Richard Ntenga
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View article: Microstructural, physico-mechanical and thermal characterization of materials based on epoxy resin reinforced of palm kernel shell powder Tenera type for a view to a structural application
Microstructural, physico-mechanical and thermal characterization of materials based on epoxy resin reinforced of palm kernel shell powder Tenera type for a view to a structural application Open
This work promotes the use of palm kernel shell powders associated with epoxy resin for the design of composite materials. Powders identification is carried out by FTIR analyses with vibrational movements. The crystalline character highlig…
View article: Extraction, Applications and Characterization of Plant Fibers
Extraction, Applications and Characterization of Plant Fibers Open
During the second half of the twentieth century, industrial and scientific interests in plant fibers (PFs) have resulted in their resounding comeback as engineering materials. This chapter is concerned with the characterization of PF mater…
View article: Generalized homogenization model of piezoelectric materials for ultrasonic transducer applications
Generalized homogenization model of piezoelectric materials for ultrasonic transducer applications Open
Although piezocomposite (PC) materials have increasingly attracted researchers, there is still a need to properly and easily derive their properties. We develop a generalized homogenization model (GHM) that accounts for Smith and Cha appro…
View article: Predicting the Relaxation Modulus for the Study of the Delayed Behaviour of Kenaf Fibres in Stress Relaxation
Predicting the Relaxation Modulus for the Study of the Delayed Behaviour of Kenaf Fibres in Stress Relaxation Open
Plant fibres (PFs) are preferred reinforcements of bio-composites. Knowledge of their lifespan requires a study of their viscoelastic behaviour. In this paper, a stress relaxation analysis of kenaf fibres was performed at a constant rate o…
View article: Estimation of the Effects of the Cross-Head Speed and Temperature on the Mechanical Strength of Kenaf Bast Fibers Using Weibull and Monte-Carlo Statistics
Estimation of the Effects of the Cross-Head Speed and Temperature on the Mechanical Strength of Kenaf Bast Fibers Using Weibull and Monte-Carlo Statistics Open
Methods used by different researchers to evaluate plant fibers’ (PFs) mechanical performance, show great variance in results. In this work, 320 single kenaf fibers of gage lengths 10 and 20 mm were tensile-tested using four speed levels (0…
View article: Dataset on the microstructure morphology and elemental composition of the palm kernel shell and the coconut kernel shell by TEM/SEM and EDXA/EDS
Dataset on the microstructure morphology and elemental composition of the palm kernel shell and the coconut kernel shell by TEM/SEM and EDXA/EDS Open
Coconut kernel shell (CKS) and palm kernel shell (PKS) powders were analyzed using Surface Electron Microcopy (SEM) and Transmission Electron Microscopy (TEM). The SEM and TEM were combined with Energy Dispersive X-ray Spectroscopy Analysi…
View article: Numerical Simulations of Azobé/Urea Formaldehyde Wood Plastic Composite Behaviors under Charpy Impact and Low-Velocity Drop Weight Tests
Numerical Simulations of Azobé/Urea Formaldehyde Wood Plastic Composite Behaviors under Charpy Impact and Low-Velocity Drop Weight Tests Open
This work is concerned with the study of the influence of impactor’s velocity parameters, impactor’s geometry, the target plate properties, and thickness, on the response of a tropical wood plastic composite (WPC) Azobé/urea formaldehyde (…
View article: Insight on the Ultrastructure, Physicochemical, Thermal Characteristics and Applications of Palm Kernel Shells
Insight on the Ultrastructure, Physicochemical, Thermal Characteristics and Applications of Palm Kernel Shells Open
The ultrastructure and physicochemical and thermal properties of Palm Kernel Shells (PKS) in comparison with Coconut Kernel Shells (CKS) were investigated herein. Powder samples were prepared and characterized using Surface Electron Micros…
View article: Characterization of Tannin-Based Resins from the Barks of <i>Ficus platyphylla</i> and of <i>Vitellaria paradoxa</i>: Composites’ Performances and Applications
Characterization of Tannin-Based Resins from the Barks of <i>Ficus platyphylla</i> and of <i>Vitellaria paradoxa</i>: Composites’ Performances and Applications Open
This work investigates the physico-chemical and mechanical properties of tannins extracted from wood for composite materials manufacturing. Sustainable knowledge (in terms of physico-chemical properties and behaviours) of the material is n…