Carbon Fibre Composite

Carbon Fibre Composite Strength of Laminated Fibrous Composites Lab Summary This report compares the results of theoretical calculations undertaken to predict the tensile strength of carbon fibre reinforced composites against experimental results. Two main methods for the calculation of tensile strength are used; the rule of mixtures and the ten percent rule. These standard theories appear to be valid for the majority of cases although inconsistencies are observed for the 90Â °, transversely loaded, isostress condition. Aims To become familiar with composite materials, their structure and quality To understand how carbon fibre reinforced polymer, CFRP, materials are tensile tested Objectives To examine samples of composites and their precursors Examine typical microstructure Tensile test different samples of CFRP composites Introduction This work looks at the tensile strength of different structural make-ups of carbon fibre reinforced polymers. Carbon fibres have greatest strength when they are loaded in the isostrain (0Â °) condition as illustrated in Figure 4.1. In the isostrain condition, the majority of the applied load is transferred to the long fibre strands whereas in the isostress condition, the load is acting perpendicular to the fibre length and yields a far lower maximum strength. When there are multiple layers of fibres in the composite, orientated in different directions, otherwise known as a mixed ply lay-up, the maximum tensile strength varies with respect to the fibre angle. Figure 4.1 Composite Loading Four different composite lay-up structures are looked at in this report. Each lay-up consists of a total of 16 layers which are symmetrical about the neutral axis. The layups of the composites are: Where subscripts: 2, 4, 8 = multiple of layers noted in the brackets S= refers to symmetry about the neutral axis A [ 0Â ° ]8S B [ 90Â ° ]8S C [ +45Â °,-45Â ° ]4S D [0Â °/+45Â °/-45Â °/90Â °]2S The test specimens consist of a section of CFRP with metal plates attached with epoxy resin at either end as shown later on in Figure 5.1. These metal plates are purely for clamping of the CFFP section into the in the tensile testing rig as shown in Figure 5.2. Experimental Method The dimensions of the test specimens are noted for each piece prior to any testing and will be used for fair comparison in the theoretical calculation methods. Dimensions for each specimen, A-D are shown below where x and y relate to the dimensions shown in Figure 5.1.

Article; Train Fares Essay

Train fares go off the rails. Are train fares becoming affordable for only the rich? Travel is ridiculously expensive: bus train or taxi, but especially the train. As trains are used by many people for various reasons to travel: to and from work; to and from school; to and from visiting family or holidays. They are used daily, and can be used by anyone any age, to anywhere they need, and this is why trains shouldn't be so expensive.Trains are know as being the quickest,most efficient type of transport, as they travel through many different towns all over the country, and because they have professionals driving them already, they allow you to work on the move- something you can't do whilst driving. But the train isn't as great as they make it out to be, Dan Lane a business worker who travels by train to get to work everyday quoted ‘The price of a train ticket is absolutely ridiculous, I have to pay at least ? 200 a month to travel to and from work. I don't really earn alot, and most the money I do earn is mostly spend on buying more train tickets.I Could travel by car for a cheaper price, but i cannot afford a car, and I don't have a drivers licence. † Great Western obviously don't think the prices are enough, so keep rising them more. On average they earn ? 2 billion a year, but want more. High rail fares at peak times could be adding to ‘social exclusion' as the high prices are barring poorer people from using trains because they cannot afford a ticket; Because poorer people are less fortunate to use the train, they could be forced on dependence of cars, but to some could still not be accessible.As they are employed in different towns, they will need to find a way of transport, so many rely on using the train, but could be finding it difficult to pay to use it everyday. Train fares are highly expensive, and still rising to outrageous prices. Some are even finding it too much to pay for; housing, food, children, families and paying up to ? 200 on fares, they could end up finding theirselfs with very little money.If train fares continue to rise, and stay unable to keep affording tickets, it could consequence to them being forced either out of work because of unable access to get their destination, or forced out of their homes because they could end up unable to afford to live their any more. On the subject of ridiculous prices- Great Western made a ? 2 billion profit last year, -No wonder! Prices rose by an outrageous 50%. These rises in price could be the reason families have to relocate or change jobs- because the new locations could make their transport a whole load cheaper and quicker.Many people like visiting their families or friends, and may have to use the train to get their, which could be a problem because transport is essential and they could simply not afford it. Great Western managers don't realize they are preventing people from seeing: family, friends, going to work, or going to school. They only care about making the money, they don't care about their passengers. Some people simply can not afford the ridiculous price of just 1 train ticket. This year has flew by, leaving Christmas very soon.This means that people will be traveling to towns to do their Christmas shopping, which they need their money for, not to spend on a little piece of paper. Also people struggle to afford Christmas because they need to use the train to visit their families all over the place. John Lunton, 60 who is retired is angry with what is going on with the prices and wants to do something about it. â€Å"The prices when I was a teenager is what the prices should still be now, as they were reasonable. The prices have over doubled since then and I think it is absolutely ridiculous.I need to travel because I have Grandchildren and other family all over Britain, and I would like to see them over Christmas. Sadly, I cannot afford to travel to see all of them, but if I do choose to, then it would result in me not looking after myself by not eating, because I will need the money to travel. † A major problem with trains, is how managers allow them to get so overcrowded,which could be bad for others health, some people are claustrophobic so it could be bad for their health. Also trains are dirty and their is litter all over the floors, there are security cameras but they don't seem to help with anything at all.Trains are sometimes late and delayed, this shouldn't happen, as people need to get to work and if the train is late, and results in them being late for work, it could cost them their job. Trains show absolutely no sign of improvement for the conditions and them being on time, but which they should. Do the government care about their passengers and wasting their money? I think not. As long as their making their nice, big comfortable profits, they don't care who their passengers are, and how much they charge them.In my opinion, I think that the prices should be lowered to suit the co nditions of the trains, which would be quite low, but would result in them not making as much money. Oh no, What a shame! I'm not surprised that British citizens complain about the prices of train fares, as Britain has the highest price of train fares in the whole of Europe. The railway has been described as being a ‘rich mans transport' because it is becoming affordable for the rich only. An example of the ridiculous prices is from Exeter to London– The price of a single way journey is ? 130 minimum price. this shows how outrageous our county is getting.Many people have described ‘First group' as being ‘Worse group' and some people have even be complaining. So why are train fares so expensive? to get money for themselves, not caring abut other peoples money, as long as they have as much as they desire. Trains are used by many people for various reasons, therefore the prices should be reduced. but if the rising prices continues, they could lose customers, de scribed as ‘price increase= Passenger decrease. ‘ So if they want to maintain the high number of customers they are currently obtaining, they should either: lower the prices or stop rising them.

