectangular beam, Mechanical Engineering

Determine moment of this normal force - rectangular beam:

A rectangular beam contains a width of 100 mm and a depth of 200 mm. This is utilized as a simply supported beam & the maximum bending stress is restricted to 10 N/mm2. Then determine the following :

 (a) Entire normal force on the left bottom corner area of size 40 mm × 60 mm, and

(b) moment of this normal force around the neutral axis.


Maximum bending stress, σmax = 10 N/mm2

Normal force on the shaded area, left bottom corner  is following

708_Determine moment of this normal force.png

=   (10/100) × (40 × 60) × (40 + 30)

Here, A = Shaded area = 40 × 60 mm2

1894_Determine moment of this normal force1.png =   Centroid of shaded area through the neutral axis

= (100 - 60) + ( 60/2) = (40 + 30) = 70 mm

74_Determine moment of this normal force2.png


∴ Normal force on the partial beam section is following

 =   (10/100) × 2400 × 70 = 16800 N = 16.8 N

The partial area is subjected into a tensile force

∴ Normal force on partial beam section = 16.8 kN (tension)

Moment of the force around the neutral axis

= (σmax / ymax) × Is

Is = Moment of inertial of the shaded area around the neutral axis

=   (1/12)  × 40 × (60)3  + (40 × 60) × (70)2  = 1248 × 104  mm4

∴ Moment of normal force around the neutral axis

=  ( 10 /100) × 1248 × 104  = 1248 × 103  Nm = 1248 m

Posted Date: 1/21/2013 7:37:15 AM | Location : United States

Related Discussions:- Determine moment of this normal force - rectangular beam, Assignment Help, Ask Question on Determine moment of this normal force - rectangular beam, Get Answer, Expert's Help, Determine moment of this normal force - rectangular beam Discussions

Write discussion on Determine moment of this normal force - rectangular beam
Your posts are moderated
Related Questions
A simple Rankine cycle works between pressures 28 bar and 0.06 bar, the initial condition of steam being dry saturated. Determine the cycle efficiency, work ratio and specific st

difference between stress intensity factor and stress concentration factor

Type of strain: There are basically four type of strain 1. Tensile strain 2. Compressive strain 3. Volumetric strain 4. Shear strain

Refractory Materials These materials are made up of engineering ceramics that are quite expensive in their pure forms. Such materials are also complicated to form. Most indust

Embrittlement For use, at high strength, coupled with good notch toughness, all weld structure must  be Tempered low carbon martensite. Carbon and alloy steels having more than

in hydro turbine vaccum is present in casing or not? & if not then how suction is take place?

With the help of neat diagrams explain various parts of Cupola. Define its operation. How the thermal efficiency of Cupola calculated? What do you mean by Die casting process? G

Determine the concurrent forces: Four coplanar concurrent forces act at point and keep it at rest. These are mention in Figure. Determine the forces P and Q. Solution

Q. Corrosion resistance of the nickel-based alloys? The corrosion resistance of the nickel-based alloys can also be significantly affected by other variables such as velocity a

PRODUCTION PLANNING & CONTROL Assignment 2 Kid style, International, makes furniture designed for children. Its most popular items are large and small toy boxes. Demand for toy