Mojtaba Shariati - Department of Mechanical Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Mohammad Shishesaz - Department of Mechanical Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Hossein Sahbafar - School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Mortaza Pourabdy - Department of Mechanical Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Mohammad Hosseini - Department of Mechanical Engineering, University of Hormozgan, Bandar Abbas, Iran

Classical theories do not have the ability to study the behavior of materials at the nanoscale. Accordingly, new theories have been developed to predict the behavior of materials at the nanoscale. Some of these theories are nonlocal elasticity, strain gradient theory, couple stress theory and surface effect theory. In most articles, the authors use differential form of nonlocal elasticity theory. Recently, a number of authors have used the integral form of this theory and obtained interesting results. Therefore, in this research, articles related to the integral form of non-local theory have been examined for small-scale tubes, beams, shells, and plates.

Nonlocal Elasticity Theory, stress-driven method, strain-driven method, strain gradient model, Functionally Graded Material, Scale parameter