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materialsscienceandengineering · 3 months

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Case Study: Liberty Ships Failure

In the 1940s, the US built over 2700 vessels referred to as the Liberty Ships. While it was far from the majority (most of the sunken Liberty ships were a result of German attacks), several of the Liberty ships suffered sudden, catastrophic failures that would go on to change the field of failure analysis. Examples include that of the Schenectady, pictured above cracked in half. These ship failures are perhaps some of the best well known examples of materials failure, often taught (or at least mentioned) in introductory classes.

While there were a number of mechanisms that led to the failure of the ships, one of the most cited causes is the ductile to brittle transition temperature (DBTT). Once the ships entered colder waters the structure of the steel changed and fracture occurred. The DBTT was actually discovered as a result of these failures by metallurgist Constance Tipper, of Cambridge. As expected, the thousands of Liberty ships had a significant impact during World War II, but, more unexpected, they had a significant impact on physical metallurgy.

Sources/Further Reading: (Image source - 2016 article) (2015 article) (University of Cambridge)

#Materials Science #Science #Materials Failure #Science history #FailureFriday #2024Daily

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shrishafoundation · 2 years

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Fail Fast, Fail Often 4 | Shrisha Foundation Full Video Link: https://www.youtube.com/watch?v=hW0HzgJX4n0 Full video and similar videos available @Shrisha Foundation main YouTube channel #Shrishafoundationtelugu #Shrishafoundation #Shrisha #Anusha #Sri #shrishaquotes #quotes #SriShrisha #anushrisha #failure #failureisnotanoption #failures #failurequotes #failureispartofsuccess #failureisnotfinal #failureleadstosuccess #failurenotanoption #failuretothrive #failureisntanoption #failuretolaunch #failuretosuccess #failureisnotfatal #failureissuccess #failureband #failuretoprepareispreparingtofail #failureisanoption #failuresnooption #failureisgood #failurefriday #failuresleadtosuccess

#Shrishafoundationtelugu Shrishafoundation Shrisha Anusha Sri shrishaquotes quotes SriShrisha anushrisha failure failureisnotanoption failure

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billionworship · 3 years

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Double tap if you agree Like ❤️ Comment 💬 Share ⏩ Save 📩 For more amazing posts Follow @billion_worship👈 Follow @billion_worship👈 Follow @billion_worship👈 #failuresarelessons #lovefailuretamilwhatsappstatus #failureanthem #renalfailure #successfulliving #failurestories #failurefriday #failureissuccess #successqoutes #lovefailureboys #tamillovefailuresong #successfullife #successmagazine #failuretosuccess #billion_worship #successes #failuretoprepareispreparingtofail #failuretolaunch #successday #failureisgood #failureinlife #failureislearning #failuretothrive #failureisdeadonarrival #failurebreedssuccess #lovefailurequotes #heartfailure #successclub #successleavesclues #successfromhome (at Sikkim) https://www.instagram.com/p/CSjM0dPB3A7/?utm_medium=tumblr

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gargbraj · 4 years

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Two times touch in middle of this photo Everything begin with imagination,❤️❤️ Without imagination nobody can pass a single day 🙏🙏 Every person did a imagination but they don't knew 🎸🎸 Mostly do negative imagination If I will fail that what would do after that 👉👉 If I will not succeed than people laugh at me Positive imagination moment for yourself after that real life will chang Follow 👉@ibmenterpreneur Follow 👉@ibmenterpreneur #ibmenterpreneur #imaginativeplay #imagination #imaginarymagnitude #imagine #imaginedragons #begginerartist #believe2success #motivationquotesinhindi #succulentsofinstagram #succulenta #dream_interiors #imaginedragonslive #positiveenergy #positivemorning #postivequotes #failuresuccess #failurefriday #failureisnotfinal #positivity (at Sukhdev Dhaba Murthal, Sonepat) https://www.instagram.com/p/CFPadVSg5cs/?igshid=ooc41s5p2rob

