Peterson’s Stress Concentration Factors

Big question.  And as far as I’m concerned there is a simple answer.  Yes.  Therapy may work very effectively.   I may listen you now though, rather rightly, shouting at your monitor, “but you’re a therapist so you’re bound to say that” so let’s see if I may convince you further.

As a therapist my starting place has to be my own experience.  I witness clients making positive changes in their lives systematically and I have also experienced these changes in my own life.  Sometimes it may take weeks for that “aha” moment to arrive, but when it does that moment can, literally, be life changing.  It was these moments, these perceptivenesses into my own ways of thinking that stimulated my interest in psychotherapy.  I was capable to use this noesis to live my life differently, to create better relationships and to change my behaviour for the better. Now, a heap of years later, I have the privilege of being let into other people’s lives to support and guide them whilst they thoroughly question their lives and make positive change.

My next step is a quick trawl around the internet.  The internetsite talkingcure gives a heap of examples of where exploration supports the idea that therapy is effective.  Most of this exploration has been carried out by health services of countries around the world to see if they are getting their monies worth out of their counselling services (money is a outstanding motivator for research!).

The following studies are just a couple of the examples included on the site:

  • Chiles et al (1999) found that psychological services scaled down medical disbursements in persons who requires medical care undergoing surgery and those with a history of over utilization.  On average, there was a 20% saving, even when the cost of supplying the services was subtracted from the savings.
  • Research* showed that therapy carried out with men who batter their wives proved highly successful with 60% of men not reoffending within the thirty month follow up amount of time and the wives of these men sentiment “very safe” in 83% of cases.

Smith and Glass (1977) carried out exploration into the effectiveness of dissimilar types of therapy.  Results of closely 400 controlled evaluations of psychotherapy and counselling were coded and integrated statistically. The conclusions provided convincing proof of the efficacy of psychotherapy. On the intermediate they concluded that the typical therapy client was better off than 75% of untreated individuals.  More interestingly, they found that the type of therapy received by the client had little bearing on the rate of success.  This is further proof for the idea that it is what happens amongst the client and the therapist, the kinship that forms, that is the settling factor for a successful outcome.

Martindale (1978) questions the validity of exploration into the effectiveness of psychotherapy and states that answering a question such as “does therapy work” is totally unlikely as there are too some variables.  All clients are different, all therapists are different. He argues that a therapist may be effective for one client but inefficient for another.  It’s easy to see the logic of this argument and how we recognise which therapist is best for us will be the subject of another entry at a later date.

So where have we got to so far?  Both exploration and personal experience support the idea that therapy may be useful.  I be grateful for that I have only given proof of three exploration studies but I invite you to follow my links and check out my references for dozens of studies that conclude therapy is effective.

This does not mean nevertheless that we need to run to our nearest therapist and sign up for a course of treatment!  Going into therapy is a very personal and ofttimes very frightening step for galore to take.  You take that step when you are ready to engage with the procedure and feel in your heart that it’s right for you.  I do not forget my initial session even to this day.  I arrived fifteen minutes early and “cased” the joint to see if there was any person around who would spot me going in. I gravely considered turning around and going back home!  Eventually I plucked up the courage, knocked on the door and therein started out this journey.

I think that initial step of seeking aroused aid from others may be more difficult for men than for women. This is backed up by the suicide figures for each sex where in 2008 where per 100000 of the UK population, 17.7 men committed suicide equated to just 5.4 women (age standardised rates taken from http://www.statistics.gov.uk ).  Once more, I’m sure this will feature as a subject in my future writings.

So, to conclude, I would say that yes, therapy does work.  It may be an effective means to resolve troubles as wide ranging as anxiety, stress, sexual identity, depression, lack of purpose, jealousy and a multitude of other issues that we may have whirling through our heads at queer times in our lives.  So when you’re ready, if you want to, pick up a phone and make that basi appointment.

References

Chiles, J. et al. (1999). The affect of psychological interventions on medical cost offset: a meta-analytic review. Clinical Psychology, 6(2), 204-220.

Martindale, C. “The Therapist-as-Fixed-Effect Fallacy in Psychotherapy Research”. Journal of Consulting and Clinical Psychology 1978, Vol. 46, No. 6, 1526-1530

*Peterson, K. (July 27, 1988). Programs support men unlearn violence. USA Today, p. 1.

Smith, M. and Glass, G. “Meta-Analysis of Psychotherapy Outcome Studies”.  American Psychologist. September 1977. p752-760.


Petersons Stress Concentration Factors

Peterson’s Stress Concentration Factors establishes and maintains a scheme of data classification for all of the apps of stress and strain analysis and expedites their synthesis into CAD applications. Substantially revised and completely updated, this book presents stress concentration constituents both graphically and with formulas. It likewise employs computer-generated art in it is portrayal of the respective relationships amongst the stress components affecting machines or structures. These charts provide a visual representation of the machine or structure beneath contemplation as well as graphs of the respective stress concentration components at work. They may be effortlessly accessed thru an illustrated table of contents that permits identification based on the geometry and loading of the emplacement of a factor.

