Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"sub-critical crack growth"”.
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Sub-critical crack growth in a ceramic and a ceramic composite: Effects of monotonic loads, cyclic loads, and high temperatures
… have toughened microstructures which resist crack propagation, and also allow considerable sub-critical crack growth prior to failure. The sources of toughening processes are the microstructural elements in the crack wake which induce closure tractions on the crack. This experimental and …
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Elevated temperature mechanical properties of zirconium diboride based ceramics
… during specimen preparation were the source of critical flaws in the material up to 1400ºC, sub-critical crack growth of surface flaws between 1600 and 2000ºC, and microvoid coalescence above 2000ºC.</p> <p>It was also shown that thermal annealing at either 1400, 1500, or 1600ºC improves the …
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Stress corrosion cracking of austenitic stainless steels
In order to understand the stress corrosion cracking behavior of metastable and stable austenitic stainless steels, constant elongation rate tests (CERT) and sub-critical crack growth (SCG) tests were used to measure the susceptibility and cracking rate. The tests were performed in …
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Design and Performance of Cold Bent Glass
… optical quality of the glass. Cold bent glass is subjected to permanent bending stresses throughout its service life and therefore, its strength degradation after ageing needs to be quantified. Analytical, experimental and numerical investigations are undertaken in this thesis to identify the most …
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Durability of Adhesive Joints Subjected to Environemntal Stress
… as the integrity of an adhesive interface with a substrate. Therefore such disruptions can significantly reduce the lifetime and durability of an adhesive joint.1-4 In this research, the durability of certain epoxy adhesive joints and coatings were characterized using a fracture mechanics approach …