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everydayread · 4 years

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Simple pics telling Complex Stories #failure #failureisnotanoption #failures #failurequotes #FailuretoLaunch #failureleadstosuccess #failureisnotaoption #failureisntanoption #failuretosuccess #failureisanoption #failurenotanoption #failureisnotfinal #failuresurvivor #failurefriday #failuretothrive #failuretocommunicate #FailureRehab #failureisnotanoptionforme #failureandsuccess #FailuresAreLessons #failurebandig #failureisntfinal #failuretoprepareispreparingtofail #failurestosuccess #failureispartofsuccess #failurecomplains #FailureToFreedom #failuredrill #FailureMeansYouTried #FailureQuote https://www.instagram.com/p/CEODrc9AhFh/?igshid=k7yoo9ys1lku

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tusharrohilla21 · 4 years

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💠 🆁🅴🅰🅳 THIS 🅶🆄🆈🆂. WHAT U THINK ABOUT 🅵🅰🅸🅻🆄🆁🅴.⁉️ . ✔One who is truly successful is a man who is not influenced by the existing situation…the existing situation of success or failure, the existing situation of poverty or opulence, not being bogged down by that, but just able to see where it’s evolving tomorrow. . ✔ Whether you have a good deal or a bad deal, whatever the situation is, it’s very useful – you use that for your wellbeing. . . . #failure #failurequotes #lovefailure #failures #failurestories #failurefriday #failureispartofsuccess #motivates #successminded #motivationalwords #lovefailuresong #lovefailurequotes #doubts #successtips #successdiaries #successmore #successsecrets #successmantra #successfoundation #successinlife #motivationdaily #successminded #successstory #excellentcredit #tr #tusharrohilla21 #artfamily #bharat #tweet https://www.instagram.com/p/CBOwqC6nosH/?igshid=1czxhh6h0m9md

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mulomotivation · 4 years

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🛑Scrolling✋🏿 @mulo_motivation / Play w/ 🗣🎙 - 560 FRONT SQUAT FAILED🚫❌ - Even though I failed multiple times and managed to get it up it wasn’t how I liked it. So hungry to try this again and do it better - Quote of the day🔻 Authenticity always wins in the long run — Gary Vee . SHARE📥 BOOKMARK🔖 TAG SOMEONE👤 Read 🔻 Humble yourself before you wreck yourself. It’s pointless because we can see right through it. Be authentic. Let go of the perfect angles , perfect video quality , perfect fake smiles , perfect reps, perfect captions , perfect everything. Where is the authenticity. Why is it that every-time I scroll which is not too often, everyone’s balling out , everyone has perfect photography like professional level, perfect relationships. It seems like folks “only” do stuff for the gram and don’t have a side of authenticity. Before folks start tripping and say : “ so do you” ... hell yeah but also I’ll go out of my way to also show the real life stuff people deal with such as failures , obstacles and more. - I have nothing against people being happy but when it becomes a thing for an “Ego boost” then it becomes a thing that isn’t real , something more fabricated and dream like. - All I am saying is be real. And folks that may be scrolling and seeing others with the perfect everything ... usually it’s a front , an act something to boost ego. Don’t feel any type of way about it. Be thankful for what god gave you and work for what you want. There’s things you have that others would love to have. We have our flaws but on social media everyone seems perfect - Anyways that’s a bit of perspective for y’all like always get better everyday - “Optimize Yourself “ - - - - #Authenticity #FailureFriday #FlexFriday #BeHumble #FrontSquat #BeastModeMentality #Squats #FitnessFriday #WshhFitness #BodyBuilding #PowerliftingMotivation #HealthyLifestyle #RealTalk - @garyvee @prince_ea https://www.instagram.com/p/B441jV2DLPM/?igshid=opvv9qhx11fn

#authenticity #failurefriday #flexfriday #behumble #frontsquat #beastmodementality #squats #fitnessfriday #wshhfitness #bodybuilding #powerliftingmotivation #healthylifestyle #realtalk

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pedalsforward · 4 years

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You become what you fear most. Follow @pedalsforward . . . #Failure #failureisnotanoption #failures #failurequotes #FailuretoLaunch #failureleadstosuccess #failureisnotaoption #failureisanoption #failuretosuccess #failureisntanoption #failurenotanoption #failureisnotfinal #failuretothrive #failuresurvivor #failurefriday #failurestosuccess #failuretocommunicate #failureisnotanoptionforme #failureispartofsuccess #failureisntfinal #FailureRehab #failuretoprepareispreparingtofail #failureandsuccess #failurecomplains #FailureToFreedom #failuredrill #failurebandig #FailuresAreLessons #FailureQuote #failurewillneverovertakeme https://www.instagram.com/p/B4i2mJuD-JF/?igshid=i8viag0wqzks

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socialjusticecap · 7 years

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Travel ban failed. Trumpcare failed. Tweeting policy has failed. The wall is failing. Endless leaks from within his administration. 100s of positions yet to be filled. Hiding from the press. Failure Friday. Sick of winning yet?

