Paper
27 June 1997 Erosion of aerospace materials by solid-particle impact
Robert H. Telling, G. H. Jilbert, John E. Field
Author Affiliations +
Abstract
The degradation of various aerospace window materials by the action of solid particle impact is investigated. Laboratory simulations of high velocity sand, dust and hail impacts have been carried out, and the damage assessed in terms of the reductions in optical and mechanical performance. A new erosion rig has been designed to cover the broad size and velocity range of airborne particulates encountered by moving craft, and an ice-firing gas-gun was used to simulate hail impacts. IR-transmitting materials studied include CVD diamond, sapphire and coated zinc sulphide. A radar-dome composite material was compared with polymethylmethacylate (PMMA) for hail impact. Nylon spheres were assessed as a convenient simulation for ice and were found to cause very similar damage over parts of the velocity range studied. The different damage mechanisms observed in these materials are discussed and the extent of degradation by multi-particle erosion related to the particle size and impact velocity.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert H. Telling, G. H. Jilbert, and John E. Field "Erosion of aerospace materials by solid-particle impact", Proc. SPIE 3060, Window and Dome Technologies and Materials V, (27 June 1997); https://doi.org/10.1117/12.277065
Lens.org Logo
CITATIONS
Cited by 20 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Particles

Zinc

Diamond

Coating

Sapphire

Silica

Chemical vapor deposition

RELATED CONTENT

Rain erosion data on window and dome materials
Proceedings of SPIE (December 14 1992)
Rain erosion resistance of diamond and other window materials
Proceedings of SPIE (September 28 1994)
Solid particle erosion of infrared transmitting materials
Proceedings of SPIE (September 28 1994)
Mechanical properties of thin films for aerospace applications
Proceedings of SPIE (September 28 1994)
Multiparticle supersonic impact test program
Proceedings of SPIE (October 01 1990)

Back to Top