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Response of ultra-high performance cementitious composites filled steel tube (UHPCC-FST) subjected to low-velocity impact
Abstract This paper presents a combined experimental and numerical study on the transverse impact behavior of ultra-high performance cementitious composites filled steel tube (UHPCC-FST). UHPCC-FSTs were firstly fabricated by preparing the UHPCC with the cube compressive strength of 141.5 MPa. Then three specimens were tested in a drop-hammer impact device, and the impact force- and deflection-time histories of specimens under different release heights (5.0, 8.0 and 11.0 m) of the drop hammer were obtained and discussed. Furthermore, by using the commercial finite element (FE) program Hypermesh/LS-DYNA, a FE model was established to predict the impact behavior of UHPCC-FST. K&C constitutive model for concrete was adopted, and the corresponding model parameters for UHPCC were calibrated based on a series of test data (static compressive and direct tensile tests, dynamic compressive and tensile tests, triaxial compressive test, fly plate impact test), which were then validated by the present and existing drop hammer tests.
Highlights The axial load bearing capacity of UHPCC-FST is tested and the constraining factor is obtained. Drop-hammer impact test on UHPCC-FSTs is performed and the experimental results are reported. Failure mode of UHPCC-FSTs subjected to the transverse low-velocity impact is discussed. K&C model parameters for UHPCC are calibrated systematically and verified by the present and existing tests.
Response of ultra-high performance cementitious composites filled steel tube (UHPCC-FST) subjected to low-velocity impact
Abstract This paper presents a combined experimental and numerical study on the transverse impact behavior of ultra-high performance cementitious composites filled steel tube (UHPCC-FST). UHPCC-FSTs were firstly fabricated by preparing the UHPCC with the cube compressive strength of 141.5 MPa. Then three specimens were tested in a drop-hammer impact device, and the impact force- and deflection-time histories of specimens under different release heights (5.0, 8.0 and 11.0 m) of the drop hammer were obtained and discussed. Furthermore, by using the commercial finite element (FE) program Hypermesh/LS-DYNA, a FE model was established to predict the impact behavior of UHPCC-FST. K&C constitutive model for concrete was adopted, and the corresponding model parameters for UHPCC were calibrated based on a series of test data (static compressive and direct tensile tests, dynamic compressive and tensile tests, triaxial compressive test, fly plate impact test), which were then validated by the present and existing drop hammer tests.
Highlights The axial load bearing capacity of UHPCC-FST is tested and the constraining factor is obtained. Drop-hammer impact test on UHPCC-FSTs is performed and the experimental results are reported. Failure mode of UHPCC-FSTs subjected to the transverse low-velocity impact is discussed. K&C model parameters for UHPCC are calibrated systematically and verified by the present and existing tests.
Response of ultra-high performance cementitious composites filled steel tube (UHPCC-FST) subjected to low-velocity impact
Thin-Walled Structures ; 144
2019-08-06
Article (Journal)
Electronic Resource
English
Development of Ultra High Performance Cementitious Composites (UHPCC) in Korea
| British Library Conference Proceedings | 2008
Response of UHPCC-FST Subjected to Low-Velocity Impact
| Springer Verlag | 2021