How Cooling Tower Works
Selection of cooling tower (CT) depends upon the application and surrounding conditions. It is the cost effective heat removal solution used for removing large heat load. How Cooling Tower Works…
Involute gear vs. Cycloidal gear
On the basis of gear tooth profiles gears can be either involute gear or cycloidal gear. Most of the applications use involute gear. What are the benefits of involute gear? We will compare involute gear vs. cycloidal gear in this article.
How to design a helical compression spring
Helical spring is a vital element for many machines and most of the time helical compression spring is used rather than helical tension spring. This article will talk specifically about design of helical compression spring. More over, we will not consider buckling for spring design, non circular spring wire and non linear springs here.
How to draw free body diagram
Free body diagram is a method of representing practical complex force systems in a simpler way. In FBD the outer boundary/boundaries of the body of interest is represented. Supports of actual body are replaced by suitable reaction forces / moments in free body diagram (FBD).
Force analysis of truss
You are a structural design engineer and you are in task of designing a truss, the first thing you have to do is analysis of truss to find out the…
Difference between frame and truss
Many times in our daily engineering work life the words truss and frame are used in place of each other, though they have many similarities but there exist some differences…
How to create and use Mohr’s circle Diagram
Mohr’s circle is an important tool used for visualizing relations between normal stresses, maximum principal stresses, shear stresses and maximum shear stresses. Mohr circle diagram was developed by Christian Otto…
Difference between Ductile and brittle materials
The materials which elongates more than 5% before fracture is called ductile material otherwise brittle materials. Gold, silver, copper are typical example ductile materials and cast iron, concrete are brittle…
Theories of failure for brittle materials (part-3): Maximum principal stress theory
Maximum principal stress theory is useful for brittle materials. Maximum principal stress theory or maximum principal stress criterion states that failure will occur when maximum principal stress developed in a…
How to find principal stress and principal plane of a complex stress system?
The complication of a stress system increases with increase of number of applied multi directional normal and shear stress. One very interesting and important fact about the complex stress system…