Essays on Shear Stress

Q1. A 200mm diameter pipeline divides into two smaller pipelines, one being 100mm in diameter and the other being 150mm in diameter. If the velocity in the 100mm pipe is 0.3m/s and that in the 150mm is 0.6m/s, calculate the flowrate in litres/s and the velocity in m/s in the 200mm pipe. [ 13 l/s, 0.413m/s] Solution: Flow Rate = (pi/4)(0.1)2(0.3) + (pi/4)(0.15)2(0.6) = 0.01296 cubicmeters/sec = 12.96 l/sec. (ans.). Velocity = (Flow Rate)/(Area) = [0.01296]/[(pi/4)(0.1)2] = 0.4125 m/s. Q2. If the specific volume of water is 0.001251 m3 /kg. calculate:

The mass and weight ...

Abstract

This lab study was undertaken to analyze the effects of torque forces and shear modulus of rigidity on three circular solids namely, half-hard brass (60% Cu and 40% Zn), 0.1% and 0.4% carbon steel. This was done by subjecting the samples to a shearing stress and by noting down its angular displacement. The maximum torque of each sample was calculated and compared. Their polar moment of inertia was also calculated to assist in analysis. The value of shear modulus of rigidity of each of the samples was determined using a graph which related torque and angular displacement. It was ...

Introduction

Field density testing is significant for assessing the soil properties of a site identified for a project. The assessment of soil property done through field density testing is aimed a verifying that the soil contained the required properties for the type of project to be constructed at the identified site (Thiers and Donovan 45). This lab uses the Sand Cone Method to verify the compaction of fill material and determine if the soil meet the required compaction with a design unit weight of 2,000 kg/m3. The aim of the experiment was to determine the dry unit weight, to ...

Abstract

Land and rockslides are natural disasters that threaten people living in the Sultanate of Oman. In this paper, the fundamentals of disaster management are identified from their causes. First, the aspect of slope stability is covered. The involvement of this information follows the need to appreciate the vulnerability of mountainous regions to mass movement. The causes of mass movement are also explained. Further, the risks of rock and landslides are expanded with the intention of directing the focus of the paper. To be objective, the paper progresses to a review of the measures employed by the government of Oman ...

- Introduction A simple multi-storey residential unit at Suresh Nagar, Gwalior in India had been chosen. It had been designed by the team of design campus comprising of architects, engineers and designers. Figure 1: Front-side view of the multi-storey building

The total area of the ground floor plan is 2400 sq. ft. It is a G+3 structure i.e. it consists of four floors including the ground floor. The structure is a reinforced framed-structure supported on the column-beam frame. The lowermost floor that is partially under the ground level has been allotted for parking of vehicles.

The ...

1. When the load on the specimen increases, the compression on the specimen increases. The longitudinal strain increases by increasing of the load value. The young’s modulus gets increases with the longitudinal strain. The load compresses because of the load. 2. When a compressive force acts on the specimen, two types of stain occur one is lateral strain and another strain is the axial strain. The specimen undergoes lateral strain to some extent. The lateral strain occurs due to the overload applied on the specimen, but the specimen undergoes more longitudinal strain than the lateral strain. The specimen ...

Introduction

Mechanics is a branch of physical science that deals with moving and stationary bodies influenced by forces. It is divided into two branches called dynamics and statics. Dynamics deals with moving bodies while statics deals resting bodies Mechanics also has a subcategory called fluid mechanics. Fluid mechanics is the science concerning the behavior of fluids. It could be fluid statics when it tackles about the body at rest. On the other hand, it could be fluid dynamics when the fluid body being studied is in motion. Fluid mechanics is a study regarding the behavior of material that can bend and ...

Verification of Bernoulli’s Equation

Bernoulli’s Equation is among the most crucial equations in fluid mechanics. The experiment led us to conclude that this equation is an example of the initial law of Thermodynamics. In addition, the experiment verified the application of the equation to the steady state flow of an inviscid and incompressible fluid. As the fluid flows in a pipe, the changes in pressure, velocity, and elevation should be consistent in order to satisfy the equation. The restrictions in the application of Bernoulli’s Equation include a steady flow, negligible friction losses, and constant density. Our calculations also verified Bernoulli’s Equation since ...

TORSION LABORATORY

Objective The objective of this experiment was to determine the relationship between load and angular deflection of a mild steel bar, the maximum shear stress applied to the bar and its modulus of rigidity.

Apparatus

- Torsion test rig - Weight hangers - Masses - Rule - Calipers

Procedure

- A distance L was set between two angle indicators. Then the fixings were tightened to make sure that it was not moving. The indicators were set to zero on both the scales. - The effective radius of the pulley and the diameter of the steel shaft ...