Results 11 to 20 of about 43,639 (244)

Oblique impact responses of Hybrid III and a new headform with more biofidelic coefficient of friction and moments of inertia [PDF]

Frontiers in Bioengineering and Biotechnology, 2022
New oblique impact methods for evaluating head injury mitigation effects of helmets are emerging, which mandate measuring both translational and rotational kinematics of the headform. These methods need headforms with biofidelic mass, moments of inertia (
Xiancheng Yu, Peter Halldin, Peter Halldin, Mazdak Ghajari   +3 more
doaj   +2 more sources

Quantitative analysis of the protective performance of bicycle helmet with multi-direction impact protection system in oblique impact tests [PDF]

Chinese Journal of Traumatology
Purpose: The current study aimed to assess the protective performance of helmets equipped with multi-directional impact protection system (MIPS) under various oblique impact loads.
Yong Han, Hao Yang, He Wu, Di Pan, Bing-Yu Wang   +4 more
doaj   +2 more sources

Feasibility study of performing experimental modal analysis with oblique impact testing using various oblique impact directions [PDF]

Alexandria Engineering Journal, 2020
Oblique impact excitation has been introduced in Experimental Modal Analysis (EMA), with the great advantage of reducing the conventional EMA’s testing time by a factor of three.
Shin Yee Khoo, Yee Cheng Lian, Zhi Chao Ong, Zubaidah Ismail, Siamak Noroozi   +4 more
doaj   +2 more sources

Experimental analysis of specific energy with variable deformation volume under sphere oblique impact

Mechanics & Industry, 2023
Experiments of a steel sphere oblique impact with a rubber cushion have been proceeded to research the variation laws of the specific energy at interface.
Wang Qing-Peng, Lv Shao-Yun, Han Jin-Li, Wang Heng, Li De-Feng, Wang Zhen-Feng   +5 more
doaj   +1 more source

Assessment of the sensitivity of thoracic injury criteria to subject-specific characteristics using human body models

Frontiers in Bioengineering and Biotechnology, 2023
Introduction: Chest deformation has been proposed as the best predictor of thoracic injury risk in frontal impacts. Finite Element Human Body Models (FE-HBM) can enhance the results obtained in physical crash tests with Anthropometric Test Devices (ATD ...
Ana Piqueras, Johan Iraeus, Bengt Pipkorn, Francisco J. López-Valdés   +3 more
doaj   +1 more source

Crashworthiness Analysis of Square Aluminum Tubes Subjected to Oblique Impact: Experimental and Numerical Study on the Initial Contact Effect

Metals, 2022
This study investigates the crashworthiness behavior of square aluminum thin-walled tubes subjected to both axial and oblique impact loading, emphasizing the effects of crushing angle and initial contact between impactor and tube on the plastic collapse ...
Konstantina D. Karantza, Dimitrios E. Manolakos   +1 more
doaj   +1 more source

Experimental study on scabbing limit of local damage to reinforced concrete panels subjected to oblique impact by projectile with semispherical nose

Mechanical Engineering Journal, 2023
The influence evaluation against projectile impacts has attracted much attention for the safety assessment of nuclear-facility buildings subjected to projectiles, such as tornado missiles or aircraft.
Yukihiko OKUDA, Zuoyi KANG, Akemi NISHIDA, Haruji TSUBOTA, Yinsheng LI   +4 more
doaj   +1 more source

Investigation of Ricochet Angles for 5 mm Various Metal Plates with AP 7.62 Bullets

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
In this study, the effect of a high-speed AP 7.62 bullet on Ti6Al4V, AISI 4340, Inconel-718, AlSi10Mg and Al 6061 - T6 materials at different impact angles were investigated by using the finite element package software LS-DYNA 971. AISI 4340 was taken as
Ümit Yılmaz, Oktay Kaya, Mutlu Çakır
doaj   +1 more source

The Influence of Headform/Helmet Friction on Head Impact Biomechanics in Oblique Impacts at Different Tangential Velocities

Applied Sciences, 2021
Oblique impacts of the helmet against the ground are the most frequent scenarios in real-world motorcycle crashes. The combination of two factors that largely affect the results of oblique impact tests are discussed in this work.
Óscar Juste-Lorente, Mario Maza, Mathieu Piccand, Francisco J. López-Valdés   +3 more
doaj   +1 more source

Surface damage from perpendicular and oblique bullet impacts in stone

Royal Society Open Science, 2022
Controlled experiments were conducted to investigate the surface damage caused by perpendicular and oblique impacts of bullets into sandstone and limestone targets.
Oliver Campbell, Tom Blenkinsop, Oscar Gilbert, Lisa Mol   +3 more
doaj   +1 more source