Article
Engineering, Mechanical
Weidong Lu, Chunguo Zhang
Summary: Incorporating tensile overload or notch can prolong fatigue life, but the combined effect of both is still unclear. Fatigue tests are conducted to clarify the combined effect of OL-induced residual stress and notch geometry on fatigue crack growth (FCG). Results show that fatigue retardation is mainly caused by notch effect at early fatigue phase and later by OL-induced residual stress. The changes in FCG-rate and crack-propagation length influenced by notch are related to notch geometry and applied stress ratio, respectively.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2023)
Article
Chemistry, Physical
Hepeng Zhang, Zhongyi Cai, Jiaxuan Chi, Rujian Sun, Zhigang Che, Hongqiang Zhang, Wei Guo
Summary: This study investigated the fatigue crack growth behavior in residual stress fields induced by laser shock peening (LSP) on Ti6Al4V titanium alloy and found that LSP significantly extended the fatigue life. The significant crack retardation observed at high compressive stress levels was attributed to the reduction of local stress. The superposition principle combined with the weight function method was used to predict the fatigue crack growth rate in residual stress fields.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Biomedical
Robert D. Johnston, Milad Ghasemi, Caitriona Lally
Summary: This study investigates the changes in material parameters and stress distributions in carotid bifurcations by considering the zero-pressure configuration and residual stress. The findings demonstrate the importance of accurately estimating material properties and stress analysis by including these factors.
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING
(2023)
Article
Materials Science, Ceramics
J. Y. Chan, J. J. Mecholsky
Summary: This paper examines the impact of local residual stress on the fractal dimension of the fracture surface, finding that the fractal dimension remains constant with changes in the c/r ratio under local residual stress conditions.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Biophysics
S. Samaneh Lashkarinia, Gursan Coban, Banu Kose, Ece Salihoglu, Kerem Pekkan
Summary: Recent progress in vascular growth mechanics utilizes computational algorithms to study the volumetric growth of pulmonary arterial tissue following complex cardiovascular patch surgeries. The study reveals that arterial tissue growth leads to tissue stiffening to limit elastic deformations, while high stress and strain during patch reconstruction are compensated by tissue growth.
JOURNAL OF BIOMECHANICS
(2021)
Article
Materials Science, Multidisciplinary
Zi'ang Gao, Jin Gan, Huabing Liu, Xiang Liu, Weiguo Wu
Summary: This study investigates the problem of residual stress relaxation during fatigue crack growth. The results show that the compressive residual stress field has a positive effect on the fatigue performance of peened specimens, but this effect diminishes as the residual stress field relaxes. The proposed method can effectively predict the fatigue crack growth rate of peened specimens while considering the relaxation of residual stress.
MATERIALS & DESIGN
(2023)
Article
Engineering, Industrial
Karl-Christian Schwab, Soeren Keller, Nikolai Kashaev, Benjamin Klusemann
Summary: The aim of the study was to adjust laser shock peening-induced residual stresses by applying defined prestress. Experimental and analytical investigations revealed a linear relationship between prestress and residual stress, with tensile prestress leading to greater penetration depth of compressive residual stress. The study demonstrated the effectiveness of prestress in altering residual stress profiles, showcasing its potential as a useful tool for residual stress design.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Physics, Applied
A. Borroto, S. Bruyere, S. Migot, J. F. Pierson, F. Muecklich, D. Horwat
Summary: This study investigates the growth kinetics of two-phase nanostructures formed in sputter-deposited thin films and how residual stress in the transition zone is governed by the nucleation, growth, and interaction of crystalline regions. The analysis of relevant parameters extracted from scanning electron microscopy images sheds new light on the kinetics of the crystalline-amorphous competitive growth phenomenon and the importance of residual stress measurements in exploring complex film microstructure growth mechanisms.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Biotechnology & Applied Microbiology
Matias Inostroza, Andres Utrera, Claudio M. Garcia-Herrera, Eugenio Rivera, Diego J. Celentano, Emilio A. Herrera
Summary: This study analyzes the impact of geometrical features on the estimation of circumferential residual stresses in arteries. A specific sample of lamb abdominal artery is chosen for analysis and computational tools are used to capture the stress-free geometry. Numerical simulations are then used to reconstruct the sample and estimate the circumferential residual stresses. The results show significant differences in geometric features and residual stresses between idealized and realistic models, indicating the importance of considering more geometrical variables.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Minliang Liu, Liang Liang, Hai Dong, Wei Sun, Rudolph L. Gleason
