Mechanics of Solids 6 min read
Dislocations
The Italian elastician and mathematician Vito Volterra introduced in 1905 the theory of the elastostatic stress and displacement fields created…
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Mechanics of Solids 3 min read
Stress concentrations and fracture
In 1898 G. Kirsch derived the solution for the stress distribution around a circular hole in a much larger plate…
Marine machinery Drawing 3 min read
PRODUCTION DRAWING LIMITS, FITS AND TOLERANCE
Limit system There are three terms used in the limit system: 1. Tolerance: Deviation from a basic value is defined as…
Mechanics of Solids 4 min read
The general theory of elasticity
Linear elasticity as a general three-dimensional theory began to be developed in the early 1820s based on Cauchy’s work. Simultaneously,…
Mechanics of Solids 4 min read
Beams, columns, plates, and shells
The 1700s and early 1800s were a productive period during which the mechanics of simple elastic structural elements were developed—well…
Marine machinery Drawing 3 min read
Notes on hatching of sections
Hatching is generally used to show areas of sections. The simplest form of hatching may be based upon continuous thin…
Mechanics of Solids 3 min read
Concepts of stress, strain, and elasticity
The English scientist Robert Hooke discovered in 1660, but published only in 1678, that for many materials the displacement under…
Mechanics of Solids 6 min read
Mechanics of solids
Mechanics of solids, science concerned with the stressing, deformation, and failure of solid materials and structures. What, then, is a…
Marine machinery Drawing 3 min read
Concept of sections, revolved and oblique sections
An orthographic projection of an object gives the external shape and details of the object clearly. We know that the…
Marine machinery Drawing 2 min read
Pipe Thread Cutting Machine
The most important element of any machine is screw threads without screw threads. There can not be any development in…
Interesting Facts 3 min read
The Most Scenic Flight Routes in Asia
The most scenic flight routes in Asia – seven wonderful possibilities to make traveling more enjoyable. Sometimes the best holiday…
Marine machinery Drawing 5 min read
Weld Defects and Weld Quality Testing
Every weld joint is inspected by a team of trained inspectors for weld defects. Welding defects may arise due to…
