Failure Modes During Static and Impact Loading of Light-Weight Rectangular Glass Headlamps Corning Glass Works, Research and Development Labs, Coming, N Y.

Format:

Conference/Event

Author/Creator:

Gulati, Suresh T., author.

Conference Name:

5th International Exposition on Vehicular Structural Mechanics (1984-04-02 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1984

Summary:

An approximate analytical solution for stress distribution in the rectangular lens of a glass headlamp due to static and impact loading is presented. Both low mass/high velocity and high mass/low velocity impact data and the resulting failure modes are discussed. Generally, glass headlamp lenses break either due to Hertz stress (front surface under high localized tension), or due to flexural stress (back surface under tension due to bending), or the combination of two. Failure due to flexural stress is illustrated by a star-crack, while that due to Hertz stress is illustrated by a Hertzian cone or "bullet hole" in the lens.The failure mode during low mass/high velocity impact is predominantly Hertzian while that during high mass/low velocity impact is flexural for lenses 0.120 to 0.150 thick. No significant differences are observed in the impact resistance of standard and light-weight lenses in this thickness range

Notes:

Vendor supplied data

Publisher Number:

840745

Access Restriction:

Restricted for use by site license