Authors:

Nicole Marie Maneatis

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About Paper:

A challenge faced by the aerospace industry while operating in harsh conditions is solid particle erosion (SPE) damage to sensitive machinery. Many aeronautical vehicles operate in environments where sand and other particles are frequently ingested by the aeroengine from aerosolized or ground exposure. To predict the damage created from the impact of foreign objects on the aeroengine, the response of both the base material and the impacted substrate material needs to be understood. This paper is focused on characterizing the mechanical response of quartz samples following mechanical testing. Because lab-made quartz (fused quartz) is relatively inexpensive to produce and is manufactured into uniform shapes, using fused quartz for mechanical testing can be more cost effective. However, there are no studies examining or quantifying differences in fracture behavior of fused quartz and natural quartz. To determine the difference in the mechanical response between fused quartz and natural quartz, coupon specimens with similar test geometries are machined from both types of quartz. A diamond saw is used to cut large quartz samples while a lapidary machine is utilized for high precision shaping of quartz samples. MTS compression tests and ballistic testing are performed on rectangular prism-shaped samples. Dynamic coupon testing is performed for each respective test at several strain and loading rates. When compared, fused quartz and natural quartz are found to experience a different response. The results suggest the crystal structure differences in single-crystal, polycrystalline (natural quartz), and fused quartz may play a role in fracture behavior. Keywords: Quartz Mechanical Testing; Quartz Fracture Behavior; Coupon Specimen; Natural Quartz; Fused Quartz

Source:

Purdue University / 2024

Topics:

No topics listed

Co-authors:

Nicole Marie Maneatis