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CEE 372 Syllabus

CEE 372 Syllabus - CEE 372 Strength of Materials Lecture...

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Unformatted text preview: CEE 372: Strength of Materials Lecture: MWF 8 — 9 WRB 2003 Credits: 3 credits. Text: Mechanics of Materials, By Gere/Goodno 7 ti} Edition - Ceagage Learning Instructor: Raj V. Siddharthan, Ph.D., RE. Room 224 SEM P’hone: '784—1411(ofoce) Email: [email protected] Office Hours: Scheduled hours are posted outside my door, but feet free to check with me Whenever you catch me in my office. (MWF 9 — 1(3) Grading: Two Ins-Class Exams 45 Exam -FINAL 35 Homework 20 100 — / + System will be used Last Fail: 60% of class got above B~IC+ Attendance: Attendance at lectures is mandatory. Unexcnsed absence of more than “Two classes will result in drop in thefinal grade.” H om eyvork Assignments Homework is due one Week from the day they are given. if a hoiidav fails on the due day, then the next day of class is fine IMPORTANT DEADLINES YOU SHOULD KNOW FOR THIS SEMESTER — Finai date for late registration, payment of registration fees, (190% refund provided courses are dropped by this date). — Final date for addition of courses. - Final date for dropping courses. " (SEE 372: Strength of Materials S trength of Materials/ Ream WRB 2003 No Lab. Instructor: Raj V. Siddhai'than, PhD. PE. Room 224 SEM Phone: 784—1411 {office} Email: [email protected] Office Hours:Scheduled' hours are posted outside my door, but feel free to check with me whenever you catch me in my office. MWF 9 — 10 Final Drop Date: Mare]: 13 — Friday Final Exam: . May 11 — Monday um 7:30 —- 9:39 An unexcused absence Attendance at lectures is mandatory. Unexeused absence above “Two classes will result in drop in the final grade. ” ABE T/FE/PE Athdnmental Course: CE ME ME GE Credits: 3 credits lecture Text: Mechanics of Materials, By (3ch 7' ti: Edition (2008/2009) — Cengagc Learning. Grading: Two Iii-Class Exams Exam 2-F1NAL Homework — t+ System will be used Last Time: 60% of class got above CHIS— Homework Assipnments: Homework is due one week from the day they are given. If a hoEiday falls on the due day, then the next day of ' class is fine. OBJECIVE: .Study of the behavior of loud carrying objects when applied with loads. We want to know about: Stresses/strains/deflectt'nns/failnre mechanisms etc. Prerequisite: CEE/ME 241 — Statics Force/Moment Equilibrium; Trusses; Shem- Fore Bending Moment Cats and Diagrams; Center 0 Gravity; Second Moment ofAren; Obvious Functionai Disasters Ladies & Gentlemen, Neminees for : “Best Contractor Awards” OTHER REFERENCES AND TEXTBOOKS Textbooks used by other universities. Mechanics ui‘MatcrinIs, by Hibbler _ Mechanics of Materials, by Beer and Johnson ' Engineering Mechanics of Materials, by Muvdi and .- McNabh Mechanics ofMaleriaisg by Pupnv Mechanics ni‘ Materiais, by Bouid Mechanics of Materials, by Higdon, et ai. Obvious Functionaf Disasters Ladies 61: GcmEemen, Nominees for : “Best Contractor Awards” . SMDXESS 2 mm”: i i SWDSWE “mum you gfllmy “an?“ NICATiON _ my 5, CEE 372: Strength of Materials a » Vertical integration of ideas and Concepts (e.g. MathiPhysiCSIStatics} 5 Examples of Horizontal integration ------- ‘ CEE 372: Engineering Disgipimcs Seljygq I CM: Engineering _ _ I Meehanlcal Engineermg _ I I MmmgiGeologaca Engineermg I Chemica$ Engineen’og I Bio— Medica Engineering 3 I Eleéirieéi'lingineering: ' - i :_:. ABET Requirement BS Engineering students from all courses must attain: )an ability to appiy knowledge of mathematics, science, and engineering ) an ability to design a system, component, or process to meet desired needs within reaiisfic constraints such as economic,environmental, social, political, ethical, hcaith and safety. manefacturability, and sustainabiiity e) an ability to identify, formuiate, and soive engineering roblems i) an ”understanding of professional and ethicai reSponsibility g) an ability to communicate effectively '.{1) Too much Maéei'ial ...... 2) Ciass examples are ok; But Homework & Exams are Hard '(3) More Exams and More Examples.... Time/Timeffime (4) Do not have class at 8am _ PhilosophicalConcernsiComments {1} DO I NEED This Course._...ABET... FE...PE.... ‘ _ (2) Relation between Success and Grades — BilE Gates! (LC. Myers - Larry Page & Sergey Brin - Google CEE 372: Where can I find “W’ORKEB EXAMPLE ES”: 3 us- Text Book _ _ _ i l in Class Worked Exam'pi es- _I- Othr Text Books:— List Provided If : ; -I ”Schaum Series Book's. (MCGraw H} ' I ".w Sialics- " . w Mechanics of MaterlIFs ' m_ Strength of Maie_ria__ CEE 372: Strength of Materials : {3) E’mhiems at Innsbrook Apartment Complex ' (2) Water Treatment I’iam » South Reno (3} Truck Siamming into Calif. Overpass (4) New Orleans - Kaérina Debacle (5) Minnesota Bridge Collapse (6} Mine Tommi Collapse in Utah Ami/Thing New & Exciting. {3-) (7) Complex Nature of Soii fitVerrnzano -Nnrrows Bridge Site, NY(1964) wwas the longest 9115 :1" 1"i“ (9) Renewal anncleur Testing at Nevada Test Site — 19703 Test ban treaty; Growth in Las Vegas; — Lawrence Livermore National Laboratory {LLNLJ (1t!) Boston Tunnel Project (Big Dig) m 7.5 miles - Original Cost (1.991} ~ S 5.8 biilion - Final Cost S 13.6 billion (Completed 2804) wwwhoslon.comfg!obeltnetrm‘pnckagcsi’bechtelf in Bank of America .. Tower in NY One of the most highly efficient and ecologically friendly buildings in the world. Construction is expected to be completed in 2009, (See Text Provided: Power Gong Rain water; Cog) n Seconddallest building in New York City "Reigtégéii . Edi" in . (8} Ferniey Canal Breech» Jan. 5, 2008. The canal was built in 1903 and has been in operation for a century. The failure affected more than 800 families and the cost ~ $60 million. “Why Did it Fail Now?” k Geo-Forensic Engineering... eote‘ch'nie -' Boston Big Dig: Costiier than the Panama Canal, the Alaska Pipeline or the Hoover Dam; Most costly Public. Works Progect in the US {11) Katrina Catastrophe ('2 005), New Orleans - Cost 3 mt) hiliion (1’) w Failure of Levee System - wwwdeadlykstriumcum ? Shape Memory Alloys (SMA) nsnt— Healing Material Anyone? I A shape memory alloy [SMA, also known as a - smart alloy, memory metal. or muscle wire} is an alloy that "remembers" its shape. Afters sample of SMA has been deformed tom its original crystallographic configuration, it regains its original geometry by itself during heating (one-way effect) or, at higher ambient temperaturesmsimply during unloading (pseudo-elasticity or soperelasliclly). These extraordinary properties are due to a temperaturemdopendent martensitic phase transformation from a [ow—symmetrylo a highly symmetric crystallographic structure. Those crystal structures are known as martensite (at lower temperatures and austenito (at higher temperatures . Environmental Advantages of Bank ef America at One Bryant Park New Yerk City, NY The des1<111 0f1111e 11111111111g 111111111111<e1t e11virc111111e111211111y 111111111131. 1151111.: {60111101109138 Such as 11001— [(1— ee11111g 111311121t111g 1112133 10 (3011121111 heat. and 11121x1'1111ze 11211111211 113111“ 2111111111 automatic . deyjight (111111111111; :11 stem The 10111 er 1.150 113111111135; 2.1 01131!