Questions related to Structural Integrity
There have been many classical fatigue life assessment methods, but most of them have their own limitations. For example, the method of material fatigue life assessment is often not suitable for complex engineering components. If we want to accurately predict the fatigue life of engineering structure, which aspects should we start from? Welcome to leave a message.
Recently, I came into contact with a new discipline named chemo-mechanical coupling. I found that chemo-mechanical coupling phenomena exist in many research areas, ranging from development of advanced batteries, biomechanical engineering, hydrogen embrittlement, and high temperature oxidation, etc. Although it is very important in engineering field, I can't know the main mechanisms of coupled chemical and mechanical interactions. Can you give me some suggestions? Such as, some related publications or research project. Thanks very much.
With Climate Change and all, I will tell you what I think is a minimum needed for survival and that is: literally a completely, fully, entirely new outlook on life AND that being FOR EVERY HUMAN BEING and involving all our work-a-day pursuits -- a wholly new way of life (and "full-blown" way of action/work) and a source of wholesomeness and great actions and GOOD:
Every hour/day/week/month/year, etc. you wake up mindful, informed (and get more informed as ever needed to proceed ASAP), dedicated, and completely persistent and consistent in acting for the earth-life-dignity of your CAUSES and related CAUSES. Serious life as pursued will be nothing but your involvement and active-dedication to CAUSES (maintaining rational, workable consistencies, and AS MUCH IN ACTION as possible, to actually achieve or actualize the causes). Satisfaction will have nothing to do with "being easy-going" NOR with typical or traditional ideas (notions) of happiness, nor with any [supposedly] other way of (or toward, or for) "satisfaction" -- "rewards" of life many of you, much of the time, thought likely would come with "freedom" and "general happiness" (as historically thought about) but such will be clearly seen as blatant, flagrant, and shameful irresponsibility of old ways considered not worth even thinking about FOR ANY GOOD PURPOSE or any goal in the world (you will have plenty else to think about and with integrity and dignity AND FOR DIGNITY AND INTEGRITY)(plus, there is inherent irrationality in the old views: one way or others of expecting -- and basically even counting on -- MAGIC). BUT, now, all the old happiness/play/satisfaction/fun in-and-with any other "things" or activities will naturally and rationally and personally come to be seen as that which eliminates true dignity and integrity and any worthwhile (or even real) satisfactions -- now with you having the dignity and integrity of work on AND for your CAUSES. With this new way (for all we see for ourselves and for any decent folk we will associate with), SOON nothing else will will "do"; we will have a new way to real dignity, better understandings, and some true, real, good lasting, progressive satisfaction, and with greater loving kindness and equanimity (as we accept we do what we do and others do as their own best in the same vein). As indicated, the way is to operate (LIVE) IS ONLY in terms of CAUSES and inter-related or necessarily simultaneous or successive CAUSES. Developing and accomplishing (in action as much as possible and necessary) will be ALL for the CAUSES which will be your life -- the "all" of your life that matters or has any implications for yourself or others. And, this is also at least as all other decent human beings doing all major things of working life will know you, and that is how you will know them. This is all simply a commitment to understandings, and engaging in wholesome pursuits (which, AGAIN, will be in terms of CAUSES). The causes will be shared only as well, rationally, and wholesomely pursued through group action BUT may well be otherwise that which is done alone (individually), if that is how things are going to get done.
This is the formula for self-breeding of the species and for any real decency and for the survival of the species itself. I cannot imagine how anything else will be sufficiently adaptive; in fact, anything else breeds ignorance, confusion, chaos and irresponsibility (an easy logical and sound argument to make). (I want to live, I want humans who follow me to live; DO YOU?)
- Generally, fracture mechanics parameters and terms (CTOD, J, C*, stress, load line displacement, plastic zone size) have relevant & respective dimensional units. The physical significance of their units is easily understandable like, energy per unit area or energy rate per unit area of crack growth. In case of K, why its (meter)1/2 i.e. square root of crack size, a and not simple a or 1/a or a-2 ? What is the physical significance of including square root of crack size, a in K formula?
What are the main instruments used for measurement of different parameters, such as displacements, strains, etc, during the Structural Integrity Test (SIT) and Integrated Leak Rate Test (IRLT) of Containment Building?
Hydrogen is known to diffuse through metals and compromise the structural integrity. Thus, pipelines have to be made with more expensive and thicker high strength steels. Are there any synthetic or metal-based coatings that could reduce the diffusion rate of Hydrogen and thus allow cheaper pipelines to be used?
I'm trying to do a simple analysis of Timoshenko beam supported by granular layer and excited by impact force. FEM is used and the granular layer is represented by Winkler springs. I want to include damping in the granular layer. Do you have any suggestion how the damping can be represented?
I cannot find any research which just focuses on the team size, structure, integration, reporting lines etc of an "ideal sustainability team" of a large corporate. Does anyone know relevant research on this or can provide direction for new research?