Download Materials Selection and Design by Md Abdul Maleque, Mohd Sapuan Salit PDF

By Md Abdul Maleque, Mohd Sapuan Salit

This e-book provides subject matters at the fundamentals of fabrics choice and layout with a purpose to provide a greater knowing at the choice tools after which locate appropriate fabrics for the functions. This booklet attracts the easy and simple quantitative equipment by means of knowledge-based professional process technique with actual and tangible case stories to teach how undergraduate or post-graduate scholars or engineers can observe their wisdom on fabrics choice and layout. issues mentioned during this ebook comprise designated good points similar to representation, tables and educational questions for simple knowing. a number of released books or records can be found, for this reason this publication could be very valuable if you use (or are looking to use) fabrics choice technique with out the benefits of having had finished wisdom or services during this fabrics’ world.

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Selecting the best materials is not an easy task because various criteria that influence the selection process need to be considered. Typically, for most of the design the materials selection process begins by reviewing the materials data sheets provided by the material supplier. Without a systematic materials selection system, it is difficult to carry out a proper product design. Many computer aided systems are available materials’ selection such as expert system, analytical hierarchy process and neural network.

This lower limiting value of the critical stress intensity factor is called the plane strain fracture toughness and is denoted by K1c. This factor is solely a property of the material. It is the value commonly used in design for all but the very thin sheets; it being the lowest value of the critical stress intensity factor and hence the safest value to use. The lower the value of K1c means the less tough the material is assumed to be. 2 shows difference between stress intensity factor (SIF) and fracture toughness (FT).

One way of arresting the progress of such a crack is to drill a hole at the end of the crack to increase its radius and so reduce the stress concentration. A crack in a ductile material is less likely to lead to failure than in a brittle material because a high stress concentration at the end of a notch leads to plastic flow and so an increase in the radius of the tip of the notch. The result is then a decrease in the stress concentration. 2 Speed of Loading Another factor which can affect the fracture of a material is the speed of loading.

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