“ 1/11_1_-_e1 sy=1te111 which captm c1 1211111131111 '- and reuses it. 13111111 115 IA111e11c11 1150 States that the building 1111.11 be made 11111113131 of recycled and 5 1ecyclc1111e 111316311111 A.11othe111111(1vatie11 is that 1101 (1111y 13 air entering the 111111111111; p1111f1ed to 3- 211111111 111111111: 11111 the air exhausted 18 21.1511 eiez-111e1 11111.5 effectiveiy making {he tower 21 11121111. 211.1 _ £11 11121", for 11/11de 11 Manhattan LJflBenk 0114:1111-1111:21 Towei 13. {he f 1111 skyscrapm. ec51g11ed to 11111111 21 P1at11111111 1.1313113 C emf-121111011. “("1 (31111011 d10x1de 111115013 will sig11a1- increased fresh 1111" ve11t11atio11 when eleVateci levels of carbe1133_ ("1.011111116111 e001 the bui1d111g (11111111.;3 13:31.11; 1 (1.1111211111191110 the 1ee batteries 111 1-1114: 199: 11111111 11111 111 Tokyo J apan w Ice batteriels have. been used since 21115011111011 chillers 11131 made ice? - 0691111111 110111111 productlon 11111115 seam oars res l. CONCEPT OF STRESS & STRAIN l.l Normal Stress and Strain 1.2 Stresswstrain Diagrams 1.3 Concepts of Elasticity and Plasticity, Repeated Loading, Fatigue 1.4 Hook's Law; Mooules of Elasticity 145 Shearing Stress and Strain l.6 Ultimate and Allowable Stress; Factor of Safety STRESS AND STRAIN FOR AXIALLY LOADED MEMBERS 2 l Deflections of Axially Loaded Members 2.2 Stresses on Inclined Sections 2 3 2 4 2 5 Poisson‘s Ratio Multiaxial Loaéing; Generalizeé Eook‘s Law Problems Involving Temperature Changes a In 9 TORSION 3.1 Preliminary Discussion of the Torsion of a Circular Shaft 3.2 Stresses in a Circular Shaft 3.3 Deformations in a Circular Shaft 3.4 Thin Walled Hollow Shafts INTRODUCTION TO THE BEAM THEORY 4 1 Types of Beams 4.2 Reactions 4 3 Shear Force and Bending Moment A a Relationships Between Load, Shear Force, and Bending Moment Shear ForoemBending Moment Diagrams R 1 General Discussion of Pure sensing 2 Normal Stresses in Beams .3 Normal Strains in Beams 4 .Beam Equation 5 Cross Sectional-Shapes of Beams 6 Shear Stresses in Common Types of Beams NALYSIS OF STRESS AND STRAIN l Plane Stress 2 Principal Stress; Maximum Shearing Stress .3 Mohr's Circle 4. General State of Stress 5 Application of Mohrfs Circle to Three-Dimensional Analysis .6 Plane Strain .7 Mohr‘s Circle for Plane Strain .8 Three—Dimensional Analysis of Strain %§ a DEFLECTIONS OF BEAHS 7.1 integration Methods for the Ca Deflections 7&2 Moment-Area_Theorems - SEPQIEE mgurgfi R REY METHODS Pure Bonding Materials 10.1 Definition or COLUMNS PRESSURE VESSELS NONLINEAR BEEAVIOR 9.1 Nonlinear Behav 9.2 Nonlinear Tor ' 9.3 E E 8 1 Strain Energy; Strain Energy Sens _8.2 Strain Energy Density 8 3 Virtual Work Principle 8 4 Introductory Agplications of fine .Calctlation of Displacements in Some Spec of Members fiade fr 10.2 General Description of Method: Statioally Inéeterminate Structures 11.1 Stability ofi Columns: Buckling 11.2 Pin Ended Columns; Euleris Formula 11.3 Columns with Other 11.4 Columns with Eccentric Axial Loads it?! , , ial Loading Cases rgy Methods onthe ior of Axially Loadeé.Members Sion of Circular Bars om Elasto—PléStio a of Analysis of Suyport Conditions GEE 372 : Strength of Materials ASSINGN'MENT ii 1 (Answer all Part1 and Part II questions. Always provide clear steps and diagrams) Part. I Find the centroidal distances xg and yg of the objects shown below in Fig. i. A four bar mechanism ABCD (Fig. 2) is attached by a spring at its left end. to rigid wall and at its right end through another bar to the right rigid wall. All five bar members are rigid. The spring constant is 10.2 Who; This means a force of 10.2 RN is required to stretch the spring by l in. Initially, the when a E 0, all bars are horizontal and the spring tension is 200 N. The load P was then appiied, and the bars open to the position shown. Find the force P required to cause this deformation. The solid long