For the new third edition, new material will be added covering finite element analyses of stress concentrations, as well as effective computational design. The book explains how to optimize shape to circumvent stress concentration difficulties and how to achieve a well-balanced design of structures and machines that will result in scaled down costs, lighter products, and bettered performance.

From the PublisherA finish revision of the definitive work on the subject of stress concentration. This new edition updates all of the graphics with computer-generated art which incorporates both a visual representation of the product/structure beneath thoughtfulness along with the graph of the stress concentration factors. Contains extensive material on how to carry out computer analyses for stress concentrations and how to design to reduce them. A “quick-finder” feature has been provided for locating often times used charts.From the Back Cover

The definitive guide to stress concentration, newly revised and updated

Stress concentration constituents are employed in the design of mechanical or engineering structures and machinery and have a immense affect on design of nearly each product or structure subject to environmental or use-related stress—from nuclear equipment, deep-sea vehicles, and aircraft to space vehicles, underground tunnels, and turbines. But the sheer volume of stress concentration data is now so huge that analysts and designers may have difficultness integrating this selective information expeditiously into design applications.

Now in it is third edition, Peterson’s Stress Concentration Factors establishes and maintains a system of selective information classification for all of the apps of stress and strain analysis and expedites their synthesis into CAD applications. This new edition of the book has been substantially revised and wholly modified and presents stress concentration elements both graphically and with formulas. Structures and shapes of interest may be without apparent effort accessed thru an illustrated table of contents that permits identification based on the geometry and loading of the emplacement of a factor.

This altered Third Edition features:

  • Completely modified and revised coverage of the most recent stress concentration factors, including geometric discontinuities in tubes and countersunk holes in plates

  • The how-to’s of optimizing a shape to circumvent stress concentration difficultnesses and to achieve a well-balanced design of structures and machines that will result in scaled down costs, lighter products, and bettered performance

  • New guidelines for the likely stress decay away from the point of the stress concentration for respective holes and notches

  • New methods for analyzing and calculating the stress concentration components based on the length of parts and on the emplacement of loading on elements

More comprehensive and up-to-date than former editions, Peterson’s Stress Concentration Factors is an necessary addition to the professional libraries of engineers and designers working in the automotive, aerospace, and nuclear industries; for civil and mechanical engineers; and for students and researchers in these fields.

About the AuthorWalter D. Pilkey is the Frederick Morse Professor in the Department of Mechanical and Aerospace Engineering at the University of Virginia and a leading authority in the areas of stress and strain in mechanical and civil engineering. He is the author of Formulas for Stress, Strain, and Structural Matrices, Second Edition and Analysis and Design of Elastic Beams, likewise available from Wiley.

Deborah F. Pilkey is an Engineer/Scientist in the Loads & Environments Department at ATK Launch Systems in Utah. She has been involved with structures technology, loads, dynamics, and production stress analysis of the Space Shuttle’s main engines and their solid rocket motors.


Most helpful customer reviews

13 of 13 people found the following review helpful.
5Peterson’s Stress Concentration Factors, 2nd Edition
By A
The definitive book of stress concentration factors…updated from Peterson’s original edition. This is the ultimate source for aerospace engineers dealing with design and analysis. Other engineering disciplines should find it equally useful. The book is more compact, yet thicker than the original but the the figures are very clear and readable. Explanations appear much the same.

6 of 6 people found the following review helpful.
5Guide to Stress Risers and Other Structural Phenomena
By Scott A. Prost-domasky
Absolutely essential book for anybody interested in stresses in notched bodies; structural analysts who like to use the ‘back of the envelope’, finite element analysts, fracture mechanicists; designers in aerospace, rail, heavy machinery, light machinery, medical devices, almost anything you can name. Book has been updated from the original; even if you have the original edition, this 2nd edition is well worth having for your engineering reference library.

5 of 7 people found the following review helpful.
5AN EXCELLENT BOOK
By JOSE ALVARADO
This is an excellent book. I found the book to be extremely informative and thoghtfully written. I recommend this book for anyone that is interested in applications of stress and strain analysis.

See all 5 customer reviews…

Petersons Stress Concentration Factors

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Petersons Stress Concentration Factors

Petersons Stress Concentration Factors Picture

Petersons Stress Concentration Factors

Petersons Stress Concentration Factors Pic

Petersons Stress Concentration Factors

Petersons Stress Concentration Factors Photo

Petersons Stress Concentration Factors

Petersons Stress Concentration Factors Picture

Petersons Stress Concentration Factors

Petersons Stress Concentration Factors Pic

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