نتایج جستجو برای: gfrp composite
تعداد نتایج: 122756 فیلتر نتایج به سال:
Soil reinforcement can be considered as the combination of two parts. One part is soil for compressive stress capacity and another part is some material such as geosynthetics such as steel belts and fibers for tensile stress capacity. Soil improvement is one of the useful methods to increase the strength parameters of the soil. The main goal of this study is to evaluate the effects of GFRP on t...
Present time the main issue of automobile industry are weight reduction. The automobile industry has looking for any implementation or modification to reduce the weight of the vehicle. The suspension leaf spring is one of the potential items for weight reduction in automobile as it accounts for 10% to 20% of the unsprung weight. The introduction of composite leaf spring made of glass fiber rein...
There are numerous engineering applications where Glass Fiber Reinforced Polymer (GFRP) composite tubes utilized, such as desalination plants, power transmission systems, and paper mill, well marine, industries. Some type of machining is required for those various either joining or fitting procedures. Machining GFRP has certain difficulties that may damage the tube itself because fiber delamina...
The Los Alamos National Laboratory (LANL) in partnership w~h Composite Optics Incorporated (COl), is advancing the development of low-cost, light-weight composite technology for use in small satellites. The use of advance composites in space applications is well-developed, but the application of an all-composite satellite bus has never been achieved. In this paper, we investigate the applicatio...
The present study introduces two quantitative parameters to compare the accuracy of ultrasonic C-scan testing and X-ray radiography methods in the damaged area detection under low-velocity impact in polymer-based composites. For this purpose, the hand lay-up technique of composite processing was employed to prepare the composite specimen. A composite specimen consisting of the glass fiber reinf...
Some of the advantages that results from the structural strengthening of concrete slabs using prestressed fiber reinforced polymer (FRP) systems are as follows: the prestressed FRP delays the formation and propagation of cracks, and both the serviceability and the flexural capacity are increased. In this research program, the flexural performance of a concrete slab strengthened with a three-sta...
آرماتورهای FRP با مقاومت قابل توجه در برابر خوردگی منجر به بهبود در عملکرد سازههای بتنی مسلح و کاهش قابل توجه هزینهها میشوند. از دیگر ویژگیهای آنها نسبت بالای مقاومت کششی به وزن ، نارسانا و غیرمغناطیس بودن آن میباشد. آییننامههای طراحی بین الملل اخیر از قبیلACI 440.1R-15 استفاده از آرماتورهای FRP را در فشار مجاز ننمودهاند و در محاسبات با بتن جایگزین میکنند. در این پژوهش، به منظور پیشبی...
در این مطالعه، مدل سازی آزمایشگاهی محصورسازی المان های فشاری بتنی، با استفاده از ورق های پلیمری مسلح به الیاف شیشه ای (GFRP) بررسی شده اند. پارامتر های مورد بررسی، با در نظر گرفتن اثر خواص بتن و الیاف، شامل مقاومت هسته بتنی محصور نشده، ضخامت لایه محصور کننده و زاویه جهت گیری الیاف در لایه محصور کننده GFRP هستند. آثار این پارامترها بر رفتار منحنی تنش-کرنش فشاری، مقاومت فشاری، کرنش نهایی و جذب ان...
The overall objective of this research project was to conduct an extensive study of the behavior and use of glass fiber-reinforced polymer (GFRP) and carbon FRP (CFRP) materials for bridge construction. In particular, GFRP honeycomb sandwich panels were used as bridge panels and steel-supported bridge deck panels and CFRP and GFRP bars were used as internal reinforcement for precast concrete br...
The flexural strengthening of reinforced concrete (RC) beams by bonding external composite materials has proved to be an effective and convenient technique. Several works, focus on mechanical behaviour continuous beam with two spans strengthened materials, were reported in literature. This paper presents the capacity RC three or repaired carbon glass fibre polymer (CFRP GFRP) sheets. Experiment...
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