نتایج جستجو برای: woven glass fiber

تعداد نتایج: 200877  

2004
M. Guden

Strain rate dependent compression behavior of a plain-weave S-2 glass fabric SC-15 epoxy (rubber toughened resin) composite plate, currently studied as the backing plate for composite armor applications, was determined in the through-thickness direction (normal to the fiber plane) in the strain rate regime of 1 10 4 to 1:1 10 s . In the studied strain rate regime, the modulus and failure streng...

ژورنال: :journal of dental school, shahid beheshti university of medical sciences 0
امیر قاسمی amir ghasemi dental school, shaheed beheshti university of medical sciences,tehran–iran ([email protected] )دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی نازلی صدرزاده nazli sadrzadeh مجید برگ ریزان majid bargrizan dental school, shaheed beheshti university of medical sciences,tehran–iranدانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی لیلا نصیری خانلر leila nasiri khanlar dental school, shaheed beheshti university of medical sciences,tehran–iranدانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی حمید فرهادی hamid farhadi

سابقه و هدف: کامپوزیت رزین ها در اتصال چند دندان به هم، شکننده می باشند. بنابراین، تحقیقات زیادی به منظور تقویت خصوصیات فیزیکی و دوام این مواد صورت گرفته که از جمله آنها می توان فایبرها را نام برد. این تحقیق با هدف بررسی اثرglass –fiber بر استحکام خمشی کامپوزیت رزین صورت گرفت.مواد و روش ها: تحقیق به صورت تجربی وin vitro بر روی 22 نمونه ( هر گروه 11 نمونه) به ابعاد mm 25×6×2 انجام شد. در گروه او...

2003
Jinhua Yang Katsushi Ikeuchi

We proposed a physics-based rendering method for reflection of woven textiles. Both reflection properties of fibers and yarns are taken into account, which are the primary factors affecting visual appearance of cloths. The reflection from fiber surfaces is analyzed using Kirchhoff diffraction theory, assuming a statistical surface. Yarns are usually consisted of a group of fibers and they are s...

The application of nanoparticles in order to enhance the composites properties has been recently attracted many researchers' attentions. To increase the mechanical and physical properties of the composites, the nanoparticles have no significant effect on the weight and nanostructure of composites. One of the well-known nanoparticles is the Nanoclay (NC) that have been widely used in industries ...

Journal: :international journal of advanced design and manufacturing technology 0
amir hossein shirani mohsen lohmousavi mehdi akhbari

abstract: in this paper, the results of experimental and numerical simulation of low velocity impact process have been carried out to investigate energy absorption of composite sandwich panels with 3d woven fabrics of glass fibers and epoxy resin. for this purpose, diagrams of force-displacement of the quasi-static and quasi-dynamic impact tests were studied. for the finite element simulation, ...

Azam Salimian

Glass fiber reinforced gypsum composites are new building materials that have been used in covering interior walls. Reinforcement by means of woven fabrics as a three dimensional material is an alternative to the use of short fibers. The application of appropriate fabrics can improve mechanical properties of gypsum composites. The aim of this research article is to investigate the effect of the...

Alireza Daneshkazemi elnaz karimian, Mohammad Hosein Amirzade Iranaq Mohammad Mehdi Jalili Bahabad Rahele Mirseifinejad

Introduction: the Restoration of endodontically treated teeth is critical, and the Awareness of stresses developed by oblique and vertical forces in restorative methods take a great role in treatment plans. Due to the anatomical shape and inherent form of the stress distribution premolars, could be lost by fractures. Some fractures such as vertical fracture which is probable in...

Journal: :Physica Status Solidi B-basic Solid State Physics 2021

Planar, rigid glass substrates support the formation of organic small-molecular semiconductor thin films with extended crystalline texture and distinct pleochroism (top in cover picture), visible by cross-polarized microscopy. Woven, soaking electrospun nanofiber mat disrupt growth, leading to submicron-sized crystallites embedded fiber mesh (bottom). The benefits tissue-like mats are that they...

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