Posts

What is the Elongation of a Bar by its Self Weight?

A bar suspended freely from a fixed end is subjected to an elongation dlwhich is caused by its own weight. Here, the value of elongation of a freely suspended bar is determined.

 Elongation of a Bar by its Self Weight Consider a bar AB that is freely suspended, with one end fixed. The length of the bar be 'L', area of cross-section be 'A', 'E' be the modulus of elasticity and 'w' is the weight per unit volume of the bar material.
Consider a small strip of thickness'dx' at a distance 'x' from the free end 'B'. Step 1: Weight of the bar of the length 'x'  Let the weight of the bar of length 'x' be P. Then,
P = Specific weight x Volume = Specific weight x area x thickness = w . A.x
This implies, on the strip of length 'x' a weight is acting downwards whose value is P = wAx. Step 2: Stress on the element 'dx' The stress on the element 'dx' is given by  = Weight acting on the element / Area of …

What is Stress and Strain?

Alignment of Canals - Canal Irrigation

Manufacture of Bricks for Masonry Construction

Composition of Bricks in Building Construction

Macroscopic and Microscopic Approach in Thermodynamics

Reconnaissance Survey and Index Sketch in Chain Surveying

What is Chain Surveying? Principles, Well-Conditioned and Ill-Conditioned Triangles

What is Thermodynamics?

Total Volume and Weight of Soil Mass in Geo technical Engineering

Difference between Characteristic Compressive Strength and Target Mean Strength

Foundation in Building Construction - Purpose, Features

Factors Affecting Selection of Construction Equipment