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Author(s) |
Kumar, K.; Pooleery, A.; Madhusoodanan, K.; Singh, R. N.; Chakravartty, J. K.; Dutta, B. K.; Sinha, R. K. (RED;MMD;RSD;BARC)
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Source |
Procedia Engineering, 2014. Vol. 86: pp. 899-909 |
ABSTRACT
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This paper gives a comparative study of methods used for evaluation of mechanical properties of materials using miniature and
sub-size
tensile test specimens. Aim of this paper is to establish the potential
of miniature tensile tests which can be useful for life estimation of
any in-service-equipment and for development of new materials. Both
these applications intend to use very small amount of material for
evaluation of the mechanical properties. Apart from various types of
novel techniques developed worldwide, the evaluation of mechanical
properties from a miniature tensile test has a greater advantage as it
is a direct method of measurement of mechanical properties. The paper
also discusses various challenges in fabrication of miniature tensile
test specimens, testing methodologies and acceptance of the test
results. A comparison with the test results from conventional size
specimen has been done for establishing the suitability of the miniature
test specimen. For establishing the geometrical design of the miniature
test specimen and its behaviour over application of tensile load, the
tests have been corroborated with a finite element based analysis. |
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