Numerical investigation of the material gradient using different stiffness functions by consideration of the graded stiffness of the dragonfly wing membrane Afsaneh Vahdani; Abolfazl Darvizeh; Majid Alitavoli; Hamed Rajabi Volume 8, Issue 1, June 2021, Pages 1307-1316 10.22068/jstc.2020.133844.1675 View Article PDF 733.24 K