[image description=Steve Rogers standing with hands in the air while confetti rains down on him.]

#trumpcarefail #captain america #nobannowall #united against hate #failurefriday #socialjusticecap

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dressagelifter · 5 years

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#fatiguefriday turned into #failurefriday but I'm not even mad, bro. . Today was testing out maxes in my programming, which I thought was a little crazy considering I had already deadlifted three times this week, RDLed four times and didn't really have low weight days. . So, I failed. A lot. I failed a 245 squat after the smooth 235lb in Vid 1. I tried again and got it but I was mad. I failed 130lb in my bench (after an encouraging 125 in Vid 2) but dropped to 127 (Vid 3) and got it. Deads were the worst. I failed a 275 WARM UP lift and struggled my ass off to pick it up a second time (Vid 4) and finally called it a day. . As I was driving home and reflecting on a rough session I tried to figure out where it had gone wrong. I realised I haven't had a day off of physical (farm) labour, riding, and/or weightlifting (I do all three M - F) since May 26th. I mean, I taught lessons that Sunday but didn't have stalls to clean. On top of that, add a relentless #hypertrophy block that just wont fucking die and because of which there has been very little heavy lifting. At first I told myself these were just excuses and I effing hate hearing excuses. But I remembered these weren't excuses - they were factors. All of these things are factors into why my CNS was fried and even though I had lots of failures today, I had good form under heavy loads and did not give up until I couldn't give any more. . That made me okay with myself. I had honestly tried my effing best. . #sociallyawkwardSam #dressagelifter #hybridaf #ionlyliftsoicanhalfhaltdraftcrosses #croptop #ithinkthePTguyisflirtingwithme #6days #dontworryimtakingabreaknextweekend (at Johnson Fitness Center) https://www.instagram.com/p/BytE-rbAinpF-6DdSVHFmL6UJM-DX7GYZJLtNo0/?igshid=lzgo232yp06e

#fatiguefriday #failurefriday #hypertrophy #sociallyawkwardsam #dressagelifter #hybridaf #ionlyliftsoicanhalfhaltdraftcrosses #croptop #ithinktheptguyisflirtingwithme #6days #dontworryimtakingabreaknextweekend

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materialsscienceandengineering · 11 days

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Case Study: Bay Bridge Bolt Failure

Also known as the San Francisco-Oakland Bay Bridge, the east section of the Bay Bridge collapsed in 1989 as a result of earthquakes in the area. The decision was eventually made to replace the entire bridge with a more earthquake resistant structure, with the western portion begining construction in 2004. In 2013 the eastern section of the new bridge was completed. However, construction did not go as planned. When pre-tension was applied, before finalization of construction, 32 of 96 A354BD bolts fractured within two weeks.

The bolts that failed were placed in 2008 as part of the shear keys meant to increase seismic resistance, meaning they did not contribute to the structure of the bridge. After the failure, all 96 bolts in the shear keys were considered suspect and alternative anchors were devised. However, the A354BD bolts were used in other places of construction so a detailed metallurgical analysis was conducted to ensure the bolts throughout the bridge would not fail as well. The failure was ultimately determined to be a result of hydrogen embrittlement. It was also eventually concluded that this was a result of the environment the rods were subjected to (seawater), not the manufacturing process, and the bolts used elsewhere throughout the bridge were allowed to remain supplemental corrosion protection measures.

