کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
802023 | 904335 | 2007 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Evolution of fabric tensors in damage mechanics of solids with micro-cracks: Part II – Evolution of length and orientation of micro-cracks with an application to uniaxial tension Evolution of fabric tensors in damage mechanics of solids with micro-cracks: Part II – Evolution of length and orientation of micro-cracks with an application to uniaxial tension](/preview/png/802023.png)
In Part II of this work, the equations of thermodynamics are employed in order to derive the exact evolution equations of the fabric tensors defined in Part I (companion paper). In this regard, a thermodynamic force that is associated with the fabric tensor is defined and utilized in the derivation of the evolution equations. A special case of uniaxial tension is solved in order to illustrate the theory.We also derive specific uncoupled equations for the evolution of the length and orientation of micro-cracks. In this regard, some interesting results are obtained. It is concluded that the micro-crack length and orientation cannot evolve simultaneously for the same set of micro-cracks. However, two different sets of micro-cracks may be considered in the same RVE where in one set the micro-crack length evolves, while in the second set the micro-crack orientation evolves.
Journal: Mechanics Research Communications - Volume 34, Issue 2, March 2007, Pages 155–163