- published: 22 Jul 2015
- views: 1442
Stress–strain analysis (or stress analysis) is an engineering discipline covering methods to determine the stresses and strains in materials and structures subjected to forces or loads.
Stress analysis is a primary task for civil, mechanical and aerospace engineers involved in the design of structures of all sizes, such as tunnels, bridges and dams, aircraft and rocket bodies, mechanical parts, and even plastic cutlery and staples. Stress analysis is also used in the maintenance of such structures, and to investigate the causes of structural failures.
Typically, the input data for stress analysis are a geometrical description of the structure, the properties of the materials used for its parts, how the parts are joined, and the maximum or typical forces that are expected to be applied to each point of the structure. The output data is typically a quantitative description of the stress over all those parts and joints, and the deformation caused by those stresses. The analysis may consider forces that vary with time, such as engine vibrations or the load of moving vehicles. In that case, the stresses and deformations will also be functions of time and space
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This video provides an introductory explanation on the significance of mechanical properties as it relates to engineering design. It also describes the characteristics of the stress-strain curve for a typical steel.
This video lecture will introduce you to concepts of Principal Stress, Principal Plane and Mohr's circle analysis. Here both 2D and 3D stress analysis using Mohr's circle method is explained well.
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Lecture Series on Strength of Materials by Prof. S. K. Bhattacharyya, Department of Civil Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
How to take Force-Displacement data from a tensile test and convert it to Stress-Strain using Microsoft Excel. *Please note that the force values used in this video are probably not accurate because the Structural Stress Analyzer machine had not been calibrated before the tensile test. Use this video as an analysis "how-to" only, not as a way to get accurate data points for brass.
Introduction to engineering stress-strain diagrams for metals. Made by faculty at the University of Colorado Boulder Department of Chemical and Biological Engineering. Reviewed by faculty from other academic institutions. Check out our Materials Science playlist at http://www.youtube.com/playlist?list=PLC9CE6BFBB0D003CD