The Experts below are selected from a list of 48 Experts worldwide ranked by ideXlab platform

Andrew Rider - One of the best experts on this subject based on the ideXlab platform.

  • Bond Durability of Grit-Blast and Silane Treated Metallic Adherends Bonded With Room Temperature Curing Adhesives
    2001
    Co-Authors: Andrew Rider
    Abstract:

    Abstract : The "Australian Silane Treatment" has been successfully used for bonded repairs carried out at RAAF Airbases for a number of years. This surface treatment has provided a reliable and non-toxic alternative to surface pre-treatments recommended in Structural Repair Manuals (SRM) for Metallic adhesive bonded repairs. Generally, however, the silane treatment has only been applied in bonded repairs involving the use of high temperature curing structural adhesives. The purpose of the study detailed in this report was to examine the feasibility of extending the application of the silane pre-treatment to Metallic repairs involving the use of room temperature or paste adhesive systems employed in a range of airbase repairs. Wedge style durability tests were conducted for a range of Metallic Adherends and room temperature curing adhesives. The durability performance of the grit-blast and epoxy silane Metallic adherend pre-treatment was compared with standard pre-treatments recommended in a range of SRMs. Generally, the data indicated that the grit-blast and silane pre-treatment offered either improved or similar performance to the SRM alternative pre-treatments on the basis of results from wedge style durability tests conducted at 50 deg C and 100% relative humidity.

  • Bond Durability of Grit-blast and Silane treated Metallic Adherends Bonded with Room Temperature Curing Adhesives
    2001
    Co-Authors: Andrew Rider
    Abstract:

    The "Australian Silane Treatment " has been successfully used for bonded repairs carried out at RAAF Airbases for a number of years. This surface treatment has provided a reliable and non-toxic alternative to surface pre-treatments recommended in Structural Repair Manuals (SRM) for Metallic adhesive bonded repairs. Generally, however, the silane treatment has only been applied in bonded repairs involving the use of high temperature curing structural adhesives. The purpose of the study detailed in this report was to examine the feasibility of extending the application of the silane pre-treatment to Metallic repairs involving the use of room temperature or paste adhesive systems employed in a range of airbase repairs. Wedge style durability tests were conducted for a range of Metallic Adherends and room temperature curing adhesives. The durability performance of the grit-blast and epoxy silane Metallic adherend pre-treatment was compared with standard pre-treatments recommended in a range of SRMs. Generally, the data indicated that the grit-blast and silane pre-treatment offered either improved or similar performance to the SRM alternative pre

Naghdali Choupani - One of the best experts on this subject based on the ideXlab platform.

  • Mixed-Mode Fracture Of Adhesively Bonded Joints
    2015
    Co-Authors: Naghdali Choupani, Yiu-wing Mai
    Abstract:

    ABSTRACT: The study focuses on using fracture mechanics to evaluate mixed-mode fracture properties of adhesively bonded aerospace material systems. As a part of experimental efforts, mixed-mode fracture tests were performed using modified Arcan specimens consisting of several combinations of adhesive, composite and Metallic Adherends using a special loading device. By varying the loading angle,α from 0ο to 90ο, mode I, mixed-mode and mode II fracture data were obtained experimentally. Experimental and theoretical studies of mixed-mode fracture behaviour of adhesively bonded aluminium, steel and CF/PEI composite joints were also performed using an adhesive in the aerospace industry. Finite element analyses were carried out on specimens with different Adherends. Based on those analyses, mixed-mode fracture criterions for the adhesively bonded systems under consideration have been determined.

  • mixed mode cohesive fracture of adhesive joints experimental and numerical studies
    Engineering Fracture Mechanics, 2008
    Co-Authors: Naghdali Choupani
    Abstract:

    Abstract A broad experimental and analytical effort using fracture mechanics as the prime tool was conducted to investigate and improve the understanding of the mixed-mode cohesive fracture behavior of bonded joints. As a part of experimental efforts, mixed-mode fracture tests were performed using modified Arcan specimens consisting of several combinations of adhesive, composite and Metallic Adherends with a special loading fixture, in which by varying the loading angle, from 0° to 90°, mode-I, mixed-mode and mode-II fracture data were obtained. Finite element analyses were also carried out on specimens with different Adherends. The main objective of this study was to determine the fracture toughness KIC and KIIC for a range of substrates under mixed-mode loading conditions. Another goal was to study the relationship between the stress intensity factors and the fracture toughness. Based on those analyses, mixed mode fracture criterion for the adhesively bonded systems under consideration determined. Fracture surfaces obtained at different mixed-mode loading conditions for various Adherends were finally discussed.

Yiu-wing Mai - One of the best experts on this subject based on the ideXlab platform.

  • Mixed-Mode Fracture Of Adhesively Bonded Joints
    2015
    Co-Authors: Naghdali Choupani, Yiu-wing Mai
    Abstract:

    ABSTRACT: The study focuses on using fracture mechanics to evaluate mixed-mode fracture properties of adhesively bonded aerospace material systems. As a part of experimental efforts, mixed-mode fracture tests were performed using modified Arcan specimens consisting of several combinations of adhesive, composite and Metallic Adherends using a special loading device. By varying the loading angle,α from 0ο to 90ο, mode I, mixed-mode and mode II fracture data were obtained experimentally. Experimental and theoretical studies of mixed-mode fracture behaviour of adhesively bonded aluminium, steel and CF/PEI composite joints were also performed using an adhesive in the aerospace industry. Finite element analyses were carried out on specimens with different Adherends. Based on those analyses, mixed-mode fracture criterions for the adhesively bonded systems under consideration have been determined.

Mai Yiu-wing - One of the best experts on this subject based on the ideXlab platform.

  • Mixed-Mode Fracture Of Adhesively Bonded Joints
    2004
    Co-Authors: Choupani Naghdali, Ye Lin, Mai Yiu-wing
    Abstract:

    The study focuses on using fracture mechanics to evaluate mixed-mode fracture properties of adhesively bonded aerospace material systems. As a part of experimental efforts, mixed-mode fracture tests were performed using modified Arcan specimens consisting of several combinations of adhesive, composite and Metallic Adherends using a special loading device. By varying the loading angle, alpha from 0 degrees to 90 degrees, mode I, mixed-mode and mode II fracture data were obtained experimentally. Experimental and theoretical studies of mixed-mode fracture behaviour of adhesively bonded aluminium, steel and CF/PEI composite joints were also performed using an adhesive in the aerospace industry. Finite element analyses were carried out on specimens with different Adherends. Based on those analyses, mixed-mode fracture criterions for the adhesively bonded systems under consideration have been determined

Choupani Naghdali - One of the best experts on this subject based on the ideXlab platform.

  • Mixed-Mode Fracture Of Adhesively Bonded Joints
    2004
    Co-Authors: Choupani Naghdali, Ye Lin, Mai Yiu-wing
    Abstract:

    The study focuses on using fracture mechanics to evaluate mixed-mode fracture properties of adhesively bonded aerospace material systems. As a part of experimental efforts, mixed-mode fracture tests were performed using modified Arcan specimens consisting of several combinations of adhesive, composite and Metallic Adherends using a special loading device. By varying the loading angle, alpha from 0 degrees to 90 degrees, mode I, mixed-mode and mode II fracture data were obtained experimentally. Experimental and theoretical studies of mixed-mode fracture behaviour of adhesively bonded aluminium, steel and CF/PEI composite joints were also performed using an adhesive in the aerospace industry. Finite element analyses were carried out on specimens with different Adherends. Based on those analyses, mixed-mode fracture criterions for the adhesively bonded systems under consideration have been determined