Unit 19 Measurements of strain, stress, and coil mechanical properties

Oct 12, 2012

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19. Measurements of strain, stress, and coil mechanical properties 2. Outline. IntroductionStress-strain measurements devicesCapacitive gaugesStrain gaugesMeasurements of coil propertiesElastic modulusThermal contraction. 19. Measurements of strain, stress, and coil mechanical properti

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Unit 19 Measurements of strain, stress, and coil mechanical properties

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Stress and Strain

Stress and Strain. Lab 4. To understand how engineers compare different materials. To understand how a strain gage works. To understand important issues for data acquisition. To understand the need for experimental data. To understand some basic structural features of a bicycle.

526 views • 15 slides

Stress and Strain

Stress and Strain. Deforming Solids. Solids deform when they are subject to forces. Compressed, stretched, bent, twisted They can maintain or lose their shape. Linearly Elastic. For small deformations, solids follow Hooke’s law.

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Analysis of Stress and Strain

Analysis of Stress and Strain. Review:. - Torsional shaft. - Axially loaded Bar. t nt. p. s n. q. t xy. h. P. P. q. t yx. Questions: (1) Is there any general method to determine stresses on any arbitrary plane

956 views • 18 slides

Stress and Strain

Stress and Strain. Stress. Force/Area Pressure is one form of Stress Units: Pascals (1 bar = 1 atm = 100,000 Pa) Normal Stress: Perpendicular to surface Compression vs. Tension Shear: Parallel to Surface. Stress. Hydrostatic Stress (usually compressional) Uniform in all directions.

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Stress and Strain

Stress and Strain. Lab 4. To understand how engineers compare different materials. To understand how a strain gage works. To collect and analyze experimental data. Objectives. Strain: . Stress:. Hooke’s law:. Where: E = Modulus of Elasticity s = stress e = strain.

751 views • 15 slides

Unit 19 Measurements of strain, stress, and coil mechanical properties

Unit 19 Measurements of strain, stress, and coil mechanical properties. Paolo Ferracin and Ezio Todesco European Organization for Nuclear Research (CERN) Soren Prestemon and Helene Felice Lawrence Berkeley National Laboratory (LBNL). Outline. Introduction

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FORCE-STRAIN-STRESS measurements

FORCE-STRAIN-STRESS measurements. 9.1 - INTRODUCTION. Strain is the amount of deformation of a body due to an applied force. More specifically, strain is defined as the fractional change in length.

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Analysis of Stress and Strain

Analysis of Stress and Strain. Review:. - Torsional shaft. - Axially loaded Bar. t nt. p. s n. a. q. t xy. h. P. P. q. t yx. Questions: (1) Is there any general method to determine stresses on any arbitrary plane

518 views • 18 slides

Stress and Strain

Stress and Strain. When the forces discussed in our last lesson act on a material, the material is said to be under stress . If a material is being stretched, it is under tensile stress . If a material is being squeezed, it is under compressive stress .

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Stress and Strain

Stress and Strain. Solid Deformation. Solids deform when they are subject to forces. Compressed, stretched, bent, twisted They can maintain or lose their shape. The ratio of the force to the displacement is a constant. Hooke’s Law. F. D x. Stress. A force on a solid acts on an area.

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Mechanical Properties of the NCSX Modular Coil Conductor

Mechanical Properties of the NCSX Modular Coil Conductor. 14 January 2004 Leonard Myatt Myatt Consulting, Inc. Q: What is the Modular Coil Conductor Elastic Modulus?. CTD Mechanical Tests of Insulated Single Modular Coil (ISMC). ANSYS Twisted Cable Model (Glass

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Transformations of Stress and Strain

6. Transformations of Stress and Strain. Introduction Transformation of Plane Stress Principal Stresses Maximum Shearing Stress Example 7.01 Sample Problem 7.1 Mohr’s Circle for Plane Stress Example 7.02 Sample Problem 7.2 General State of Stress

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Transformations of Stress and Strain

7. Transformations of Stress and Strain. The most general state of stress at a point may be represented by 6 components,. Introduction. Same state of stress is represented by a different set of components if axes are rotated.

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III. Strain and Stress

III. Strain and Stress. Strain Stress Rheology. Reading Suppe , Chapter 3 Twiss&Moores , chapter 15. http://www.alexstrekeisen.it/english/meta/deformedoolite.php.

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Shear Stress and Strain

Shear Stress and Strain. Shear Stress, Shear Strain, Shear Stress and Strain Diagram. Shear Stress. V: shear load ( the force is acted on the center of designated area) A: area of the plane. Shear Stress: Load (V). Shear Stress: pin and rivet. V A = 0.5 F A. Shear Stress: pin and rivet.

3.05k views • 27 slides

HQ test at CERN: strain and stress measurements

HQ test at CERN: strain and stress measurements. H. Bajas, A. Chiuchiolo. OUTLINE. Summary of the HQ01-e mechanics during its service life Detail analysis of the stress/strain behaviour during operation. OUTLINE. Summary of the HQ01-e mechanics during its service life

342 views • 16 slides

Transformations of Stress and Strain

7. Transformations of Stress and Strain. Introduction Transformation of Plane Stress Principal Stresses Maximum Shearing Stress Example 7.01 Sample Problem 7.1 Mohr’s Circle for Plane Stress Example 7.02 Sample Problem 7.2 General State of Stress

744 views • 40 slides

Stress and strain

Stress and strain. Strain. Both the stress and the strain tensor are symmetric. Stress and strain (again). Both the stress and the strain tensor are symmetric. Elastic Constants. Symmetry:. Thermodynamics:. Lame’s parameters. Lame’s parameters. Stress and Strain. Stress and Strain.

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Strain Measurements

Strain Measurements. Module goals… Introduce students to operating principles behind strain gauges Discuss practical issues regarding strain gauge installation and usage. Understand how bridge circuits are used to determine changes in gauge resistance --- and hence, strain.

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Normal Strain and Stress

Normal Strain and Stress. Normal Strain and Stress, Stress strain diagram, Hooke’s Law. Strain. When a body is subjected to load, it will deform and can be detected through the changes in length and the changes of angles between them.

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III. Strain and Stress

III. Strain and Stress. Basics of continuum mechanics, Strain Basics of continuum mechanics, Stress. Reading Suppe, Chapter 3 Twiss&Moores, chapter 15 Additional References : Jean Salençon, Handbook of continuum mechanics: general concepts, thermoelasticity, Springer, 2001

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III. Strain and Stress

III. Strain and Stress. Strain Stress Rheology. Reading Suppe , Chapter 3 Twiss&Moores , chapter 15. Photomicrograph of ooid limestone . Grains are 0.5-1 mm in size. Large grain in center shows well developed concentric calcite layers.

662 views • 62 slides

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