Summary: In this study, growth evolution laws for modeling arterial growth were constructed using the finite growth theory and a reinforcement learning (RL) approach. The results demonstrated that RL-based growth laws effectively controlled the growth processes and were in good agreement with experimental observations. The distributed RL growth policies achieved residual stress generation, potentially applicable in a finite element setting.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2022)
Article
Nanoscience & Nanotechnology
Chunguo Zhang, Weidong Lu
Summary: This study clarifies the impact of overload on fatigue crack growth rate by enhancing the residual stress contribution behind and ahead of the crack tip and the relationship with crack closure effects. The results indicate that overload-induced residual stress contribution is a key factor in post-overload fatigue crack growth rate, exhibiting different mechanisms behind and ahead of the crack tip.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Engineering, Mechanical
Baobin Xie, Li Li, Qihong Fang, Jia Li, Bin Liu, Zaiwang Huang, Liming Tan
Summary: Residual stresses generated by various preparative techniques can greatly affect the mechanical properties in Ni-based superalloy parts. Research shows that grain growth and local movement of grain boundaries can lead to stress relaxation and reduce residual stress. An analytical theoretical model is proposed to evaluate the trend of residual stress variation with annealing temperature, showing that residual stress decreases with increasing annealing temperature.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Chunlin Xie, Shengfang Liu, Zefang Yang, Huimin Ji, Shuhan Zhou, Hao Wu, Chao Hu, Yougen Tang, Xiaobo Ji, Qi Zhang, Haiyan Wang
Summary: Developing a stable and dendrite-free zinc anode is crucial for the commercialization of zinc metal batteries. However, the understanding of zinc dendrite formation mechanism is still insufficient. This study reveals that interfacial heterogeneous deposition induced by lattice defects and epitaxial growth limited by residual stress are intrinsic causes for zinc dendrite formation. An annealing reconstruction strategy is proposed to eliminate lattice defects and stresses, achieving dense epitaxial electrodeposition of zinc anode. The resulting annealed zinc anodes exhibit dendrite-free morphology and improved electrochemical cycling stability. This work provides a new mechanism for future research on zinc anode modification by highlighting the importance of lattice defects and residual stresses.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
G. S. Schajer
Summary: The study aimed to develop a numerical adjustment scheme to accommodate variations in strain gauge length and width and enable the use of publicly available calibration data provided in E837-20 for general rosette types.
EXPERIMENTAL MECHANICS
(2022)
Article
Engineering, Mechanical
Liangchen Ge, Haotian Chen, Zongjun Tian, Boyuan Xu, Guoran Hua, Yupeng Cao
Summary: This study analyzed the factors affecting the laser shock wave on the surface of a concave model, and verified the reliability of the simulation through comparison with experimental results. It was found that the reflection of longitudinal wave is the most important factor, and changes in curvature affect the incident angle of the laser and the pressure on the material surface.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2021)
Article
Engineering, Chemical
J. Moya, S. Lorente-Bailo, M. L. Salvador, A. Ferrer-Mairal, M. A. Martinez, B. Calvo, J. Grasa
Summary: The study developed and validated a numerical model to simulate the double-sided pan cooking of beef in a domestic setting. The model considers heat and moisture transfer, as well as meat deformation, successfully verifying experimental data of central temperature and weight loss during cooking. It accurately predicts cooking times for different steak thicknesses and is postulated as a useful tool for estimating optimal cooking time according to consumer preferences.
JOURNAL OF FOOD ENGINEERING
(2021)
Article
Engineering, Biomedical
Clara Diaz, Juan A. Pena, Miguel A. Martinez, Estefania Pena
Summary: The study found that only an appropriate multilayer model that includes layer-specific residual stresses can accurately reproduce the mechanical response of the aorta, while a multilayer model without residual stresses is unable to fully capture the aorta's mechanical behavior.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Mathematics
Jacobo Ayensa-Jimenez, Marina Perez-Aliacar, Teodora Randelovic, Jose Antonio Sanz-Herrera, Mohamed H. Doweidar, Manuel Doblare
Summary: Modeling and simulation are essential for understanding complex biological processes like cancer evolution, but the resulting mathematical models often contain many nonlinear, difficult to estimate parameters requiring proper parametric analysis. Through copulas, we successfully addressed the issue of parameter correlation in experimental models and optimized experimental designs to reduce time and cost.
