ASTM F2192-05(2011)
Standard Test Method for Determining and Reporting the Berthing Energy and Reaction of Marine Fenders
- Standard No.
- ASTM F2192-05(2011)
- Release Date
- 2005
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM F2192-05(2017)
- Latest
- ASTM F2192-05(2022)
- Scope
General:
All testing shall define fender performance under velocities that decrease linearly or that are proportional to the square root of percent of remaining rated energy.
Rated performance data (RPD) and manufacturers' published performance curves or tables, or both, shall be based on: (1) initial deflection (berthing) velocity of 0.15 m/s and decreasing to no more than 0.005 m/s at test end, (2) testing of fully broken-in fenders (break-in testing is not required for pneumatic fenders), (3) testing of fenders stabilized at 23 ± 5°C (excluding pneumatic fenders; see 6.3), (4) testing of fenders at 0° angle of approach, and (5) deflection (berthing) frequency of not less than 1 h (use a minimum 5-min deflection frequency for pneumatic fenders.).
Catalogues shall also include nominal performance tolerances as well as data and methodology to adjust performance curves or tables or both for application parameters different from RPD conditions. Adjustment factors shall be provided for the following variables: (1) other initial velocities: 0.05, 0.10, 0.20, 0.25, and 0.30 m/s; (2) other temperatures: +50, +40, +30, +10, 0, −10, −20, −30; and (3) other contact angles: 3, 5, 8, 10, 15°. In addition, RPD shall contain a cautionary statement that published data do not necessarily apply to constant-load and cyclic-loading conditions. In such cases, designers are to contact fender manufacturers for design assistance.
Adjustment factors for velocity and temperature shall be provided for every catalogue compound or other energy absorbing material offered by each manufacturer.
Fender Testing8212;Performance testing to establish RPD must use either one of two methods:
Method A8212;Deflection of full-size fenders at velocities inversely proportional to the percent of rated deflection or directly proportional to the square root of percent of remaining rated energy. Test parameters shall be as defined for published RPD. RPD tests shall start at 0.15 m/s. Tests to establish adjustment factors for initial berthing velocities other than 0.15 m/s shall start at those other initial velocities.
Method B8212;Deflection of full size fenders at constant velocity with performance adjusted by velocity factors developed from model tests. Velocity factors shall be the ratio of performance test results of models under the following conditions: (1) a constant strain rate similar to the strain rate of the full-size fender at its test speed, and (2) decreasing speed deflection with initial strain rate similar to that of the full-size fender under RPD deflection conditions.
The RPD for pneumatic fenders shall be determined using either Method A or Method B with miniature-size fenders; in which case, the compression performance of air shall be directly extrapolated from the test data of reduced scale models.
1.1 This test method covers the recommended procedures for quantitative testing, reporting, and verifying the energy absorption and reaction force of marine fenders. Marine fenders are available in a variety of basic types with several variations of each type and multiple sizes and stiffnesses f......
ASTM F2192-05(2011) Referenced Document
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM F2192-05(2011) history
- 2022 ASTM F2192-05(2022) Standard Test Method for Determining and Reporting the Berthing Energy and Reaction of Marine Fenders
- 2017 ASTM F2192-05(2017) Standard Test Method for Determining and Reporting the Berthing Energy and Reaction of Marine Fenders
- 2005 ASTM F2192-05(2011) Standard Test Method for Determining and Reporting the Berthing Energy and Reaction of Marine Fenders
- 2005 ASTM F2192-05 Standard Test Method for Determining and Reporting the Berthing Energy and Reaction of Marine Fenders
- 2002 ASTM F2192-02 Standard Test Method for Determining and Reporting the Berthing Energy and Reaction of Marine Fenders
