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RISS 인기검색어
- 검색키워드
- 저자 : Lambor (검색결과 3 건)
- 무료
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Karma Hissey Lepcha,Allan Lambor Marbaniang,M. Longshithung Patton,Aarti Khyriemmujat 한국강구조학회 2020 International Journal of Steel Structures Vol.20 No.3
The fl exural behaviour of lean duplex stainless steel tubular beams with web openings is presented. A fi nite element study is carried out on lean duplex stainless steel sections with web openings to determine the eff ects of the perforations on the bending capacity, deformed shapes and local buckling characteristics. The study also aims in particular for a comparison between sections having circular or extended openings with a wide range of section slenderness. The bending capacities from the fi nite element results are also compared with the American specifi cation, European specifi cation along with direct strength method. Both ASCE and EN can give a good prediction of the design strengths, however, the direct strength method showed unconservative predictions. Modifi cations have been proposed to both the ASCE specifi cation and the direct strength method for LDSS sections with web openings.
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Fibre reinforcement in a structurally compromised endodontically treated molar: a case report
Renita Soares,Ida de Noronha de Ataide,Marina Fernandes,Rajan Lambor 대한치과보존학회 2016 Restorative Dentistry & Endodontics Vol.41 No.2
The reconstruction of structurally compromised posterior teeth is a rather challenging procedure. The tendency of endodontically treated teeth (ETT) to fracture is considerably higher than vital teeth. Although posts and core build-ups followed by conventional crowns have been generally employed for the purpose of reconstruction, this procedure entails sacrificing a considerable amount of residual sound enamel and dentin. This has drawn the attention of researchers to fibre reinforcement. Fibre-reinforced composite (FRC), designed to replace dentin, enables the biomimetic restoration of teeth. Besides improving the strength of the restoration, the incorporation of glass fibres into composite resins leads to favorable fracture patterns because the fibre layer acts as a stress breaker and stops crack propagation. The following case report presents a technique for reinforcing a badly broken-down ETT with biomimetic materials and FRC. The proper utilization of FRC in structurally compromised teeth can be considered to be an economical and practical measure that may obviate the use of extensive prosthetic treatment.
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Fibre reinforcement in a structurally compromised endodontically treated molar: a case report
Soares, Renita,Ataide, Ida de Noronha de,Fernandes, Marina,Lambor, Rajan The Korean Academy of Conservative Dentistry 2016 Restorative Dentistry & Endodontics Vol.41 No.2
The reconstruction of structurally compromised posterior teeth is a rather challenging procedure. The tendency of endodontically treated teeth (ETT) to fracture is considerably higher than vital teeth. Although posts and core build-ups followed by conventional crowns have been generally employed for the purpose of reconstruction, this procedure entails sacrificing a considerable amount of residual sound enamel and dentin. This has drawn the attention of researchers to fibre reinforcement. Fibrereinforced composite (FRC), designed to replace dentin, enables the biomimetic restoration of teeth. Besides improving the strength of the restoration, the incorporation of glass fibres into composite resins leads to favorable fracture patterns because the fibre layer acts as a stress breaker and stops crack propagation. The following case report presents a technique for reinforcing a badly broken-down ETT with biomimetic materials and FRC. The proper utilization of FRC in structurally compromised teeth can be considered to be an economical and practical measure that may obviate the use of extensive prosthetic treatment.
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