Type poisson

Type poisson

[POISSON]

Type poisson source google image : https://www.researchgate.net/profile/Navid_Yeganeh/post/Unloading-reloading_Poissons_ratio/attachment/59d624596cda7b8083a1f9d5/AS%3A381059792424960%401467863142242/download/2016-07-07_13-44-37.png