Fracture mechanics Puns

I’m not an engineer, but am casually learning about it. So, my question is: if stress is a physical quantity, why does it become theoretically infinite “ahead of a sharp crack tip” (this is straight from the wiki, I’m not sure what that actually means)? Shouldn’t the strain -which is relative- be infinite while the stress remains quantifiable?

Hi, I'm a first year Material science and engineering student in the UK.

Does anyone studying "Fracture Mechanics" suggest some resources to practice questions including the topics: Griffith equation, energy release rate, raising/constant R curve, Kic, modes of fracture, Weibull parameter/weibull distribution, graph of stress intensity factor(K) vs Crack velocity and a bunch of other concepts.

Any suggestions about a book having practice questions covering these topics or other resource anyone has and can tell me would be greatly appreciated. Thank you :)

I wanna start by addressing the whatabout-isms, I know Warlocks have much more consistent freezing mechanics, that penumbral blast can freeze in place while now withering blade will deal 40 slowed each blade not freezing not even with two blades and that Titans have falcon punch,

But while Hunters have shatter dive and Titans slide can shatter stasis Crystals, Warlocks don't seem to have a shattering mechanic yet.

Just thought I'd bring it up as a piece of feedback for future aspects.

I've been around before but hi /r/materials

I'm currently doing my masters in materials sciences and engineering, specifically metallurgy. I'm realizing now that I only have a limited understanding of fracture mechanics and my school doesn't offer a great class on it. It's one thing I would like to get at least a basic understanding of and be able to apply. Does anyone have good literature on this topic? Whether it be introductory chapters in Callister or just a few good chapter from an actual fracture mechanics book. Any help would be appreciated.

Which leads to my second point... The reason I want to learn a bit more about fracture mechanics is because I'll be graduating with my masters within a year and need to find a job. Specifically I would like to go into failure analysis. I've done this before at internships and very much enjoyed it. I have experience with a fairly wide variety of analytical techniques and equipment. I just really enjoy the field.

Is anyone aware of job openings in failure analysis I should look into? Any direction, ideas, or advice would be greatly appreciated. I'm in midwest but can move after graduation.

Thanks all

What happens to glass when it breaks? I'm sure many factors influence it, but what are the basic structural changes that occur?

I'm doing an ANSYS FEA course at the moment and the lecturer is discussing the underlying solid mechanics principles with which the software uses to compute the relevant stresses, strains and displacements etc.

It seems like the whole idea is that materials are considered as a continuum, to which you apply the infinitesimally small control volume to then consider the normal and shear forces in equilibrium - this gives you your governing equations.

I feel like I'm missing somethough though, where is fracture mechanics in this picture?

I'm aware of the Virtual Crack Closure Technique (VCCT) for example, but not sure how/when it is used. Are the effects of cracks simply ignored for certain problems?

Hey! I am looking for a fracture mechanics tutor to meet with me over Zoom.

Hello guys, I have a problem that I need to solve for homework but stuck at a point I am not sure what the correct way. This the problem I want help in the second point and just want to know the value I should use for Δσ since I naturally would use (225-60) but i found a lecture online with the same problem and provide the final answer only which is only possible if I choose 225.

I just graduated about a week ago with my BS from Purdue and have begun looking into Master's programs. My main area of interest is exactly what the title says. I have noticed that UT Austin is perhaps a good place to look into for this since they have " The Center for Mechanics of Solids, Structures and Materials ". Purdue is another place since there is a professor I took a class with somewhat involved in this field.

Any advice on where to start looking and/or good programs/professors for the aforementioned area is welcome.

For my undergrad course, P_LM is defined as such

P_LM=T(log(t_r)+c)

Where T is temperature, t_r is rupture time and c is the constant.

I can't find anywhere however what base the log is in, is it base 10 or is it a natural log?

I'm doing quite a lot of research in fracture mechanics. Never really have experience in industry, where in this industry I can go and what can I do after I graduate?

PS: planning to go to building industry

Thank you very much!

Does anyone have any good fracture mechanics resources they know about?

I got thrown into the world of API 579 part 9 and I need some background/references/theory/derivation stuff to help me understand it all.

I posted this exact message in r/EngineeringStudents but I figured it wouldn't hurt to post it here.

Hey guys, I'm a student in materials engineering and I'm thinking about pursuing a master's in MechE with the focus being on fracture mechanics, FEM of crack propagation and stress modeling and all that stuff associated with the field.

My main interests in my current degree lie in failure analysis and I've done a few projects on this, but I've only been involved in the materials side, meaning I do the microscopy and metallurgical analysis and all that is associated with an FA investigation. Lately I've been feeling like I've been missing something, and I realized that I could be much more valuable as a failure analyst if I was involved in the designing and analysis of materials/components and determining amount of cycles, load to failure, critical crack length, a materials ability to retard crack growth, and so on.

I was wondering if anyone here is also involved with this field and if anyone could give pointers on what I should study. I'm also trying to figure out the school for this. So far I think my current school is a good candidate, but I would like to also know of schools in Texas (because I have a tuition waiver in Texas) that is great in this field.

Thanks to anyone that responds!

• DOI/PMID/ISBN: 9780123850027

• [URL] https://www.elsevier.com/books/fracture-mechanics/sun/978-0-12-385001-0

Sorry for the dumb question, but I am having trouble wrapping my head around the difference between a notch and a crack.

My thought is that a notch is an indentation/hole/area of missing material that is intentionally put in the material for various purposes. Whereas, a crack is an unintentional, yet inevitable, hole/imperfection formed during manufacturing.

Is this correct? Can anyone add some further insight? Thanks

Hello r/askengineers, I just got a position at a manufacturing company where I will be working with fracture and fatigue analysis of high strength steels. I have studied solid mechanics and mechanics of materials, but I concentrated on polymers during college so I need to refresh my metals knowledge.

What reference books, textbooks, and online resources have been useful to you on the job? Also, which organizations (such as AIST) concentrate in distributing information on the most current research and technologies in fracture analysis?

If i kill fractured mobs, do they have a chance to summon beyond monsters?