Shear in Rubber Apparatus

Slides:

Advertisements

Similar presentations

FORCE MEASUREMENT.

Advertisements

Normal Strain and Stress

1 Classes #3 & #4 Civil Engineering Materials – CIVE 2110 Torsion Fall 2010 Dr. Gupta Dr. Pickett.

Exp.4: Rubber in Shear Apparatus Eng. Ahmed Y Manama Eng. Saeed A Shurab Eng. Ahmed Al Afeefy.

How and Where Do Earthquakes Occur?

ECIV 520 A Structural Analysis II

1 CM 197 Mechanics of Materials Chap 10: Strength of Materials Strains Professor Joe Greene CSU, CHICO Reference: Statics and Strength of Materials, 2.

Mechanics of Materials II

Mechanics of Materials II

Mechanics of Materials Goal:Load Deformation Factors that affect deformation of a structure P PPP Stress: intensity of internal force.

Shear Forces & Bending Moments Shear & Moment Diagrams

CHAPTER OBJECTIVES Show relationship of stress and strain using experimental methods to determine stress-strain diagram of a specific material Discuss.

PS fork equipped with 8 semiconductor (4 by arm) strain gauges.

7.2 Shear and Moment Equations and Diagrams

Hooke’s Law and Modulus of Elasticity ( )

Objectives Students will be able to label a stress-strain diagram correctly indicating. Ultimate stress, yield stress and proportional limit. Students.

Shrieking Rod Prof. Chih-Ta Chia Dept. of Physics NTNU.

Poisson’s Ratio For a slender bar subjected to axial loading:

Chapter 12 Static Equilibrium and Elasticity. Static Equilibrium Equilibrium implies that the object moves with both constant velocity and constant angular.

Chapter 12 Static Equilibrium and Elasticity. Introduction Equilibrium- a condition where an object is at rest OR its center of mass moves with a constant.

Poisson’s Ratio For a slender bar subjected to axial loading:

MECHANICAL TESTING.

Mechanical Properties of Materials

Strength of Materials Malayer University Department of Civil Engineering Taught by: Dr. Ali Reza Bagherieh In The Name of God.

VERIFICATION OF RECIPROCAL THEOREM AND YOUNG’S MODULUS OF DIFFERENT MATERIALS BY S.HARSHA M.SUMANTH G.SUMANTH KUMAR G.RAVI TEJA.

Chapter Objectives Understand how to measure the stress and strain through experiments Correlate the behavior of some engineering materials to the stress-strain.

Elasticity Yashwantarao Chavan Institute of Science Satara Physics

A NOVEL METHOD OF GENERATING HYDROELECTRIC POWER USING LARGE COLLAPSABLE BALLOON Dr P Uday Prashant.

1. Two rods, one of nylon and one of steel, are rigidly connected as shown in Fig. P.1.2. Determine the stresses and axial deformations when an axial load.

PLASTIC ANALYSIS OF BEAMS - SANDEEP DIGAVALLI. AT A GLANCE OF THIS TOPIC  BASIS OF PLASTIC THEORY  STRESS-STRAIN CURVE OF PLASTIC MATERIALS  STRESSES.

Stress and Strain – Axial Loading

Structural Considerations for Bridges

CHAPTER OBJECTIVES Show relationship of stress and strain using experimental methods to determine stress-strain diagram of a specific material Discuss.

Mechanical Engineering and Solid Mechanics

STRENGTH OF MATERIALS UNIT – III Torsion.

Stress and Strain – Axial Loading

Poisson’s Ratio For a slender bar subjected to axial loading:

– SOLID MECHANICS S.ARAVINDAN Lecturer

Stress and Strain – Axial Loading

Stress – Strain Relationships Credit: Modified from:

Elasticity Yasser Assran 27/10/2015.

Chapter 7 Deforming Solids.

Tensile Testing of Aluminum Alloy

Chapter 3 Mechanical Properties of Materials

Manufacturing Systems

BDA30303 Solid Mechanics II.

Poisons Ratio Poisons ratio = . w0 w Usually poisons ratio ranges from

Poisson’s Ratio For a slender bar subjected to axial loading:

Ch. 2: Fundamental of Structure

Implementation of 2D stress-strain Finite Element Modeling on MATLAB

Eng. Ahmed Al-Afeefy Eng. Ibrahim Aljaish

Tutorial in Mechanical Properties

Chapter 12 Equilibrium and Elasticity

Lecture 9 – Deformation and Damage

Chapter 12 Equilibrium and Elasticity

LECTURE-I Introduction Some important definitions

Mechanical Properties: 1

Exp.3: Extension of Wires

Introduction to Structural Member Properties

Poisson’s Ratio For a slender bar subjected to axial loading:

Lecture-07 Elastic Constants MODULUS OF ELASTICITY (E)

Elastic Deformation: Stress, Strain and Hook’s Law

PDT 153 Materials Structure And Properties

Simple Stresses & Strain

CHAPTER OBJECTIVES Show relationship of stress and strain using experimental methods to determine stress-strain diagram of a specific material Discuss.

Chapter 12 Equilibrium and Elasticity

Forging new generations of engineers

Mechanical Properties Of Metals - I

Chapter 12 Equilibrium and Elasticity

Presentation transcript:

Shear in Rubber Apparatus Exp. 3

Introduction Rubber blocks in shear force are often used on engine and in equipment mounting to isolate vibrations. They do this by absorbing shock energy by deforming. This deformation leads to a decrease in cross-section as the block lengthens, an effect described by Poisson's Ratio.

Shear Modulus (Modulus of Rigidity) The shear modulus is the elastic modulus we use for the deformation which takes place when a force is applied parallel to one face of the object while the opposite face is held fixed by another equal force. The bigger the shear modulus the more rigid is the material since for the same change in horizontal distance (strain) you will need a bigger force (stress). This is why the shear modulus is sometimes called the modulus of rigidity.

Objective Measure the shear deformation of the block. Determination of modulus of rigidity .

Equipment A rubber block 150 x 75 x 25mm is bonded to two aluminum alloy plates.

Shear Modulus (Modulus of Rigidity)

Results 10 20 30 40 50 60 70 80 90 100 110 120 Load (N) Dial Gauge (mm) Deflection 10 20 30 40 50 60 70 80 90 100 110 120

Questions Plot the load against deflection Draw the "best fit" straight lines through each set of points and determine the gradients. Then compute the modulus of rigidity (G). Where the results are linear? Would greater or lesser deflection improve linearity?