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Spring Testing: Determining Spring Rate (K Constant), Schemes and Mind Maps of Material Engineering

Hill CollegeMaterial Engineering

This lab report details an experiment conducted to determine the spring rate (k constant) of a spring using a spring testing machine. The experiment involves applying incremental loads to the spring and measuring the corresponding displacements. The data is then plotted on a graph, and the slope of the line between the load and displacement points provides the spring rate. The report also includes calculations and a graph to visualize the results. This document could be useful for students studying mechanics of materials, particularly in the context of spring behavior and testing. The experiment covers topics such as hooke's law, spring stiffness, and the relationship between force and displacement. By analyzing this report, students can gain a deeper understanding of the principles and techniques involved in spring testing and characterization.

Typology: Schemes and Mind Maps

2022/2023

Uploaded on 06/08/2023

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LAB REPORT
ME-205L Mechanics of Materials Lab
HITEC UNIVERSITY
Heavy Industries Taxila Education City
Department of Mechanical Engineering
4th SEMESTER
SECTION: B G-2
GROUP MEMBERS:
Name: Registration No:
1. Muhammad Hamza Amjad 21-ME-100
2. Muttaqi 21-ME-102
3. Hammad Ahmad 21-ME-113
4. Muhammad Abdul Munim 21-ME-118
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LAB REPORT

ME-205L Mechanics of Materials Lab

HITEC UNIVERSITY

Heavy Industries Taxila Education City

Department of Mechanical Engineering

4 th^ SEMESTER SECTION: B G- GROUP MEMBERS: Name: Registration No:

  1. Muhammad Hamza Amjad 21-ME-
  2. Muttaqi 21-ME-
  3. Hammad Ahmad 21-ME-
  4. Muhammad Abdul Munim 21-ME-

Experiment No.4 Date: 7 March 2023 Roll No: 21-ME-

Objective:

Spring Testing Machine (K Constant).

Picture:

Apparatus:

Spring Testing Machine.

Procedure:

  1. Set the zero point of the machine by adjusting the indicator so that it reads zero when the spring is not under any load.
  2. Apply a small load to the spring and measure the corresponding displacement using a displacement sensor. Record this data in a table.
  3. Increase the load in small increments and measure the corresponding displacement for each load. Record the data in the table.
  4. Plot the load vs. displacement data on a graph. The slope of the line between the load and displacement points will give the spring rate.
  5. Continue applying loads until the maximum load capacity of the spring is reached. Record this value.
  6. Remove the spring from the machine and measure its free length and diameter.
  7. Calculate the spring rate by dividing the maximum load capacity by the spring's free length and the deformation characteristics by analyzing the graph.

𝞌

7.4 × 10ିଷ^

𝞌

Graph:

0 5 10 15 20 25 30 7.5x10^-4 1.06x10^-3 2.65x10^-3 4.55x10^-3 7.4x10^-3 0.

K x

FORCE