circular cylinder (Fig. 3) rests in the trough as shown. Ail surfaces are smooth. The weight of the cylinder is 392.4 N. Determine the forces on the cylinder from each of the walls. Fig. 4 shows two solid long cylinders each with weight W and radius r. The are lying within a rectangular box of width L. Obviously, for cylinders to occupy the positions shown, 4r>L. Determine the forces exerted by each of the cylinder upon the walls (RA and RD). Also determine the interaction force between the cylinders (RC). Provide clear steps and give answers in. terms of W, L and r. Explain the magnitude of the forces computed above, relative to the two following scenarios: - Explain your answers clearly with diagrams. Scenario 1: What happens, when L slowly approaches 2r? Scenario 2: W hat happens, when L slowly approaches 41'? 50mm 4 " : TMOM so MGM ' mm mm mm B fie I . E , £1153: ”A? Cfifiwnfln’ {W {a ”are; mg“; :3” Part II: Brain Teasers ' 3. Tom and His Best Friend: Daily Torn walks up and down a hill. which is eight kilometers for a round trip. His dog being slower, walks at one~third speed. Tom reaches the top of the hill and turns around and walks clown. After meeting the dog part way, he continues walking to the bottom of the hill. The dog follows him without going to the top of the hill. (1} Once both are at the bottom ofthe hill, in total how far have Tom and the dog walked rm"- km (ii) How far from the base did Torn meet up with his dog? kin ll Lin and Down in Nottingham fills: Two cyclists rode their bicycles once up and dovm a hill. They averaged 20 ionfhr on the way up and 40 kin/hr on the way down. the average speed for the entire trip = WW H_m knifhr Incredible Hulk Cats: if three cats catch three mice in three minutes, how many cats would be needed to catch 100 mice in 50 minutes? (Hint these second generation gene~altered cats have a huge appetite) Number cats required 2 Tough Life of a Race Car Driver: A race car driver has figured out so long as he can travel at lSOlcm/hr in the entire nine lap race, he can win. Because of an engine trouble, the driver was able to travel the first three laps at an average speed of only 901(nr/hr. Well, if he has to still win. what average speed should he be traveling during the next six laps to win the race? Average Speed in the last three laps = ‘ _ kin/hr Lotus Pond in Sizer-rgri Let: A lotus pond in a land trucked away in the Himalayas was 400 ft in diameter and on July 4, 2007 at 00:00 hrs (military time} the pond was completely with filled lotus tloWers, each with 8” in dia. The inhahitauts of this wonderful land say the lotus flowers quadruple in numher evety' thirty days; (i) Date that the pond was 80% full: Year“ Month . N Day Hour (ii) How many days earlier did the pond had just one flower: Days Hooray m Obmipimz Michael Phelps: Phelps figured out that in the 4x100m breast-stroke relay competition the average speed should be at least 6.851011%: for the entire relay to break the existing world record. The first three contestants completed their 100m stretch in 53.2, 52.5 and 52.6 secs. What should be the speed of the last contestant Phelps to stiil make the record? I Average Speed of Olympian Phelps = __ kin/hr Olympian Phelps’ time should be at least = sees The above assignment was designed as evidence to satisfy some of the ABET Requirements: EX. Criteria 3 {a} and 3(a), and other general concepts, (a) an ability to apply knowledge of mathematics, science, and engineering; (e) an ability to identify, formulate, and solve engineering problems; (0) an ability to discriminate and logically apply the concepts that have relevance in day to day life; ...
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