Experimental and numerical results of drop weight impact tests are presented, examining the plastic response and the crack initiation and propagation of small-scale clamped rectangular aluminum plates laterally impacted by different indenter shapes. The experiments are conducted using a fully instrumented impact testing machine. The shape of the deformation of the specimens and the process of initiation and propagation of the material fracture are presented. The obtained force–displacement responses show a good agreement with the simulations performed by the ls-dyna finite element solver. The strain hardening of the material is defined using experimental data of quasi-static tensile tests and the critical failure strain is evaluated by measuring the thickness and the width at fracture of the tensile test pieces. The results show that the absorbed energy to perforate the specimens is highly sensitive to the shape of the striker. Thus, the crack propagation for each striker type is analyzed in terms of the force–displacement response. The failure modes are described by the matrix of the infinitesimal strain tensors and the shape of the deformation of the failing elements.
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October 2015
Research-Article
Influence of Striker Shape on the Crack Initiation and Propagation on Laterally Impacted Thin Aluminum Plates
B. Liu,
B. Liu
Centre for Marine Technology and
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
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R. Villavicencio,
R. Villavicencio
Centre for Marine Technology and
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
Search for other works by this author on:
C. Guedes Soares
C. Guedes Soares
Centre for Marine Technology and
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
e-mail: c.guedes.soares@centec.tecnico.ulisboa.pt
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
e-mail: c.guedes.soares@centec.tecnico.ulisboa.pt
Search for other works by this author on:
B. Liu
Centre for Marine Technology and
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
R. Villavicencio
Centre for Marine Technology and
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
C. Guedes Soares
Centre for Marine Technology and
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
e-mail: c.guedes.soares@centec.tecnico.ulisboa.pt
Engineering (CENTEC),
Instituto Superior Técnico,
Universidade de Lisboa,
Lisboa 1049-001, Portugal
e-mail: c.guedes.soares@centec.tecnico.ulisboa.pt
1Corresponding author.
Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received August 29, 2013; final manuscript received March 24, 2015; published online August 13, 2015. Assoc. Editor: Myung Hyun Kim.
J. Offshore Mech. Arct. Eng. Oct 2015, 137(5): 051402 (10 pages)
Published Online: August 13, 2015
Article history
Received:
August 29, 2013
Revision Received:
March 24, 2015
Citation
Liu, B., Villavicencio, R., and Guedes Soares, C. (August 13, 2015). "Influence of Striker Shape on the Crack Initiation and Propagation on Laterally Impacted Thin Aluminum Plates." ASME. J. Offshore Mech. Arct. Eng. October 2015; 137(5): 051402. https://doi.org/10.1115/1.4030725
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