...P7 perform and record the results of one destructive test and one non-destructive test using metal and one non-metallic material. The two tests that we conducted were a non-destructive tap test on a piece of an aircraft floor panel, and a destructive tensile test on a tensiometer. The non-destructive test is designed to identify internal or external structural damage of a composite. The material we are testing is an aircraft floor panel that is made of two sheets of glass or carbon fibre reinforced epoxy with a honeycomb centre. The non-destructive tap test we conducted was on an aircraft floor panel that is made of glass or carbon fibre reinforced epoxy skins with a Nomex honeycomb core about 1cm thick which is a composite. The panel we tested was about 1 meter by 0.5 of a meter. The resonating tap/sound test for internal damages is where we took a tap test hammer and gently let the hammer fall from about 1” above...
Words: 1799 - Pages: 8
...are several types of tests to determine strength of material. Deriving strength of materials refers to various methods of calculating stresses in structural members such as: • beams & columns • shafts • fasteners • spring wires • reinforcing wires • various engineering components A test is performed on the sample of the component or on the actual component to predict its strength behaviour or its susceptibility to various failure modes when the part is in service or in operating conditions. The type of test is selected on the basis of direction of acting forces on particular structures or components or parts 2. Proof load testing Proof load test is performed on different parts to guarantee that these segments can withstand the outline stack without disappointment or with yielding. The test is performed by applying force in the range of 1.1 to 1.5 times of the design load or maximum allowable working load (MAWL) for a specified duration. 3. Hydrostatic test A hydrostatic test is performed to determine the integrity and soundness of pressure vessels and piping joints. A decrease in the applied pressure or leakage through the products or joints or plastic deformation or distortion or bulging in the product is indication of inadequate quality of the product under test. This test method is also termed as Leak testing (based on the principles of leakage during pressurised condition) and Pressure Drop Test (based on the principles of decrease in pressure during test due to unacceptable...
Words: 1020 - Pages: 5
...Engine Fastener Safety Michael Adams Embry Riddle Aeronautical University As everyone in the Aviation industry knows safety is paramount to all aspects of flight operations.one aspect that gets overlooked by most people is how exactly the little bits and pieces create an aircraft that can operate safely. The importance of aircraft hardware is often overlooked because of the small size of most items. However, the safe and efficient operation of any aircraft depends upon the correct selection and use of aircraft hardware. One of the most overlooked aspects of aviation safety is the fastener and more specifically the engine fasteners. Anyone who has been around aircraft engines know that they are a unique engineering marvel and are capable of some pretty spectacular feats, but to accomplish this the engines have to produce tremendous amounts of stress and heat. To put it in perspective it is not uncommon for an aircraft engine to produce 30,000 lbs.’ of thrust with temperatures at the exhaust ports exceeding 2000° F. To hold these engines and power plants together we depend upon various types of fasteners which leads to the question how do these small bits of hardware survive under the extreme amount of heat and stress that an engine produces? In our course we learned that there are 4 methods of controlling safety with the hierarchy being engineering, administrative, PPE and interim fixes. Engine fasteners have their safety controls engineered into them and validated with extensive...
Words: 2940 - Pages: 12
...MICROSTRUCTURES: .................................................. 14 Chapter # 2: Tensile Testing .............................................................................................................. 19 2.1 INTRODUCTION: ....................................................................... 19 2.2 PROCEDURE OF TENSILE TESTING: ............................................. 19 2.3 TENSILE PROPERTIES: ............................................................... 21 2.4 EXPERIMENTAL RESULTS OF TENSILE TESTING: ........................... 26 Chapter # 3: Bend Test ....................................................................................................................... 28 3.1 INTRODUCTION: ....................................................................... 28 3.2 TYPES OF BEND TEST: ............................................................... 28 3.3 EXPERIMENTAL RESULTS OF BEND TEST: ..................................... 31 Chapter # 4: Compression Testing .................................................................................................... 33 4.1INTRODUCTION: ........................................................................ 33 4.2 COMPRESSION FRACTURE:...
