نتایج جستجو برای: still reinforced

تعداد نتایج: 430280  

Volume fraction of fibres (A), aspect ratio of fibres (B) and fibres orientation (C) are considered as control factors in the determination of hardness strength, hardness strength of plantain fiber reinforced polyester composites (PFR P). These properties were determined for plantain empty fruit bunch (PEFB) and plantain pseudo stem (PPS). Hardness tests were conducted on the replicated samples...

Journal: :American journal of multidisciplinary research and innovation 2023

Bamboo is still considered a material for poor people in rural areas. Still, it also has the potential to be fully developed engineering reinforced structural beams with concrete infill increase strength of structures, which natural aesthetic, and more durable than bamboo alone as parts buildings. This study aims determine flexural beam subjected concentrated load at midspan. The materials used...

Journal: :Academic journal of engineering and technology science 2021

Many researchers have shown that it is engineering feasible to use fiber-reinforced polymer (FRP) bars instead of steel as the tension-affected main in reinforced concrete structures. However, slabs strengthened with FRP are limited field civil engineering. For example, elastic modulus low, and ductility member reduced due brittleness bars. To solve these problems much possible, scholars adopte...

In this paper, modeling of high speed projectiles with different nose shapes, penetrating into steel fiber reinforced concrete is investigated. This is a novel study because it considers the length to diameter ratio of steel fiber as well as projectile length to diameter ratio and volume fraction of fiber used in concrete matrix on the impact resistance of steel fiber reinforced concrete fibers...

Enhancement of the response of reinforced concrete (RC) beams using fiber-reinforced polymer (FRP) reinforcement bars has become a popular structural technique over the past two decades due to the well-known advantages of FRP composites including their high strength-to-weight ratio and excellent corrosion resistance. Thisstudy presents n...

ژورنال: مواد پرانرژی 2022

This paper aims to study the numerical behavior of concrete slabs reinforced with perforated steel plates (PSPs) through nonlinear finite element (FE) analysis performed by ABAQUS. In this regard, conventional steel rebars (CSRs) are replaced with (PSPs) in the concrete slabs. Due to the particular geometry that the configuration of the hole provides, these PSPs are more integrated with surroun...

2015
Kaneyoshi Yoshida Yutaka Takahashi Ippei Hamanaka Tomohiro Kawaguchi Hirono Sasaki Hiroshi Shimizu

Objective: This study evaluated the reinforcing effect of glass fiber-reinforced composite (FRC) reinforcement on flexural strength at the proportional limit (FS-PL) of a repaired denture base resin. Materials and methods: Repaired denture base resins reinforced with metal and with FRC reinforcement, and that without reinforcement were tested. The ultimate flexural strength, the FS-PL and the e...

Journal: :Journal of biomedical materials research. Part A 2003
Ryan K Roeder Michael M Sproul Charles H Turner

Synthetic hydroxyapatite (HA) whiskers have been utilized as a new, biocompatible reinforcement for orthopedic biomaterials. High-density polyethylene (HDPE) was reinforced with either the synthesized HA whiskers or a commercially available spherical HA powder using a novel powder processing technique that facilitated uniform dispersion of the reinforcements in the matrix prior to compression m...

2013

In recent years, rehabilitation has been the subject of extensive research due to increased spending on building work and repair of built works. In all cases, it is absolutely essential to carry out methods of strengthening or repair of structural elements, and that following an inspection analysis and methodology of a correct diagnosis. The reinforced concrete columns are important elements in...

Journal: :Shinrigaku kenkyu : The Japanese journal of psychology 1991
T Yoshino H Kimura

Each of eight rats was located in the experimental chamber mounted with two levers. Lever-pressing to either of the two was maintained by a schedule of food. After that, a punishment schedule of electric shocks was added. Neither the reinforcement nor the punishment schedule was programmed on the other lever, i.e. the non-reinforced alternative. The effect of reinforcement, and the joint effect...

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