Stresses in thin walled pressure vessels i l.jpg
This presentation is the property of its rightful owner.
Sponsored Links
1 / 19

Stresses in Thin-walled Pressure Vessels (I) PowerPoint PPT Presentation


  • 1260 Views
  • Uploaded on
  • Presentation posted in: General

Stresses in Thin-walled Pressure Vessels (I). (Hoop Stress). (Longitudinal Stress). Stresses in Thin-walled Pressure Vessels (II). Stress State under General Combined Loading. Plane Stress Transformation. Mohr’s Circle for Plane Stress. Principal Stresses. Maximum Shear Stress.

Download Presentation

Stresses in Thin-walled Pressure Vessels (I)

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Stresses in thin walled pressure vessels i l.jpg

Stresses in Thin-walled Pressure Vessels (I)

(Hoop Stress)

(Longitudinal Stress)


Stresses in thin walled pressure vessels ii l.jpg

Stresses in Thin-walled Pressure Vessels (II)


Stress state under general combined loading l.jpg

Stress State under General Combined Loading


Plane stress transformation l.jpg

Plane Stress Transformation


Mohr s circle for plane stress l.jpg

Mohr’s Circle for Plane Stress


Principal stresses l.jpg

Principal Stresses


Maximum shear stress l.jpg

Maximum Shear Stress


Mohr s circle for 3 d stress analysis l.jpg

Mohr’s Circle for 3-D Stress Analysis


Mohr s circle for plane strain l.jpg

Mohr’s Circle for Plane Strain


Strain analysis with rosette l.jpg

Strain Analysis with Rosette


Typical rosette analysis l.jpg

Typical Rosette Analysis

εmax

εa = εx

εb = εx/2 + εy/2 + γxy/2

εmin

εc = εy

gmax

εa = εx

εmax

εb = εx/4 + 3εy/4 + γxy/4

εmin

gmax

εc = εx/4 + 3εy/4 - γxy/4


Stress analysis on a cross section of beams l.jpg

Stress Analysis on a Cross-section of Beams


Stress field in beams l.jpg

Stress Field in Beams

Stress trajectories indicating the direction of principal stress of the same magnitude.


Re visit of pressure vessel stress analysis l.jpg

Re-visit of Pressure Vessel Stress Analysis


Relations among elastic constants l.jpg

Relations among Elastic Constants


Constitutive relations under tri axial loading l.jpg

Constitutive Relations under Tri-axial Loading


Dilatation and bulk modulus l.jpg

Dilatation and Bulk Modulus

For the special case of “hydrostatic” loading -----

σx = σy = σz = –p

where DV/V is called Dilatation or Volumetric Strain.

Define Bulk Modulus K as


Failure criterion for ductile materials yielding criterion l.jpg

Failure Criterion for Ductile Materials(Yielding Criterion)

σ1

σ1

|σ1| = σY

σ2

|σ2| = σY

σ2


Comparison of yielding criteria l.jpg

Comparison of Yielding Criteria

Tresca Criterion

(Max. Shear Stress)

|σ1| = σY

|σ2| = σY

|σ1 – σ2| = σY

Von Mises Criterion

(Max. Distortion Energy)


  • Login