Words: 29832 - Pages: 120
...SECTION 3 REPORT 3.1 CLASSIFICATION AND DESCRIPTION OF THE MANUFACTURING TECHNIQUES IN FNSS Following techniques of manufacturing are being used in FNSS; * Chip Removal * Joining * Metal Forming * Testing * Chemical Operations 3.1.1 CHIP REMOVAL PROCESSES Metal cutting, commonly called machininh, is the removal of unwanted portions from a block,plate of material in the from o chips so as to obtain a finished product of desired dimensions, finish.Most of the manufactured products require machining at some stage of their production, ranging from rough work to high precision work.Hence metal cutting is the most important of the basic manufacturing processes. In all metal cutting operations an edged tool driven in to the material to remove chips from the main body and reach the desired geometry.Other actions that occurs are related to that action. In cutting operations, there are three cutting conditions; namely speed, feed and depth of cut.Speed is the primary cutting motion, which relates the velocity of the tool relative to work.Feed is the amaount of material removed per revolution.The depth of cut is the depth of cutting edge engaged in the workpiece. The properties of the workpiece are important in chip formation.High strength materials require larger forces than do materials of lower strength, causing greater tool and work deflection, increased friction and heat generation and operating temperatures,and requiring greater work input.The...
Words: 3535 - Pages: 15
...Manson only thought about himself and doing things only for himself being self centered, and that how his whole life was from a young age being on the street, he adapted this personality. Narcissism is defined as “inflated self- admiration and constant attempts to draw attention to self and keep others focused on self” (Knight, 2006). Manson was drawn to attention by having his followers come to him and worship his feet. Narcissistic can be an aspect of human behavior though two was, “First, maybe non-pathological and the basis for healthy ambitions and ideals, while the other identified as pathological and destructive and individuals behave in murderous ways” (Knight, 2006), in Manson case he was pathological...
Words: 1230 - Pages: 5
...Implementing Earned Value Easily and Effectively Published in Project Management Journal, June 1998 Daniel M. Brandon, Jr., Ph.D. Christian Brothers University School of Business 650 East Parkway South Memphis, TN 38104 Phone: (901) 321-3615 Fax: (901) 321-3566 E-Mail: dbrandon@odin.cbu.edu Implementing Earned Value Easily and Effectively Abstract “Earned Value” is a very powerful approach for the evaluation of true project performance. It also provides a quantitative basis for estimating actual completion time and actual cost at completion. However the effective use of this important technique is rare outside of the US Government and its contractors. There are several reasons for this general lack of use, and the associated implementation problems are discussed herein. This article also presents some methodology and specific techniques to overcome each of these problems, thus providing an effective and relatively easy implementation of earned value. Implementing Earned Value Easily and Effectively “Earned Value” is a quantitative approach to evaluate true performance of a project both in terms of cost deviation and schedule deviation. It also provides a quantitative basis for estimating actual completion time and actual cost at completion. However the effective use of this important technique is relatively rare outside of the US Government and its contractors [4]. It is one of the most underused cost management tools available...
Words: 3867 - Pages: 16
...weapons is being monitored more carefully today, there are still the weapons that were made before. Canada may not be the main country involved with nuclear weapons but Canada has still had history with one of the most destructive forces in the world. Some people may think that Canada had nothing to do with ther arms race but really the arms race is an important historical event that Canada was involved in due to the unfathomable amount of nuclear weapons made, and that there aren’t really any enforcements to stop these nuclear weapons....
Words: 675 - Pages: 3
...(icorr) of steel in concrete exposed to different environments. Reinforced concrete specimens with different fly ash replacement percentages and water to binder ratios (w/b) were studied in this paper. The specimens were subjected to two highly corrosive environments which are chloride and carbon dioxide. HCP and icorr were used to monitor the corrosion process. Results of this study demonstrate that both HCP and icorr indicated the same tendency, especially for corroded specimens after being exposed to chloride. This means that HCP can be used to inspect corrosion of steel due to chloride. In case of carbonation, concrete specimens with fly ash showed more negative potential values than concrete without fly ash. However, chloride exposure test exhibited that specimen with higher fly ash replacement corroded earlier. Moreover, HCP measurement presented different values between concrete exposed to chloride and carbon dioxide. There was an effect of carbonation to increase HCP during the initiation stage. A proper evaluation...
