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Full Length Research Paper
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Strain energy distribution in an auxetic plate with a crack
S. K. Bhullar1*, J. L.
Wegner1 and A. Mioduchowski2
1Department
of Mechanical Engineering, University of Victoria, Victoria,
B.C. Canada V8W 3P6, Canada.
2Department
of Mechanical Engineering, University of Alberta, Edmonton,
AB, Canada, T6G 2G8, Canada.
*Corresponding
author. E-mail:
sbhullar@uvic.ca.
Accepted 24
June, 2010 |
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Abstract |
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Compared
with non-auxetic materials, auxetic materials have special
and desirable mechanical properties. For example, if the
material has a crack, when it is being pulled apart, it
expands and closes up the crack. In other words, this type
of material has more crack resistance to fracture. Also, it
has high material resistance to shear strain. Shear
resistance is particularly important in structural
components such as sheets or beams in buildings, cars and
aircraft. In the present paper strain energy density,
temperature variation, thermal stresses and total stresses
in an infinite plate of auxetic material with a line crack,
subjected to the mechanical and thermal loading in the
context of thermo elastic theory are studied.
Key
words:
Auxetic behavior, thermal stresses, strain energy function,
temperature variation. |
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