![]() It is applied to over 2000 data points of the grade H451 graphite.Įxcellent correlation is obtained by choosing h/sub 0/ to be the maximum grain size. ![]() This is done by introducing a fourth material parameter h/sub 0/ called the characteristic grain size. The present theory reconciles the effect of grain size, in addition to the effects of volume and stress distribution. A modified Weibull theory is developed to describe the strength of a granular brittle material. Example problems illustrating the capability and accuracy of the model are given. The theory is implemented by a user subroutine for ABAQUS. One of the fundamental assumptions for this development is that Mode 1 microfractures perpendicular to the direction of the principal stress contribute independently to the fast fracture. ![]() ![]() Abstract A statistical failure theory for brittle materials that traces its origins to the Weibull distribution function is developed for use in the general purpose ABAQUS finite element computer program. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |