puskuriläpäisyksiä

Puskuriläpäisyksiä is a Finnish term used in automotive safety literature to describe the phenomenon of bumper penetration during vehicle impact. The word combines puskuriläpäisy, bumper penetration, with the plural suffix -ksiä, marking multiple instances or measurements.

In practice, the concept appears in crash-test reports, structural analyses, and design guidelines; it is used to discuss how far a bumper intrudes into the passenger space, engine bay, or other components when subjected to different impact scenarios.

Measurement methods: In standardized tests, intrusion is recorded as the maximum bumper intrusion relative to a defined reference plane, often in millimeters. Data come from instrumented dummies, sensors, and 3D scans; results may be complemented by finite element simulations.

Significance and relation to regulation: Bumper intrusion correlates with potential injury risk and mechanical damage, influencing safety ratings and design choices such as bumper beams, energy absorbers, and mounting geometry. While the term is mainly found in Finnish-language sources, it parallels international concepts of intrusion used in crashworthiness evaluation; terminology varies by country.

History and usage: The concept gained prominence with the development of modern crash testing in the mid-20th century and continues in contemporary research. Puskuriläpäisyksiä remains a niche term but is encountered in Finnish automotive safety literature and translation of international standards.