Sources/Further Reading: (Images source - Structure Magazine) (TBPOC Report) (TWI Presentation)

#Materials Science #Science #Materials Failure #Hydrogen #Architecture #FailureFriday #2024Daily

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shrishafoundation · 2 years

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Fail Fast, Fail Often 3 | Shrisha Foundation Full Video Link: https://www.youtube.com/watch?v=hW0HzgJX4n0 Full video and similar videos available @Shrisha Foundation main YouTube channel #Shrishafoundationtelugu #Shrishafoundation #Shrisha #Anusha #Sri #shrishaquotes #quotes #SriShrisha #anushrisha #failure #failureisnotanoption #failures #failurequotes #failureispartofsuccess #failureisnotfinal #failureleadstosuccess #failurenotanoption #failuretothrive #failureisntanoption #failuretolaunch #failuretosuccess #failureisnotfatal #failureissuccess #failureband #failuretoprepareispreparingtofail #failureisanoption #failuresnooption #failureisgood #failurefriday #failuresleadtosuccess

#Shrishafoundationtelugu Shrishafoundation Shrisha Anusha Sri shrishaquotes quotes SriShrisha anushrisha failure failureisnotanoption failure

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stillwithhernothim · 7 years

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McCain getting lots of attention (of course, he's a guy) BUT we know.... there were TWO FEMALE REPUBLICANS SENATORS WHO ALSO SAVED HEALTHCARE!! We remember, and we celebrate them!! #Repost @una_nacion_latina ・・・ We're proud of you, sweeties. Being #powerful #women in a predominately male environment is not easy, all women know this. These ladies stepped outside of their pack to fight for what is right. Nothing but #respect. 👏🏽👏🏽 #senatormurkowski #senatorcollins #republican #femisnism #feminist #girlpower #womeninsolidarity #obamacare #aca #skinnyrepeal #skinnyrepeal #failurefriday for #trumpcare #womeninpolitics ______________________________________________________________________ #democrats #unanacionlatina #trump #trumprussia #covfefe #unanacionlatina #presidont #imeverywoman

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gargbraj · 4 years

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Failure will never overtake me if my determination to succeed is strong enough Follow 👉@ibmenterpreneur Follow 👉@ibmenterpreneur Follow 👉@ibmenterpreneur Follow 👉@ibmenterpreneur Follow 👉@ibmenterpreneur Follow 👉@ibmenterpreneur Follow 👉@ibmenterpreneur #ibmenterpreneur #succulenta #believe2success #believebigger #believers #believe #india #indiansuccessstories #instagrammer #marketing #goalkeepertraining #goal #dreambig #failuresuccess #failurefriday #failureispartofsuccess #wednesdaywisdom #lifestruggles #luxurylifestyle #motivationquotesinhindi #motivationalposts #motivationtips #motivation365days (at Delhi, India) https://www.instagram.com/p/CDyy-VpAcJl/?igshid=6yg3oikd220l

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florianmeise · 5 years

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Mit dem #failurefriday teste ich ein neues Format und bin sehr gespannt auf euer Feedback! Das volle Video findet ihr auf YouTube oder in meinem Instagram TV Kanal. (hier: manugoo) https://www.instagram.com/p/BsTQWj_n-Zv/?utm_source=ig_tumblr_share&igshid=st3rivl1t3hd

#failurefriday

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caseyelizabethfit · 7 years

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Bench felt good this morning so we decided to go up... I failed 135 once got pissed off then tried and failed again. My head wasn't in it. As soon as nick stuck 2 fingers under the bar it flew up.. he barely helped but I didn't do it on my own. I've said it a million times before but lifting is way more mental than physical for me. If my head isn't in the game the weights not moving. After everything that went on yesterday feeling beyond stressed and sick (IBS+anxiety=🤢) all I wanted to do was lift. Yeah I was pissed off I couldn't get 135 up but I knew exactly why, so we dropped the weight down and banged out some reps. So what if you fail? Not every lift is gonna be amazing, don't let it ruin your day. Do what you need to do to get where you want to be. Other than that had a killer shoulder pump, now going home to take a bubble bath and write a new blog post. Look for it 👀 #whg #warhousegym #warhouse #benchfail #failurefriday #training #fitness #bench #failuresimportant #chestday #shoulderday #workout #mentalgains #skippedclass #mentalhealthday (at WARHOUSE GYM)

#skippedclass #training #whg #warhouse #failuresimportant #workout #chestday #warhousegym #shoulderday #bench #benchfail #failurefriday #fitness #mentalhealthday #mentalgains

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