JASON on Shocks to Ships

02.19.08 | 1 min read | Text by Steven Aftergood

A new report (pdf) from the JASON defense science advisory panel examines the feasibility of modeling explosive shocks to naval vessels to assess their vulnerability.

“Underwater mines have long been a major threat to ships. The most probable threats are non-contact explosions, where a high pressure wave is launched towards the ship.”

“During World War II, it was discovered that although such ‘near miss’ explosions do not cause serious hull or superstructure damage, the shock and vibrations associated with the blast nonetheless incapacitate the ship, by knocking out critical components and systems. This discovery led the Navy to implement a rigorous shock hardening test procedure. The shock hardening testing culminates in a Full Ship Shock Trial (FSST), in which an underwater explosive charge is set off near an operational ship, and system and component failures are documented.”

“JASON was asked by the Navy to examine the potential role of Modeling and Simulation for certifying ship hardness, with the potential goal of FSST replacement.”

A copy of the unclassified JASON report was obtained by Secrecy News.

See “Navy Ship Underwater Shock Prediction and Testing Capability Study,” JSR-07-200, October 2007.

See all publications
Nuclear Weapons
New Voices on Nuclear Weapons Fellowship: Creative Perspectives on Rethinking Nuclear Deterrence 

To empower new voices to start their career in nuclear weapons studies, the Federation of American Scientists launched the New Voices on Nuclear Weapons Fellowship. Here’s what our inaugural cohort accomplished.

11.28.23 | 3 min read
read more
Science Policy
Expected Utility Forecasting for Science Funding

Common frameworks for evaluating proposals leave this utility function implicit, often evaluating aspects of risk, uncertainty, and potential value independently and qualitatively.

11.20.23 | 11 min read
read more
Nuclear Weapons
Nuclear Notebook: Nuclear Weapons Sharing, 2023

The FAS Nuclear Notebook is one of the most widely sourced reference materials worldwide for reliable information about the status of nuclear weapons and has been published in the Bulletin of the Atomic Scientists since 1987. The Nuclear Notebook is researched and written by the staff of the Federation of American Scientists’ Nuclear Information Project: Director Hans […]

11.17.23 | 1 min read
read more
Social Innovation
Community School Approach Reaches High of 60%, Reports Latest Pulse Panel

According to the National Center for Education Statistics’ August 2023 pulse panel, 60% of public schools were utilizing a “community school” or “wraparound services model” at the start of this school year—up from 45% last year.

11.17.23 | 4 min read
read more