Rick's Structural Integrity Menu Page

The links below will download a pdf file containing the indicated subject matter. The items are focused around certain major topics in the structural integrity discipline. There is a lead item for each topic in which I give a personal view of what knowledge might constitute the minimum expectation for a professional in that area. This is purely my opinion and is not endorsed by any other persons or organisations. Each lead item is followed by a series of links which provide brief tutorials in subjects falling within that topic area. The standard of many of these tutorials is well beyond the minimum expectation.

If you spot any errors please do let me know.

To contact me go here

Under continual re-construction

Expectations in Strength of Materials
- T72S01 Tutorial notes and homeworks, with and without answers
- Formulation of 3D Elasticity and Compatibility
- Formulation of 2D Elasticity and the General Axisymmetric Solution
- Derivation of the Compatibility Equations in Polar Coordinates
- Proof of the Convexity and Normality rules in plasticity
- Proof of the Lower and Upper Bound Theorems
- Derivation of Collapse Solutions (simple examples). Tresca solution for thin pipe under pressure and bending here
- A lower bound collapse solution for a Half-Pipe under end load and bending
- Hole in Plate with Temperature Distributions: Does the Hole Change Size?
- Semi-Infinite Plate with an applied Point Load: Exact analytic solution via a complex Airy function
Expectations in Basic Finite Element Analysis
- Derivation of the Nodal Forces Equivalent to Pressure for Quadratic Isoparametric Elements
Expectations in Pipework and Pressure Vessel Design Codes
Expectations in Low Temperature Fracture Mechanics
T73S02 Tutorial notes and homeworks, with and without answers
Derivation of the LEFM Crack Tip Fields
Derivation of the Heaton SIFs for very deep cracks: (1)ECP and Circumferential Cracks
Derivation of the Heaton SIFs for very deep cracks: (2)Axial Cracks
The Proper Derivation of the Vector J Integrals
The Relation Between G, J and the SIFs: Energy Release Rate and What are J2 and J3 anyway?
What is Stable Tearing Really?
Why does fatigue crack growth follow a Paris Law?
Why is there a Fatigue Crack Growth Threshold?
What is the energy release rate / stress intensity factor relationship for anisotropic materials?
Expectations in Creep-Fatigue Crack Growth

T73S03 Tutorial notes and homeworks, with and without answers
Derivation of the R5V7 Style C(t) Estimation Formulae with plasticity corrections, secondary loads and primary creep
My argument that C(t) control in a ccg test puts the tail above the trend line: A Tale of Two Tails
Justification of inserting C(t) into a ccg law derived in C* control: the expected ccg law under C(t) control derived from continuum damage mechanics
Expectations in Creep-Fatigue Crack Initiation

T73S04 Tutorial notes and homeworks, with and without answers
Powerpoint presentation on the use of Probabilistics in R5V2/3 Assessment, December 2012
Full report on the application of Probabilistics in R5V2/3 Assessments, January 2014
Peter Holt's Notes on PDFs, December 2012
Illustration of a possible hysteresis cycle construction methodology for Interacting Cycles (not R5 approved)
A possible methodology for incorporating Residual Stresses in R5V2/3 assessments (not R5 approved)
Calculating stress drop and creep strain by Integrating the Relaxation Equation assuming strain hardening (even when the deformation law is formulated in terms of time)
The Effective Elastic Follow-Up Factor, Z for a primary plus a secondary load
A Crude Model for Crack Initiation due to Small Bore Branch Thermal Fatigue caused by condensate refluxing in superheated steam pipework systems
Expectations in Creep Rupture

T73S06 Tutorial notes and homeworks, with and without answers
Derivation of the Bree Diagram
An algorithm for calculating a Mean Effective Creep Temperature for 316ss based on deformation

Random things...

So you thought that Normal Modes of Vibration were orthogonal? No, they are not.

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