Results 51 to 60 of about 14,778 (211)

NASA/FAA general aviation crash dynamics program [PDF]

open access: yes, 1981
The program involves controlled full scale crash testing, nonlinear structural analyses to predict large deflection elastoplastic response, and load attenuating concepts for use in improved seat and subfloor structure.
Carden, H. D.   +2 more
core   +1 more source

Bioinspired Materials, Designs, and Manufacturing Strategies for Advanced Impact‐Resistant Helmets

open access: yesAdvanced Engineering Materials, Volume 27, Issue 22, November 2025.
This review explores how bioinspired materials, structures, and manufacturing strategies transform helmet design to achieve enhanced impact resistance. Drawing inspiration from nacre, porcupine quills, beetle exoskeletons, and skull architectures, it highlights advances in auxetic lattices, nanocomposites, and functionally graded foams.
Joseph Schlager   +4 more
wiley   +1 more source

Crashworthiness of Safe Fuels [PDF]

open access: yesASME 1972 International Gas Turbine and Fluids Engineering Conference and Products Show, 1972
Safety fuels such as emulsified and gelled fuels have been studied over the past several years as one means for reducing the post-crash fire hazard associated with aircraft accidents. However, through the work described herein, only recently has a quantitative evaluation been made to characterize the safety performance of these fuels.
R. A. Rockow, L. M. Shaw
openaire   +1 more source

Optimal Design of Cellular Material Systems for Crashworthiness [PDF]

open access: yes, 2016
This work proposes a new method to design crashworthiness structures that made of functionally graded cellular (porous) material. The proposed method consists of three stages: The first stage is to generate a conceptual design using a topology ...
Detwiler, Duane   +3 more
core   +1 more source

Characterization and Reporting Protocols for Structural Power Composites: A Perspective

open access: yesAdvanced Energy Materials, Volume 15, Issue 42, November 11, 2025.
Here, the issues for testing and reporting on structural power composites are described: multifunctional materials that can carry loads while providing electrical energy. As well as proposing best practice, the development of a “universal coupon” is recommended for studying these materials and any interactions that occur between the two functions ...
Emile S. Greenhalgh   +13 more
wiley   +1 more source

Crashworthiness analysis and multiobjective optimization for circular tubes with functionally graded thickness under multiple loading angles

open access: yesAdvances in Mechanical Engineering, 2017
In this article, the nonlinear finite-element analysis software LS-DYNA is used to study the crashworthiness of functionally graded thickness circular tubes under multiple loading angles (0°, 10°, 20°, 30°, and 40°).
Shuguang Yao, Yi Xing, Kai Zhao
doaj   +1 more source

Quantifying the Influence of Fault Geometry via Mesh Morphing With Applications to Earthquake Dynamic Rupture and Thermal Models of Subduction

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract Subsurface geometries, such as faults and subducting slab interfaces, are often poorly constrained, yet they exert first‐order control on key geophysical processes, including subduction zone thermal structure and earthquake rupture dynamics.
Gabrielle M. Hobson   +2 more
wiley   +1 more source

Material relation to assess the crashworthiness of ship structures [PDF]

open access: yes, 2009
A ship collision accident can result in severe environmental damage and loss of life. Therefore the non-linear finite element method with shell elements is used to assess the crashworthiness of ship steel structures through collision simulations. However,
Ehlers, Sören
core   +1 more source

Experimental Investigation on Crashworthiness Behaviors of 3D‐Printed Cellular Composite Sandwich Structures

open access: yesPolymer Composites, Volume 46, Issue 15, Page 14433-14446, 20 October 2025.
Deformation mechanisms and absorbed energy of sandwich structures. ABSTRACT This study presents an experimental investigation into the quasi‐static crashworthiness of carbon fiber‐reinforced polymer (CFRP) sandwich structures incorporating 3D‐printed cores with four distinct geometries: honeycomb, re‐entrant, double‐arrowhead, and missing rib‐cut.
Merve Tunay   +2 more
wiley   +1 more source

Multi objective optimization of foam-filled circular tubes for quasi-static and dynamic responses

open access: yesLatin American Journal of Solids and Structures
Fuel consumption and safety are currently key aspects in automobile design. The foam-filled thin-walled aluminium tube represents a potentially effective material for use in the automotive industry, due to its energy absorption capability and light ...
Fauzan Djamaluddin   +3 more
doaj   +1 more source

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