Performance Management Plan Essay

I have been gathering information to help analyze your business and to assist in giving you recommendations based on the business strategy you have compiled to increase performance of the employees and business. I will be looking at several objectives to help with the performance plan that your company will use to identify any area of improvement and to enhance on the areas of expertise. I understand that your expectations are as follows, Landslide Limousine will be at a negative $50,000 for the first year with the expectation of a growth of 5% over two years, and you are planning to have 25 employees with a turnover rate of 10%. To assist in explaining the plan I have in mind, I will break the plan into different subject topics for you to follow, and give explanations as well. A. Aligning performance to the business strategy When considering performance it is necessary to incorporate some type of performance appraisal program within the organization. This serves as a tool for the employees to work toward, with the proper appraisal program the employee will feel a since of ownership of their own behaviors and will have a benefit for achieving goals or objectives. This also gives the employee a  motivation to change positions and continue with a training program to enhance their own personal wealth within the organization. The employees will also feel more open in providing feedback to other employees, provide ideas and help to develop new employee’s skills as they learn the importance of enhancing their own skill set. Using a management by objective process will give the employees the objective to work toward, and will give the employee a standard of acceptable behaviors. Self-appraisals will be key in this realm, customer feedback, and continual monitoring will help to evaluate the performance of each individual. Immediate supervisors or managers will assist in the appraisal process, and you will be informed of the continual behavior of each employee on a regular basis. Customer feedback will be useful information as this will be one of the key elements in the appraisal as customer service is what will drive your business to the next level. Cascio, (2013). 2. Job analysis The skills necessary for the employee to have will be the basis of the job analysis. This is why it will be important to determine what skills are needed in this field. What measures will be used to evaluate each individual’s job or merit pay. We must define what job will require what skills and what will be the qualification for each position. By determining the job qualifications for each position will help in the selective process to find the right people for the right job. Mr. Stonefield, you will need to define the positions you will have within the organization by separating each skill set required and what each job title will need. This can be done with a job analysis; it should include the tasks required for each job by title. It will be necessary to determine what the limousine drivers will be expected to accomplish while transporting clients. The job can be also defined by how much lifting, long periods of downtime, ability to drive extended vehicles, and the skill set of the individual to navigate to different geographical areas within the region. The job must reflect the experience of the driver, their educational background, and what are their abilities or proven track records. 3. The organizational performance philosophy The rewards to excellence are the Landslide Limousine motto. The company  is committed to the best customer experience; this is measured by consistency, customer satisfaction, and continual development of the staff. 4. Measuring the employee’s abilities and continual skill enhancement Measuring employee skills is important to the performance of the individual; this provides continual feedback, coaching, and growth for the employee. The goals set for these individuals must be clear, concise, and obtainable, Cascio, (2013). Employees should have ongoing meetings with the management staff to reflect on achievements and goals set for future achievements. This setting should also encourage feedback from the employee; this will allow the employee to feel as though their suggestions count in the process of the growth of the organization. The objectives should have a clear vision of how each one will be achieved, using a graphic rating scale can assist in this process. The behavior anchored rating scale (BARS) can also help to analyze critical incidents and then compare these to the norm. Casico, (2013). 