Journal
MATERIALS
Volume 15, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/ma15124112
Keywords
additive manufacturing; building materials; 3D printing; interlayer bond strength
Categories
Funding
- Polish National Agency for Academic Exchange under the International Academic Partnership Program [PPI/APM/2018/1/00027]
- Ministry of Education and Science [DWD/5/0237/2021]
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This paper presents a research methodology for evaluating the interlayer bond strength of 3D-printed mineral materials. Three test methods, including direct tensile, splitting, and shear tests, were compared. The results indicate that the splitting test is the most effective method for assessing layer adhesion.
There are no standards for testing the properties of 3D-printed materials; hence, the need to develop guidelines for implementing this type of experiment is necessary. The work concerns the development of a research methodology for interlayer bond strength evaluation in 3D-printed mineral materials. In additive manufactured construction elements, the bond strength is a significant factor as it determines the load-bearing capacity of the entire structural element. After we completed a literature review, the following three test methods were selected for consideration: direct tensile, splitting, and shear tests. The paper compares the testing procedure, results, and sample failure modes. The splitting test was found to be the most effective for assessing layer adhesion, by giving the lowest scatter of results while being an easy test to carry out.
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