Article
Engineering, Multidisciplinary
Jacobo Ayensa-Jimenez, Mohamed H. Doweidar, Jose A. Sanz-Herrera, Manuel Doblare
Summary: In engineering and sciences, substituting data-driven predictions for well-grounded theoretical models is not straightforward due to the lack of data and the complexity of physical laws involved. The concept of Physically-Guided Neural Networks helps to predict input-output relations in physical systems while meeting physical constraints, accelerating training, reducing data requirements, filtering noise, and improving extrapolation capacity.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2021)
Article
Biology
Marina Perez-Aliacar, Mohamed H. Doweidar, Manuel Doblare, Jacobo Ayensa-Jimenez
Summary: This study utilizes deep learning technology - Convolutional Neural Networks (CNN) to identify cell culture parameters from fluorescence images, predicting the behavior of glioblastoma (GBM). Through model training and experimental validation, the CNN demonstrates high accuracy and reliability in predicting parameters, laying the foundation for the development of future patient-specific tools.
COMPUTERS IN BIOLOGY AND MEDICINE
(2021)
Article
Food Science & Technology
Jara Moya, Silvia Lorente-Bailo, Ana Ferrer-Mairal, Miguel A. Martinez, Begona Calvo, Jorge Grasa, Maria L. Salvador
Summary: The kinetics of heat-induced color changes in beef meat were studied and implemented in a numerical model for double-sided pan cooking of steak. The CIELab color space was used to obtain lightness and reddish tone of the cooked meat. The model successfully verified experimental data for different cooking degrees and determined the optimum turn over time for achieving a similar color profile on both sides of the meat.
EUROPEAN FOOD RESEARCH AND TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Patricia Hernandez-Lopez, Myriam Cilla, Miguel Martinez, Estefania Pena
Summary: This study presents a mechanobiological atheroma growth model modulated by a new haemodynamic stimulus, which showed improved prediction of plaques compared to traditional methods. However, there are cases where haemodynamics alone cannot accurately predict plaque locations, indicating the importance of other biological or genetic factors in atherosclerosis.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Mathematics
Itziar Rios-Ruiz, Myriam Cilla, Miguel A. Martinez, Estefania Pena
Summary: The study proposes a methodology for obtaining dissection parameters in aortic tissue through computational modelling, aiming to understand the mechanisms and progression of aortic dissection. By conducting two different experimental tests and calibrating the dissection properties of each interface, the study aims to contribute to the development of reliable numerical tools for simulating aortic dissection and aortic aneurysm rupture.
Article
Biophysics
Juan A. Pena, M. Cilla, Miguel A. Martinez, Estefania Pena
Summary: This study analyzes the residual stresses and mechanical properties of layer-dissected infrarenal abdominal aorta. The results show that the residual stresses are layer dependent, with the media layer being the softest and the intima and adventitia exhibiting considerable stiffness. The GOH model provides the best fitting to the experimental data.
JOURNAL OF BIOMECHANICS
(2022)
Article
Pharmacology & Pharmacy
Javier Escuer, Andre Fensterseifer Schmidt, Estefania Pena, Miguel A. Martinez, Sean McGinty
Summary: The most common treatment for obstructive coronary artery disease is the implantation of a permanent drug-eluting stent, but it has drawbacks such as delayed healing and challenges in treating re-narrowing. Drug-coated balloons provide a potential solution. This paper presents a computational model that compares drug delivery from drug-coated balloons and drug-eluting stents, and suggests the potential of designing drug-coated balloons with similar safety and efficacy to commercial drug-eluting stents.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2022)
Article
Mathematics
Belen Bonet-Sanchez, Iulen Cabeza-Gil, Begona Calvo, Jorge Grasa, Carlos Franco, Sergio Llorente, Miguel A. Martinez
Summary: This study analyzes the influence of the vessel on thermal efficiency during the cooking process. By designing a numerical model and conducting experimental tests, it was found that thermal conductivity and the thermal contact between the vessel and the glass are the two most influential factors in the heating process. Cooking efficiency can be improved by using a vessel with low thermal conductivity and high concavity.
Article
Biophysics
Itziar Rios-Ruiz, Miguel Angel Martinez, Estefania Pena
Summary: Proper characterisation of biological tissue is crucial for understanding the impact of the biomechanical environment on the cardiovascular system. For aortic dissection, location and dissected layer play significant roles in its development and outcome. A study on healthy porcine aortas has revealed that dissection forces and requirements vary across different locations and layers, emphasizing the importance of characterising aortic tissue specifically.
BIOMECHANICS AND MODELING IN MECHANOBIOLOGY
(2022)
Meeting Abstract
Cardiac & Cardiovascular Systems
Aroa Ruiz Munoz, Andrea Guala, Myriam Cilla, Miguel Martinez, Lydia Dux-Santoy, Gisela Teixido-Tura, Juan Garrido-Oliver, Laura Galian, Augusto Sao-Aviles, Arturo Evangelista, Ignacio Ferreira-Gonzalez, Estefania Pena, Jose Rodriguez-Palomares
CARDIOVASCULAR RESEARCH
(2022)
Article
Biology
Ana Carrasco-Mantis, Teodora Randelovic, Hector Castro-Abril, Ignacio Ochoa, Manuel Doblare, Jose A. Sanz-Herrera
Summary: This study proposes a continuum mechanobiological model that explains the evolution process of tumor spheroids and reveals the relationship between cellular mechanical activity, nutrient consumption, and cell dynamics. Through validation experiments, the model is able to explain different outcomes, such as spheroid growth or shrinking, demonstrating the important role of mechanical interactions among cells in their evolution.