5. Addressing skill gaps within the organization A skills gap analysis identifies specific skills needed to complete any given task and then takes that information and compares it to the level of current requirements. This is completed by doing a skill assessment which will determine the skills needed for any of the particular jobs within the organization or job category (Cascio, 2013). Then by applying the assessment as a benchmark for the job you can develop a plan for the training process needed to assist the employees in their road to success. One must develop a list of skills per job and determine the knowledge needed for each role, and then once the skills are assessed and the training is planned out one must go through the skills needed to improve on these skills by reviewing with an appraisal review. According to (Lorri Freifield, 2014), transfer knowledge can assist in enhancing a technical talent through mentors helping employees to explore their best practices. 6. Delivering Performance through feedback Delivering performance is very important, I would suggest using a process of multi-rater or the 360-degree feedback. This uses observations from many aspects of a person in many roles. Cascio, (2013). The immediate supervisor or manager, co-worker and customers rate the employee through feedback form the performance of that individual that is observed. This will  assist with any self-evaluation error and the feedback from different areas will give a 360 view of the individual, this will assist in understanding how the employee is effective in their role. Observant views with others assist in keeping a fair and objective view of employees; this will also assist in continuing a fair and objective review process. Mr. Stonefield the performance management framework given outlines the steps necessary in reviewing standards of an individual and team by actual performance. When looking at the overall strategy of the company as a whole Landslide Limousine will need to minimize the turnover and enhance on the skill set to enhance the overall employee performance. It will be necessary to look into the best cost effective way to handle any performance management and by using the recommendations I have listed Landslide Limousine will be striving to the goal of being the best in the Austin Texas area. References Cascio, W. F. (2013). Managing Human Resources (9th ed.). New York, NY: The McGraw Hills Companies, Inc. Lorri Friefield. (2014). Training the Source for Professional Development Retrieved from http://www.trainingmag.com/solving-todays-skill-gaps

The Effects of Global Climate Change Essay - 1372 Words

There is damage being done to the environment everywhere right this very moment. What is causing the damage? Global climate change contributes a great amount of devastation to the world every day. This is important because the change is affecting humans, animals, plants and just about anything else that is living. As a result of global climate change, regions, ecosystems, and agriculture will be greatly affected. There are many things causing global climate change such as the burning of fossil fuels and deforestation. One may notice that these are both human-related activities. Humans contribute to a vast amount of damage through daily activities. Burning fossil fuels means using energy that is made up of decayed animals and plant†¦show more content†¦Through destroying trees and removing plant life, humans are contributing to global climate change. Primarily, global climate change may flush out large regions. One thing is that in the future, there may be huge losses of land and food because of the havoc that climate change is causing. â€Å"The potential future effects of global climate change include more frequent wildfires, longer periods of drought in some regions and an increase in the number, duration and intensity of tropical storms† (Earth Science and Communications Lab). There may be massive shifts in life on Earth due to the change in climate. According to ESCL, changes to North America include decreased snow, increase in yields, and increased heat waves. Yield means to produce an agricultural product. Without producing yields, humans would have fewer crops. In South America, savannah may replace tropical forest, species extinction, and extensive changes in water availability (The authorities of Earth Science Communications Lab). It could be dangerous for many species to go extinct because we could end up with a loss of biodiversity, or range of life in a certain habitat. Earth and Science Lab says that Africa will experience major wat er stress, reduction of yields by up to fifty percent, and agricultural production may be compromised. The compromise ofShow MoreRelatedGlobal Climate Change And Its Effects1582 Words   |  7 Pages​The global climate change was identified late 19th century with more and more greenhouse gases released into atmosphere by human activities. Carbon dioxide, a major human-produced greenhouse gas, accounts for more than 50% of direct contribution to the present-day reinforcing greenhouse gas effect. It is estimated that over half of the carbon dioxide comes from energy sector activities. 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