Local and Residual Stresses and Strains for Plate with Circular Hole - Maple Application Center
Application Center Applications Local and Residual Stresses and Strains for Plate with Circular Hole

## Local and Residual Stresses and Strains for Plate with Circular Hole

Author
: Jorge Durán
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This worksheet demonstrates the use of Maple for calculating local and residual stresses and strains distributions from a hole in plate under monotonic nominal loading and unloading using Neuber rule and Ramberg-Osgood type stress-strain relation. By obvious design considerations there are many cases in mechanical engineering where stress raisers are unavoidable. Independently the nominal stresses are very low, material on stress raisers could undergo plastic deformation. Then, local stresses (s) and strains (e) can not be then calculated by elastic stress concentration factor (kt). One of the most popular approximate methods for calculating local stresses and strains is using Neuber rule e.s = (kt.Sn)^2 / E, where (Sn) are the nominal stresses and (E) is the modulus of elasticity. Neuber rule requires an equation to describe the material stress-strain relation and Ramberg-Osgood equation is often used with this aim. A graphical or numerical solution is needed to find the local stresses and strains which satisfies both equations.

#### Application Details

Publish Date: September 17, 2002
Created In: Maple 8
Language: English

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engineering mechanics civil-engineering