http://imechanica.org/taxonomy/term/1366 Comments for "scholarship" en http://imechanica.org/node/2001#comment-5439 <p> Dear All members; </p> <p> I am derived J_integral for dynamic crack propagation, and i have some things that i not yet understood: </p> <p> 1. Why is the integral path must start on one crack sureface and proceeds counter-clockwise to the oposite crack sureface. </p> <p> 2. Why is the value of J_integral independent the radius of integral path at each time increment. </p> <p> 3. What is the difference if we chose the far path and near (close to) path from the crack tip. &nbsp; </p> <p> Would you please explain for me, thank you very much, </p> <p> Best Regards, </p> <p> Chau.&nbsp; </p> <br class="clear" /> Sat, 29 Sep 2007 03:19:55 -0400 Nguyen Chau Linh comment 5439 at http://imechanica.org