COMPUTERS IN BIOLOGY AND MEDICINE
(2023)
Article
Biochemistry & Molecular Biology
Hector Castro-Abril, Jonathan Heras, Jesus del Barrio, Laura Paz, Clara Alcaine, Marina Perez Aliacar, Diego Garzon-Alvarado, Manuel Doblare, Ignacio Ochoa
Summary: Mechanical interactions between cells and their microenvironment are crucial in determining cell fate, especially in the process of metastasis. Type I collagen hydrogels are commonly used to model the microenvironment in vitro due to their prevalence in the human body. This study analyzes the combined effects of hydrogel stiffness and ultrastructure on the migration patterns of colorectal cancer spheroids. Different types of collagen hydrogels are prepared with varying collagen concentration and gelation temperature, and their stiffness and ultrastructure are characterized. It is found that changes in these parameters result in differences in matrix stiffness and ultrastructural organization, which in turn influence the migration behavior of the spheroids.
MACROMOLECULAR BIOSCIENCE
(2023)
Article
Biophysics
Nathan D. Camarillo, Rafael Jimenez-Silva, Frances T. Sheehan
Summary: This article discusses the statistical dependence between multiple measurements from the same participant and provides recommendations for using these measurements when they are not independent.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
J. Huet, A. -S. Boureau, A. Sarcher, C. Cornu, A. Nordez
Summary: Standard compression in freehand 3D ultrasound induces a bias in volume calculations, but minimal compression and gel pad methods have similar results. With a trained examiner and precautions, the bias can be minimized and become acceptable in clinical applications.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
C. Lariviere, A. H. Eskandari, H. Mecheri, F. Ghezelbash, D. Gagnon, A. Shirazi-Adl
Summary: Recent developments in musculoskeletal modeling have focused on model customization. Personalization of the spine profile may affect estimates of spinal loading and stability. This study investigates the biomechanical consequences of changes in the spinal profile and finds that personalizing the spine profile has medium to large effects on trunk muscle forces and negligible to small effects on spinal loading and stability.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Luke T. Mattar, Arash B. Mahboobin, Adam J. Popchak, William J. Anderst, Volker Musahl, James J. Irrgang, Richard E. Debski
Summary: Exercise therapy fails in about 25.0% of cases for individuals with rotator cuff tears, and one reason for this failure may be the inability to strengthen and balance the muscle forces that keep the humeral head in the correct position. This study developed computational musculoskeletal models to compare the net muscle force before and after exercise therapy between successfully and unsuccessfully treated patients. The study found that unsuccessfully treated patients had less inferiorly oriented net muscle forces, which may increase the risk of impingement.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Natsuki Sado, Takeshi Edagawa, Toshihide Fujimori, Shogo Hashimoto, Yoshikazu Okamoto, Takahito Nakajima
Summary: The existing methods for predicting hip and lumbosacral joint centres in Japanese adults are biased and differ between sexes. We propose new regression equations that consider soft-tissue thickness, sex differences, and a height-directional measure, and validate them using leave-one-out cross-validation.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Peimin Yu, Xuanzhen Cen, Qichang Mei, Alan Wang, Yaodong Gu, Justin Fernandez
Summary: This study aimed to explore the intra-foot biomechanical differences among individuals with chronic ankle instability (CAI), copers, and healthy individuals during dynamic tasks. The study found that copers and CAI individuals had smaller dorsiflexion angles and copers presented a more eversion position compared to healthy participants. Copers also had greater dorsiflexion angles in the metatarsophalangeal joint and more inversion moments in the subtalar joint during certain tasks. These findings can help in designing interventions to restore ankle joint functions in CAI individuals.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Jon Skovgaard Jensen, Anders Holsgaard-Larsen, Anders Stengaard Sorensen, Per Aagaard, Jens Bojsen-Moller
Summary: This study investigates the biomechanical effects of robot-assisted body weight unloading (BWU) on gait patterns in healthy young adults. The results show that dynamic robot-assisted BWU enables reduced kinetic requirements without distorting biomechanically normal gait patterns during overground walking.
JOURNAL OF BIOMECHANICS
(2024)
