World Journal of Engineering: Volume 16 Issue 5

Microstructural evolution and microhardness response of H11 hot forging dies

Sam Joshy, Jayadevan K.R., Ramesh A., Mahipal D.

The prime task of research in hot forging industry is to improve the service life of forging dies. The in-service microstructural changes that may occur in a die during hot…

The net primary productivity of early Permian peatland and their control factors: evidenced by the no. 6 coal seam of Jungar coalfield in North China

Yijun Hou, Dongdong Wang, Guoqi Dong

The purpose of this paper is to take the early Permian no.6 coal seam in Jungar coalfield of North China as an example, this paper studied the net primary productivity (NPP) level…

Simplified frequency-independent model for vertical vibrations of surface circular foundations

Amina Zahafi, Mohamed Hadid

This paper aims to simplify a new frequency-independent model to calculate vertical vibration of rigid circular foundation resting on homogenous half-space and subjected to…

A practical tool for the stability estimation of underground quarries in North France

Faten Rafeh, Hussein Mroueh, Karim Hitti, Sebastien Burlon

The presence of underground quarries in North France in close proximity to urbanized areas, imposes serious problems in terms of security of both people and constructions at one…

Influence of loading conditions on wear behaviour of H11 tool steel

Sam Joshy, Jayadevan K.R., Ramesh A., Mahipal D.

In hot forging, a significant amount of forging force is used for overcoming frictional force at the die-billet interface. The high frictional force along with thermomechanical…

Performance investigation of a solar-driven ejector refrigeration cycle

B. Saleh, Ayman A. Aly, M. Alsehli, M.M. Bassuoni, A. Elfasakhany

This paper aims to investigate the performance and working fluids screening for an ejector refrigeration cycle (ERC) activated by solar energy. Several common and new…

Analyzing FG shells with large deformations and finite rotations

Mohammad Rezaiee-Pajand, Amir R. Masoodi

The purpose of this study is dedicated to use an efficient mixed strain finite element approach to develop a three-node triangular shell element. Moreover, large deformation…

Optimization of machining parameters under MQL turning of Ti-6Al-4V alloy with textured tool using multi-attribute decision-making methods

Rupinder Singh, Jasminder Singh Dureja, Manu Dogra, Jugraj Singh Randhawa

This paper aims to focus on the application of multi-attribute decision-making methods (MADMs) to ascertain the optimal machining parameters while turning Ti-6Al-4V alloy under…

Criteria for selection of current or voltage source converter in shunt active power filter structure

Ali Zafari, Mohammad Firoozian, Seyyed Jafar Fazeli Abelouei, Ahmad Azadi Hematabadi

Votage source converter (VSC) based or current source converter (CSC) based shunt active power filter (SAPF)? It is the main question in harmonic elimination project using…

Multi-criteria shape optimization of open-spandrel concrete arch bridges: Pareto front development and decision-making

Majid Pouraminian, Somayyeh Pourbakhshian

This paper aims to study the shape of the concrete arched bridge by particle swarm optimization algorithm.