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https://hdl.handle.net/11681/10941| Title: | Limiting impact force due to yielding and buckling of the plates and internal structural frame at the impact corner of the barge during its glancing blow impact with a lock approach wall |
| Authors: | Infrastructure Technology Research Program (U.S.) Navigation Systems Research Program (U.S.) Ebeling, Robert M., 1954- Warren, Terry W. |
| Keywords: | Barges Crush analysis Glancing blow Impact Limiting impact force for a barge train Lock approach wall Locks Hydraulic structures LS-DYNA Nonlinear finite element analysis Finite element method Plate buckling |
| Publisher: | Information Technology Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | ERDC/ITL TR ; 08-2. |
| Description: | Technical Report Abstract: In 2003, the U.S. Army Corps of Engineers issued ERDC/ITL TR-03-3, which interpreted eight of the 44 full-scale, low-velocity, controlled-impact barge train experiments conducted at the decommissioned Gallipolis Lock at Robert C. Byrd Lock and Dam. An easy-to-use “empirical correlation” was derived, reporting the maximum impact force (normal to the wall) as a function of the linear momentum normal to the wall (immediately before impact). This empirical correlation was cited in ETL 1110-2-563 (April 2004) for impacts with stiff-to-rigid walls that do not involve damage to either the corner barge or the wall; a limiting impact force of 800 kips (capping the empirical correlation) was cited. In this technical report, we provide a basis for revising the “capping force” cited in ETL 1110-2-563, based on the computation of the “crushing” force imparted during a glancing blow of the impact corner at the bow with a lock approach wall. A second limiting force due to the limit state of lashing forces during a glancing blow impact is addressed in the USACE technical report ERDC/ITL TR-05-1. The lower of the two limiting forces - due to the crushing of the barge impact corner or to the failure of the lashings - “caps” the empirical correlation. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/10941 |
| Appears in Collections: | Technical Report |
