| Abstract: | The feasibility of controlling the stress intensity factors for plane cracks of arbitrary form (distributed in a plane perpendicular
to isotropy axis in a transversely isotropic material) which are subjected to symmetric mechanical loading by heating the
material is demonstrated by using the congruence theorem and making an analogy between isotropic and transversely isotropic
materials based on the theory of thermoelasticity. It is shown that a thermal load which fully compensates for the mechanical
load can be created within the range in which the material behaves linearly. If it turns out to be technically impossible
to create the necessary thermal load, a simpler temperature regime can be chosen that will “cancel” the mechanical force field
with a certain factor of safety.
S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, Kiev. Translated from Prikladnaya Mekhanika,
Vol. 35, No. 9, pp. 29–37, September, 1999. |
