A Numerical Investigation of Interface Properties on Damage Behavior of Fiber Reinforced Composites

Mohamad Palizvan; Mohammad Tahaie Abadi; Mohammad Homayoun Sadr

Volume 11.1, Issue 2 , October 2018, Pages 1-7

http://dx.doi.org/10.22034/jast.2018.145217

Abstract
  This paper investigates the micromechanical damage behavior of composite materials on the transverse tensile response of representative volume elements (RVEs) with various fiber volume fractions. A new algorithm is developed to generate the random distribution of fibers in the RVE, and it is possible ...  Read More

Output Feedback Second-Order Sliding Mode Control of Spacecraft

Farhad Fani saberi; Ali Kasiri

Volume 11.1, Issue 2 , October 2018, Pages 9-15

http://dx.doi.org/10.22034/jast.2018.145361

Abstract
  This paper studies an output feedback second-order sliding mode control problem of spacecraft attitude control in the presence of the inertia tensor uncertainty and external disturbance. Mathematical modeling is presented based on spacecraft nonlinear equations of motion and quaternion parameters. Firstly, ...  Read More

Numerical analysis and material Determination of Cessna 150 Aircraft using FSI Analysis Method

Mohammad Reza Hashemi; Farhad Salek; Alireza Naghavi Moghaddam

Volume 11.1, Issue 2 , October 2018, Pages 15-19

http://dx.doi.org/10.22034/jast.2018.145603

Abstract
  Nowadays, Light aircrafts play key role in the aviation industry. Therefore, it is important to select the right equipment in airplane propulsion system. In this paper, at first, airplane propulsion system blades are designed in SOLIDWORKS software, then they are analyzed in ANSYS software using fluid-structure ...  Read More

WENO families in accuracy and computational costs

Alireza Moghaddasi; Mohammad Hassan Djavareshkian

Volume 11.1, Issue 2 , October 2018, Pages 20-29

http://dx.doi.org/10.22034/jast.2018.145644

Abstract
  In this paper a comparison of Weighted Essentially Non-Oscillatory (WENO) scheme is presented and different kinds are compared. High resolution schemes are one of the best ways decreasing the cost of processes and also increasing the resolution as is clear. Different WENO’s influence on the weights ...  Read More

Effect of fuel injector on the performance of a gas turbine combustor

Mohammadreza Nozari; Sadegh Tabejamaat; Hasan Sadeghizade; Majid Aghayari

Volume 11.1, Issue 2 , October 2018, Pages 30-36

http://dx.doi.org/10.22034/jast.2018.145664

Abstract
  The influence of fuel injector on the performance parameters of a can-type combustor were examined experimentally using LPG fuel and at atmospheric conditions. The first injector is a typical 45° conical injector with 6 holes on its curved surface, and the second injector is a swirl injector with ...  Read More

Velocity and Body Rate Control of a Spacecraft Using Robust Passivity-Based Control

H. Chenarani; T. Binazadeh; M.H Shafiei

Volume 11.1, Issue 2 , October 2018, Pages 37-44

http://dx.doi.org/10.22034/jast.2018.146009

Abstract
  This paper considers the problem of asymptotic stabilizing of velocity and body rates of a spacecraft in the presence of uncertainties and external disturbances. One of the important methods in controller design for nonlinear systems; is designing based on the passivity concept. This concept which provides ...  Read More