Words: 1271 - Pages: 6
...to break partnerships. He is one of the must have resources for a limited overs captain. NationalTeam:India Salary: $3millio NetWorth:$25Million Sponsors: Aircel , PepsiCO 9. Shahid Afridi (Pakistan) Boom-Boom’ Afridi brought the concept of a terrorizing finisher to the game. Anyone who watched his 37 ball hundred against Sri Lanka in 2000, the fastest ODI century then, isn’t likely to forget that innings in a hurry. Afridi held that record till New Year’s Day in 2014 when Corey Anderson bettered it by a solitary ball. Afridi is also a canny leg-spinner and not a part-timer. He has changed games with both bat and ball and has often proved to be India’s nemesis. Afridi currently plays only T20 cricket, having retired earlier from tests and from ODIs following the 2015 World Cup. NationalTeam:Pakistan Salary: $2.5million NetWorth:$27Million Sponsors: Head&Shoulders , Q-Mobile , PepsiCo 8. Yuvraj Singh (India) The Man of the Tournament in the 2011 World Cup, Yuvraj Singh, often referred to as The Prince, has given fans across the world numerous dazzling moments. Be it the six sixes off Stuart Broad in the 2007 T20 World Cup en-route to the fastest international fifty, or the spectacular 70 off 30 balls against the Aussies in the semi-finals of the same tournament, or the match-winning displays in the 2011 World Cup, Yuvraj Singh has proven himself to be a true...
Words: 1475 - Pages: 6
...(NaturalNews) Sunblock ingredients that wash off swimmers' skin and into the oceans form toxic chemicals that may be destructive to nearly all life in the oceans, according to a study conducted by researchers from the Mediterranean Institute for Advanced Studies in Spain and published in the journal Environmental Science & Technology. Sunscreens have long been made with the ingredients titanium dioxide and zinc oxide, which effectively block ultraviolet radiation from reaching the skin. In recent decades, sunscreen manufacturers have largely turned to using these ingredients in nanoparticle form. At such a tiny scale, these particles, 100,000 times smaller than the width of a human hair, have fundamentally different physical and chemical properties from what they do at the normal, everyday scale that we're used to. This means that sunscreens made with nanoparticles are less oily and easier to rub into the skin, but their health and environmental properties are largely unknown. Nanoparticles form chemical that poisons ocean life Prior research has suggested that, in the presence of sunlight, titanium dioxide nanoparticles may react with water to form numerous potentially toxic chemicals, including hydrogen peroxide. High levels of hydrogen peroxide are known to be particularly lethal to microscopic algae known as phytoplankton, which form the base of the ocean's food web and are responsible for producing much of the Earth's oxygen. In the new study, researchers wanted...
Words: 670 - Pages: 3
...article answers the mail in terms of providing a nondestructive inspection (NDI) method to proactively ensure wiring integrity. – Editor INTRODUCTION Detecting and locating insulation defects in wiring systems is a nontrivial challenge. Ideally, the diagnostic should be nondestructive, capable of detecting a variety of insulation defects, such as cracking, chaffing, and abrasion, and be able to locate the defect accurately to reduce potential inspection and maintenance costs. The diagnostic should also have a low rate of false detection. Complicating this quest is the nature of complex wiring systems. For example, aircraft wiring systems are comprised of harnesses containing periodically bound single wire pairs* which create highly non-uniform impedance characteristics due to the varying distance between wire pairs. Insulation defects may also be physically small, resulting in an immeasurable change in the impedance at the defect site. These characteristics tend to render impedance measuring or conventional time-domain-reflectometry (TDR)† concepts ineffective. Other approaches such as partial discharge or DC breakdown techniques may detect some types of insulation defects, but cannot locate them in complex impedance wiring systems (Figure 1). PULSE ARRESTED...
