Rheology - PowerPoint PPT Presentation

Loading...

PPT – Rheology PowerPoint presentation | free to view - id: e49fc-Nzk1Y



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Rheology

Description:

Rheology ???????????????????????????? (Deformation) ????????? (Flow) ??????? ... Rheology ?????? Parameter ???? ? ????? force, deformation, and time ... – PowerPoint PPT presentation

Number of Views:1287
Avg rating:3.0/5.0
Slides: 16
Provided by: coursewa
Category:
Tags: rheology

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Rheology


1
Rheology
  • ?? 341 ???????????????????????????????????

2
Quiz
?????????????????? 1. Bioyield ????????????? ?
2. Modulus of Elasticity ????????????
Stress (MPa)
Strain ()
3
Basic concept Definition
  • Rheology ????????????????????????????
    (Deformation) ????????? (Flow) ???????
  • ????????? Mechanical properties ????????????
    Deformation ???? ?????????????????? Rheological
    properties
  • Rheology ?????? Parameter ???? ? ????? force,
    deformation, and time
  • ?????????????????????? Rheology ??????
    Time-dependent stress and strain behavior, Creep,
    Stress relaxation and Viscosity

4
Basic concept Definition
5
Basic concept Definition
6
ASTM definition
  • Strain
  • Linear (tensile or compression) strain
  • Axial strain
  • Transverse strain
  • Shear Strain
  • True strain ln(dL/L0)
  • Macro/Micro-strain
  • Stress
  • Nominal Stress
  • Normal stress
  • Tensile stress
  • Compressive stress
  • Shear stress
  • Torsional Stress
  • True stress
  • Fracture stress

7
ASTM definition
  • Rigidity (shear modulus)
  • Isotropic
  • Homogeneous
  • Stress relaxation
  • Creep
  • Viscosity
  • Kinematic viscosity
  • Newtonian liquid
  • Non-Newtonian liquid
  • Apparent viscosity
  • Thixotropic fluids
  • Rheopectic fluids

8
(No Transcript)
9
(No Transcript)
10
(No Transcript)
11
ASTM definition
12
Stress-strain curve for a 15.2 mm long by 10.0 mm
diameter sample of Red Delicious apple loaded at
a strain rate of 82/s
13
(No Transcript)
14
ASTM definition
  • Compressive strength
  • Elastic Limit
  • Modulus of elasticity
  • Initial tangent modulus
  • Tangent modulus
  • Secant modulus
  • Chord Modulus
  • Poissons ratio
  • Proportional limit
  • Shear strength
  • Tensile strength
  • Yield point
  • Yield strength
  • Pressure
  • Deformation
  • Bioyield point
  • Rupture point
  • Bioyield strength
  • Stiffness
  • Elasticity
  • Plasticity
  • Toughness
  • Mechanical hysterisis

15
(No Transcript)
About PowerShow.com