Browsing by Author "0000-0003-3167-5732"
Now showing items 1-20 of 90
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A comparison of the performance of two advanced restraint systems in frontal impacts
López Valdés, Francisco José; Juste Lorente, Oscar; Pipkorn, Bengt; García Muñoz, Isabel; Sunnevang, Cecilia; Dahlgren, M.; Alba López, Juan José (01/09/2014)Objective: The goal of the study is to compare the kinematics and dynamics of the THOR dummy in a frontal impact under the action of 2 state-of-the-art restraint systems. Methods: Ten frontal sled tests were performed with ... -
A methodology to estimate the kinematics of pediatric occupants in frontal impacts
López Valdés, Francisco José; Seacrist, Thomas; Arbogast, Kristy .B.; Balasubramanian, Sriram; Maltese, Matthew R.; Tanji, Hiromasa; Higuchi, Kazuo; Kent, Richard W. (01/05/2012)<p><strong>Objective:</strong></p> The goal of this article is to propose a new methodology to estimate the sagittal plane displacement of the head, spine, and pelvis of a 6-year-old (6YO) occupant during a high-speed ... -
A methodology to obtain kinematic corridors for pediatric occupants in frontal impacts
López Valdés, Francisco José; Seacrist, Thomas; Balasubramanian, Sriram; Maltese, Matthew R.; Arbogast, Kristy .B.; Tanji, Hiromasa; Higuchi, Kazuo; Kent, Richard W. (Biomedical Engineering Society of Singapore; Global Enterprise for Micromechanics and Molecular Medi (Singapur, Singapur), 01/08/2010)Pediatric Anthropomorphic Test Devices (ATD) provide a reasonable approximation predicting maximum head excursion. However, the exact trajectory followed by the human head and the flexible human spine cannot be replicated ... -
A parametric study of hard tissue injury prediction using finite elements: consideration of geometric complexity, sub-failure material properties, CT-thresholding, and element characteristics
Arregui-Dalmases, Carlos; Pozo de Dios, Eduardo del; Duprey, Sonia; López Valdés, Francisco José; Lau, Anthony; Subit, Damien; Kent, Richard W. (Sin editorial (Berna, Suiza), 17/09/2008)This study quantifies the sensitivity of finite element-predicted fracture in the clavicle to several parameters. Clavicles were harvested from 14 donors (age range 14-56 years). Quasistatic axxal compression tests were ... -
A parametric study of hard tissue injury prediction using finite elements: consideration of geometric complexity, subfailure material properties, CT-thresholding and element characteristics
Arregui-Dalmases, Carlos; Pozo de Dios, Eduardo del; Duprey, Sonia; López Valdés, Francisco José; Lau, Anthony; Subit, Damien; Kent, Richard W. (09/06/2010)Objective: The objectives of this study were to examine the axial response of the clavicle under quasistatic compressions replicating the body boundary conditions and to quantify the sensitivity of finite element predicted ... -
Accidents of motorcyclists against roadside infrastructure
López Valdés, Francisco José; García López, David; Pedrero Muriel, David; Moreno de Castro, Jose Luis (Sin editorial (Dublín, Irlanda), 01/07/2005)Powered two wheelers (PTWs) riders are one of the most vulnerable groups of road users. Roadside barriers work quite effectively for passenger cars, but sometimes they are dangerous for motorcyclists, especially guard-rails. ... -
Analysis of occupant kinematics and dynamics in nearside oblique impacts
López Valdés, Francisco José; Juste Lorente, Oscar; Maza Frechín, Mario Vicente; Pipkorn, Bengt; Sunnevang, Cecilia; Lorente Corellano, Ana I.; Aso Vizán, Alberto; Davidsson, Johan (12/09/2016)OBJECTIVE: The objective of this article is to analyze the kinematics and dynamics of restrained postmortem human surrogates (PMHS) exposed to a nearside oblique impact and the injuries that were found after the ... -
Analysis of occupant kinematics and dynamics in nearside oblique impacts
