I am hoping someone has some historical knowledge of some
interesting mechanics, or just an interest to discuss it. A superposition principle is widely used to solve crack problems, with illustrations like these:
http://ars.sciencedirect.com/content/image/1-s2.0-S0142112308002211-gr1.jpg
http://ars.els-cdn.com/content/image/1-s2.0-S0142112399000778-gr2.gif
Hi all,
[Warning: The writing is long, as is usually the case with my posts :)]
It all began with a paper that I proposed for an upcoming conference in India. The extended abstract got accepted, of course, but my work is still in progress, and today I am not sure if I can meet the deadline. So, I may perhaps withdraw it, and then submit a longer version of it to a journal, later.
What is stress? Who has ever seen stress? Is stress a physical quantity?
Professor Yi-Heng Chen, Xi’an Jiaotong University, 710049, P.R.China
e-mail: yhchen2 [at] mail.xjtu.edu.cn (yhchen2[at]mail[dot]xjtu[dot]edu[dot]cn)
In fact, this question has been bothering the present author for more than 15 years.
