Zobrazeno 1 - 10
of 158
pro vyhledávání: '"Sayed A. Nassar"'
Publikováno v:
Journal of Advanced Joining Processes, Vol 5, Iss , Pp 100088- (2022)
This paper provides an experimental investigation of the effect of Thermally Expandable Particle (TEP) adhesive additive on the mechanical and reversibility performance of epoxy-bonded load single lap joints (SLJs). Joint substrates are made of alumi
Externí odkaz:
https://doaj.org/article/3fb33591241e481c9edef3cabc1fbbfe
Autor:
Chaiwat Sinthusiri, Sayed A. Nassar
Publikováno v:
Journal of Advanced Joining Processes, Vol 3, Iss , Pp 100055- (2021)
This study uses a numerically calibrated beam theory-based model to investigate a bolt load distributions in a preloaded two-bolt single lap joint under non-central tensile shear loading. Linear spring-based modeling is used for the two preloaded bol
Externí odkaz:
https://doaj.org/article/dd18e1de47ac4dbaa5804fb50a15ab78
Publikováno v:
Journal of Advanced Joining Processes, Vol 1, Iss , Pp 100004- (2020)
An experimentally validated fatigue model is proposed for the effect of mean stress on high-cycle fatigue performance of preloaded threaded fasteners. The proposed model is compared with commonly used models by Goodman, Gerber, Morrow, Soderberg, and
Externí odkaz:
https://doaj.org/article/b7b3318951724e20b2caab8a8a9ccba8
Autor:
Mohamed Abdlfattah Shaheen, Rabab Mohamed Elsoht, El-Sayed Abbas Nassar, Alyaa Ismail Mohamed
Publikováno v:
Journal of Advances in Medicine and Medical Research. :50-60
Background: Dry eye syndrome is a multifactorial disease of pre-corneal tear film that results in ocular discomfort, visual disturbance and tear film instability, with potential damage to the ocular surface. The aim of the work was to evaluate the oc
Autor:
El Sayed Abbas Nassar, Mohamed Abd El-Fatah Shaheen, Said Mohamad Shalaby, Alaa Mohamed Abd Elhameed Shalaby
Publikováno v:
Journal of Advances in Medicine and Medical Research. :51-62
Background: Primary open-angle glaucoma (POAG) is the leading cause of irreversible blindness worldwide. This condition is distinguished by progressive optic neuropathy, excavation of the optic disc, and characteristic visual field abnormalities. Int
Publikováno v:
Journal of Advances in Medicine and Medical Research. :148-155
Background: Corneal biomechanics is the study of the mechanical properties and responses of the cornea to external forces. Two devices are currently available for characterizing the corneal biomechanical properties in a clinical setting; Ocular Respo
Autor:
Matthew Burczyk, Sayed A. Nassar
Publikováno v:
Volume 2A: Advanced Manufacturing.
The effect of cyclic corrosion on the static strength performance and reversibility performance of multi-material single lap joints is investigated. Aluminum substrates are adhesively bonded to Carbon-Fiber-Reinforced thermoplastic composite substrat
Publikováno v:
Volume 2A: Advanced Manufacturing.
This study investigates the effect of autoclave curing variables on the glass transition temperature of and the degree of cure and strength of epoxy film adhesive single lap joints (SLJs) under static tensile shear loading. Studied autoclave variable
Autor:
Francesco Robusto, Sayed A. Nassar, Joon Ha Lee, Marco Gerini-Romagnoli, Massimiliano De Agostinis
Publikováno v:
Volume 2A: Advanced Manufacturing.
This study investigates the effect of shot-peened additively manufactured aluminum parts on the torque-tension relationship of threaded joints, as compared to extruded components. Steel flange head bolts are utilized. A computer-controlled RS torque-
Publikováno v:
Volume 2A: Advanced Manufacturing.
A two-dimensional elastic analytical model for bonded single lap joints subjected to heat and moisture diffusion is presented. The distributions of peel and shear stress in the bond area are calculated. Local moisture concentration and bondline tempe