An indentation test can easily measure the deformation characteristics of a material, because it does not require a test specimen to be cut from the material being examined. The applicability of this test is usually restricted to evaluating the fundamental characteristics of deformation, such as elasticity and plasticity; however, it is also useful if the test can be applied for the fracture evaluation of materials. Therefore, in this study, the fracture behavior of materials is discussed by performing indentation tests. The evaluation procedure depends on the variation in the indentation force owing to the differences in the deformation behavior. The observed variation is analyzed via the fractography of the material. A simple formulation is derived from the results for the development of a material evaluation method. Finally, the importance of the choice of the indenter diameter is explained in terms of the accuracy of the plateau stress of the porous material.
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ASME 2017 International Mechanical Engineering Congress and Exposition
November 3–9, 2017
Tampa, Florida, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5844-8
PROCEEDINGS PAPER
Fracture Evaluation of Low-Density Porous Materials by Reaction Force Analysis in Ball Indentation Test
Takayuki Ishino,
Takayuki Ishino
Kyoto Institute of Technology, Kyoto, Japan
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Atsushi Sakuma
Atsushi Sakuma
Kyoto Institute of Technology, Kyoto, Japan
Search for other works by this author on:
Takayuki Ishino
Kyoto Institute of Technology, Kyoto, Japan
Atsushi Sakuma
Kyoto Institute of Technology, Kyoto, Japan
Paper No:
IMECE2017-70526, V009T12A071; 4 pages
Published Online:
January 10, 2018
Citation
Ishino, T, & Sakuma, A. "Fracture Evaluation of Low-Density Porous Materials by Reaction Force Analysis in Ball Indentation Test." Proceedings of the ASME 2017 International Mechanical Engineering Congress and Exposition. Volume 9: Mechanics of Solids, Structures and Fluids; NDE, Structural Health Monitoring and Prognosis. Tampa, Florida, USA. November 3–9, 2017. V009T12A071. ASME. https://doi.org/10.1115/IMECE2017-70526
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