ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In this paper, an isotropic elastic damage analysis is presented by using a meshlessboundary element method (BEM) without internal cells. First, nonlinear boundary-domain integralequations are derived by using the fundamental solutions for undamaged, homogeneous, isotropic andlinear elastic solids and the concept of normalized displacements, which results in boundary-domainintegral equations without an involvement of the displacement gradients in the domain-integral. Then,the arising domain-integral due to the damage effects is converted into a boundary integral byapproximating the normalized displacements in the domain-integral by a series of prescribed radialbasis functions (RBF) and using the radial integration method (RIM). The damage variable used in thepaper is the ratio of the damaged area to the total area of the material, and an exponential evolutionequation for the damage variable is adopted. A numerical example is given to demonstrate theefficiency of the present meshless BEM
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.324-325.1261.pdf