Words: 2780 - Pages: 12
...materMaterials and Processes in Design Unit 1 Assignment 2 Alicia Gingrich 1. The three basic components of an atom are protons, neutrons, and electrons. While protons hold a positive charge, electrons hold a negative charge and neutrons hold no charge whatsoever. Protons and neutrons occupy the center of an atom called the nucleus while electrons maintain orbits around the nucleus. 2. The four types of bonding arrangements of atoms are; ionic, covalent, metallic, and Van der Waals bonding. An ionic bond links different types of atoms through the attraction between positive and negative charges, similar to the way magnets work. While these bonds are generally not conductive many are soluble and will conduct electricity once combined with water. Covalent bonds are made when atoms share their ‘valence’ electrons. Valence electrons occupy the third orbit of an atom. A metallic bond is created among metallic atoms when some of the valence electrons separate and exist in a free state. The Van der Waals bond is created between neutral atoms. This bond is the secondary bond found in the long chains of large molecules that make polymers. 3. Larger grained metals are more plastic and ductile. The smaller the grain the harder a metal will become; thus, larger grains are much easier to deform. Grain size can be made smaller by more rapid cooling to harden a metal once one is finished shaping it. 4. Thermoplastics and thermosets can withstand a high amount...
Words: 527 - Pages: 3
...Selected Abstracts Pleiades 2013 paperid MEC01 MEC02 MEC03 MEC04 MEC05 MEC06 MEC07 MEC08 MEC09 MEC10 MEC11 MEC12 MEC13 MEC14 MEC15 MEC16 MEC17 MEC18 MEC19 MEC20 MEC21 MEC22 MEC23 MEC24 MEC25 MEC26 MEC27 MEC28 MEC29 MEC30 MEC31 MEC32 MEC33 MEC34 MEC35 author Satyam pandey Deenanath kulkarni Gururaj parande Akshata Habib Azeem daddimulla Bindiya DEEPIKA J CHOPRA Sourabh Gargatte Title Bio degradable composite material lift me Functionally graded composites NON DESTRUCTIVE TEST FABRICATION AND CHARACTERIZATION OF COMPOSITE A object oriented approach for vehicle simulation AUTOMATED ACUPRESSURE CHAIR PREPARATION & CHARACTERIZATION OF AL-5083 ALLOY COMPOSITES FLOATING ROTORS DISC BRAKING SYSTEM FOR commericial bikes Girish Sanjay STUDY AND OPTIMIZATION OF A PV PANEL Ranjit Simulation and evaluation of complex dielectric properties of composite materials AJAYRAJSINH B JHALA NANOBOTS (NANOTECHNOLOGY ROBOTS) Chetan Gaur FEA ANALYSIS OF FORMULA SAE (FSAE) CHASSIS SANDEEP MAUT Floating wind turbines Hardik Vora FACTORY AUTOMATION Pooja Maragi ROBOT BASED FOUNDRY AUTOMATION Santosh Parsekar Automated food cooking machine Akash shanbhag A brief review on work methodolgy-concurrent engineering MEHUL THAKAR Work place organisation using 5S Ketan R Patil FLEXIBLE MANUFACTURING SYSTEM Abhishek Joshi ZERO EMISSION ENGINE Abhay p pai HCNG and biodiesal operated dual fuel engine Abhishek. R. Kulkarni Advances in Hybrid Technology Pavan m jhakkapanavar Turbocharging and supercharging...
Words: 293 - Pages: 2
...The Affects of Abuse and Neglect Later in Life Word Count: 2,036 Literature Review The purpose of this study is to determine if child abuse and neglect affect social status, grade point averages (GPA), or psychological imbalances of individuals later in life. This study is important to address to the public of the long-term affects of abuse and neglect in relation to such topics. The subjects surveyed are college-aged students ranging from ages 18 to 25. This survey is based on abuse or neglect from the subject’s parents or guardians at any point from birth to age 16 or 18. The cut off age group is dependant upon how old the subject was once they moved out of the household. This study defines abuse as any form of intense ongoing verbal battery, unnecessary physical harm, or illegal sexual encounters directed to the subject via the parent or guardian. “The official federal definition of child abuse, state in the Federal Child Abuse Prevention and Treatment Act of 1974, states, ‘…the physical or mental injury, sexual abuse, negligent treatment, or maltreatment of a child under the age of eighteen by a person who is responsible for the child’s welfare under circumstances which would indicate that the child’s health or welfare is harmed or threatened thereby’” (Gelles 1985). This study defines neglect as any form of lack of physical, cognitive, or affective care and support for the subject via parent or guardian. Physical care and support is based on the behavioral...
Words: 2329 - Pages: 10