López Valdés, Francisco José; Juste Lorente, Oscar; Maza, Mario; Pipkorn, Bengt; Sunnevang, Cecilia; Lorente Corellano, Ana; Aso, Alberto; Davidsson, Johan (02/09/2016)Estudio sobre impactos oblicuos -
Are Electric Cars Safe? A Descriptive Analysis of the first collisions reported in Spain
López Valdés, Francisco José; Ruiz López-Guerrero, Roberto; Frías Marín, Pablo; Román Úbeda, Jaime; Seguí Gómez, MaríaAnálisis descriptivo de la siniestralidad de vehículos eléctricos en España según los datos publicados por la DGT en el periodo 2014-2016 -
Assessment of an innovative seat belt with independent control of the shoulder and lap portions using THOR tests, the THUMS model, and PMHS tests
Pipkorn, Bengt; López Valdés, Francisco José; Juste Lorente, Oscar; Insausti, Ricardo; Lundgren, Christer; Sunnevang, Cecilia (02/09/2016)Evaluación de sistemas de retención innovadores -
Assessment of an innovative seatbelt with independent control of the shoulder and lap portions using THOR tests, the THUMS model and PMHS tests
Pipkorn, Bengt; López Valdés, Francisco José; Juste Lorente, Oscar; Insausti Serrano, Ricardo; Lundgren, Christer; Sunnevang, Cecilia (12/09/2016)Objectives: The objective of this study was to determine the potential chest injury benefits and influence on occupant kinematics of a belt system with independent control of the shoulder and lap portions. Methods: This ... -
Assessment of the sensitivity of thoracic injury criteria to subject-specific characteristics using human body models
Piqueras Lorente, Ana; Iraeus, Johan; Pipkorn, Bengt; López Valdés, Francisco José (13/02/2023)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 ... -
Biomecánica del daño
Carnicero López, Alberto; López Valdés, Francisco José (29/08/2019) -
Biomecánica del daño
Carnicero López, Alberto; López Valdés, Francisco José (02/09/2020) -
Biomecánica del daño / Injury Biomecanics
Carnicero López, Alberto; López Valdés, Francisco José (01/09/2021) -
Biomechanical response targets for physical and computational models of the pediatric trunk
Kent, Richard W.; López Valdés, Francisco José; Lamp, John; Lau, Sabrina; Parent, Daniel; Kerrigan, Jason; Lessley, David J.; Salzar, Robert; Sochor, Mark; et al., ? (01/09/2012)<p><strong>Objectives:</strong></p> This paper quantifies pediatric thoracoabdominal response to belt loading to guide the scaling of existing adult response data and to assess the validity of a juvenile porcine abdominal ... -
Characterizing the distribution of injury and injury severity for belted front-seat occupants involved in frontal crashes
Seguí Gómez, María; López Valdés, Francisco José; Crandall, Jeff R. (Sin editorial (York, Reino Unido), 09/09/2009)Probability distribution curves at each AIS level within each body region were developed for front seat occupants in frontal crashes as a function of crash severity. Multivariate regression models used data on passenger ... -
Chest injuries of elderly Post Mortem Human Surrogates (PMHS) under seat belt and airbag loading in frontal sled impacts. Comparison to matching THOR tests.
López Valdés, Francisco José; Mroz, Krystoffer; Eggers, Andre; Pipkorn, Bengt; Muehlbauer, Julia; Schick, Sylvia; Peldschus, SteffenResultados de ensayos de impacto realizados con Post Mortem Human Surrogates y el dummy THOR en impactos frontales a 35 km/h, utilizando cinturón de seguridad y airbag. Discusión de las lesiones encontradas -
Comparison of the kinematics and dynamics of the THOR-50M dummy and elderly volunteers in low-speed frontal decelerations
López Valdés, Francisco José; Juste Lorente, Oscar; Lorente Corellano, Ana I.; Piqueras Lorente, Ana; Maza Frechín, Mario Vicente; Muehlbauer, Julia; Schick, Sylvia; Pipkorn, Bengt; Mroz, Krystoffer; Peldschus, Steffen -
Development of a multibody 50th percentile model for EuroNCAP’s Pedestrian Test Protocol
López Valdés, Francisco José; Asensio Gil, Juan Manuel; Lancashire, Richard; Carnicero López, Alberto