The COVID-19 pandemic has significantly impacted project implementation costs and caused delays across numerous industries. Various analysis found in the literature show that the predominant cause of project delays and higher costs have been people, material, and equipment movement restrictions, supply chain disruptions, and social distancing polic...

By Ilija Stojanović, Marko Selaković, Marija Gačić, Milica Kaplarević, Nenad Filipović

Nowadays, the finite element method has been widely applied in product calculation and design. One of the critical parameters in finite element modeling are the parameters in the material behavior model. In this study, an inverse procedure determines the values of parameters in the behavior model of anisotropic materials. First, optimization algori...

By Dao Lien Tien, Viet Dung Luong

In this paper, a new design of solar air-water heater for the purpose of performance improvement is introduced for the first time. This thermal system will be a good alternative for both space heating and providing domestic hot water for use in buildings. In the proposed solar collector, the absorbed incoming solar irradiation is transferred into b...

By Seyyed Abdolreza Gandjalikhan Nassab

In this paper, a new design of solar air-water heater for the purpose of performance improvement is introduced for the first time. This thermal system will be a good alternative for both space heating and providing domestic hot water for use in buildings. In the proposed solar collector, the absorbed incoming solar irradiation is transferred into b...

By Seyyed Abdolreza Gandjalikhan Nassab

In this paper, an adaptive controller is applied to the piezoelectric actuators, PEA, in order to handle them. Our paper deals with the design of a new adaptive neuro-fast terminal sliding mode controller. The new adaptive control law using the terminal attractor concept is used in the finite time control procedure of the non-linear model. The PEA ...

By Ounissi Amor, Azeddine Kaddouri, Rachid Abdessemed

The previously formulated finite element for lung mechanics (MSCL) by the author is extended to include airflow and molecular transport by diffusion. The lung mechanics is analyzed in detail providing an insight into the deformation of the microstructural elements. Also, some refinements are introduced with respect to the previous model. Here, the ...

By Miloš Kojić

The biomechanical properties’ changes of the abdominal aortic aneurysms’ (AAA) walls are closely related to the pathological degeneration of the smooth muscle cells and the main fibrous components (collagen and elastin). In this study, the passive mechanical response of the aneurysmal aortic wall is computation...

By Bouteraa Samira, Bouaricha Amor, Zemouri Zahia, Berkani Mahièddine

Nowadays, numerical simulation methods have been widely applied in product design and development, especially in sandwich panel design. However, such numerical models need to be built to optimize calculation time. In this paper, we propose a finite element model to study the plastic mechanical behavior of corrugated sandwich panels. Accordingly, a ...

By Dao Lien Tien, Nguyen Thi Thu Phuong, Duong Pham Tuong Minh, Viet Dung Luong

In rocket engine nozzle design, flow separation is essential and, given the high temperatures and pressures in the thrust chamber, regenerative cooling is critical for maintaining the nozzle wall's integrity. This passage provides a summary of an in-depth numerical analysis of boundary layer separation and heat transfer within a 30°-15&A...

By Bensayah Khaled, Kamri Khadidja

Aerodynamic drag is still one of the main challenges facing the automotive industry. The design engineers are trying to develop novel techniques that could help to control the flow and optimize the shape of a vehicle to make it able to increase the base pressure drag at the wake region. The pressure drag is one of the main contributors to the aerod...

By Marouane Essahraoui, Rachid El Bouayadi, Mohammed El Ganaoui, Aouatif Saad