Got a tricky question? Receive an answer from students like you! Try us!

engineering materials - Coursework Example

Free
Author : santinohomenick
Download 0

Summary

Engineering Materials Q1. It is the brittle feature that holds together the atoms of a material. As reported in Standard (2005), it has been proved that ceramics are made up of either covalent or ionic bonds; sometime both these bonds are seen in ceramics…

Extract of sample
engineering materials

As a result, the negative mobile electrons keep the positive ions close together and thereby make material harder to break. Q2. Glasses generally possess low tensile strength as they are amorphous solid. To illustrate, the molecules of the glass do not constitute any specific internal structure. These molecules are arranged disorderly and do not hold to one another very strongly. In addition, glass is very similar to a slowly moving liquid so that old pieces of glass seem thicker at the bottom than at the top. In order to increase the tensile strength of the glass, the molecules must keep very strong hold with one another. Surface finishing and ion-exchange are two chemical processes that are applied to strengthen glass materials (Chemically strengthened glass, 2011). Q3. The Giffith’s theory reflects the relationship between crack length at fracture and applied nominal stress. It is a comprehensive equation that can be effectively employed for engineering purposes. Giffith’s theory says that steel is a safer engineering material than glass. It is experimentally proved that the stress required to fracture a glass is nearly 100 MPa. It indicates that comparatively a smaller stress is enough to fracture a glass and therefore, this material is not advisable for engineering purposes. ...
Download paper

Related Essays

Finance Analysis of Jones Limited(small, specialist marine engineering company based in Aberdeen)
Payback period for the investment of £250,000 needed to generate the earnings of £125,000 …
9 pages (2259 words)
engineering
Identify the problem. 2. Find the best solution quickly. 3. Carry out the solution. 4. Get a routine follow-up afterwards. 5. Make sure to check with your doctor occasionally. 1.4: (30 words) First I would completely clean and clear off the workspace. After that, I would lay out all the necessary materials, including the layout above everything and then start my assembly. 1.5: (125 words) Risk assessment in the engineering workshop includes making sure that everything is in place properly before and after work is begun. Hazards may be minimized by ensuring that all elements (whether they be…
4 pages (1004 words)
Dangerous Properties of Materials
Though all forms of mercury can cause effects in the central and peripheral nervous system, methyl mercury and metallic mercury are more harmful. Acute inhalation of metallic mercury vapours may cause damage to the lungs, nausea, diarrhea, increased blood pressure, skin rashes, eye irritation, chest pains, stomatitis, gingivitis, cough, dyspnea and salivation. Chronic exposure to high levels of metallic, inorganic, or organic mercury may cause permanent damage to brain, kidneys and developing fetus. Effects of chronic exposure on brain functioning may cause weakness, fatigue, weight loss,…
4 pages (1004 words)
Management Accounting - Materials Accounting / Absorption & Marginal Costing
The formats of management accounts are exclusively at the discretion of managers. However, financial reports must adhere to International Financial Reporting Standards and International Accounting Standards (Colin 2007). This makes financial reports virtually standardized while management accounting formats and systems vary widely among and within organizations. Financial accounting deals with financial information in monetary terms while management accounting deals with both monetary and non monetary. Financial accountings represent collection of entities, operations and activities for the…
5 pages (1255 words)
TBM case
ence we are able to determine total production per unit as follows: Product (Valves) Explanation Cost Manufacturing overhead (4.39% X 4) 17.548 Materials   $16 Direct labor based on run labor (16% X 0.25) 4 Total standard cost   $38 Pumps     Manufacturing overhead (4.39% X 8) 35.096 Materials   $20 Direct labor based on run labor (16 X 0.50) 8 Total standard cost   $63 Flow Controllers     Direct labor based on run labor (16 X 0.40) 6.4 Materials   $22 Manufacturing overhead (4.39% X 6.4) 28.0768 Total standard cost   $56 2. No change Contribution margin = Sales - variable cost…
4 pages (1004 words)
Accounts Report for JT Engineering
Net profit margin, on the other hand analyzes the profitability of the company before deducting the taxation and finance charges from the earningsThe statement of financial position tells the shareholder above the financial outlook of a company and the status of the assets and liabilities. Statement of financial position is usually divided into three parts, Assets, Liabilities and Shareholder equity. Assets are further divided into non-current assets and current assets whereas liabilities are divided in to non-current and current as well. Usually a company which has higher assets base and…
2 pages (502 words)
Planning and Controlling Purchases and Materials Usage
Budgeting is an important tool adopted by the company for planning and controlling purchases and materials usage. Sales forecast is the basis for planning and budgeting after carefully considering various factors such as capacity available and product mix. Since inventory involves significant investment, keeping it at an optimum level is very important for controlling cost. Material requirement planning is carried out in line with the production schedule for the year. Importance of study Home appliances market is very competitive. The company’s products face stiff competition from the…
6 pages (1506 words)