Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Castigliano's Theorem01:18

Castigliano's Theorem

1.1K
Castigliano's theorem analyzes displacements and rotations in elastic structures. It relates the derivative of elastic strain energy to the applied forces or moments, allowing for the calculation of deformations. The theorem states that the partial derivative of the total strain energy of a system with respect to a specific load results in the displacement at the point where the load is applied. This principle applies to both forces and moments.
1.1K
Structural Classification of Joints01:20

Structural Classification of Joints

7.7K
Joints, also known as articulations, are classified based on their structural characteristics, i.e., based on whether the articulating surfaces of the adjacent bones are directly connected by fibrous connective tissue or cartilage, or whether the articulating surfaces contact each other within a fluid-filled joint cavity. These differences serve to divide the joints of the body into three structural classifications.
A fibrous joint is where the adjacent bones are united by fibrous connective...
7.7K
Deformation of Member under Multiple Loadings01:11

Deformation of Member under Multiple Loadings

511
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
511
Temperature Dependent Deformation01:12

Temperature Dependent Deformation

454
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
454
Logarithmic Differentiation01:28

Logarithmic Differentiation

87
When a car’s weight and driving forces act on a tire, they impose an external load on the rubber material. This load is resisted internally by forces distributed throughout the tire structure, which are defined as stress. The resulting deformation of the rubber due to this stress is quantified as strain. The relationship between stress and strain governs how the tire deforms under load and is central to understanding its mechanical response during operation.Rubber exhibits a nonlinear...
87
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity01:15

Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity

644
Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
644

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

The mitochondrial protease, LonP1, is a potential cardioprotective target for attenuating doxorubicin-induced cardiomyocyte death.

Journal of translational medicine·2026
Same author

Inverse design of periodic microstructures with targeted nonlinear mechanical behaviour.

Structural and multidisciplinary optimization : journal of the International Society for Structural and Multidisciplinary Optimization·2025
Same author

Psychological distress in heart failure patients: Implications for healthcare utilization and expenditure.

European journal of heart failure·2024
Same author

An Unlikely Cause of Chest Pain: Recurrent Takotsubo Cardiomyopathy.

Journal of community hospital internal medicine perspectives·2024
Same author

Dogs Licks Are Not Benign: Pasturella Multocida Bacteremia From Household Dog.

Cureus·2024
Same author

CardioMEMS monitoring device migration: A rare complication.

Radiology case reports·2024

Video Experimental Relacionado

Updated: Feb 24, 2026

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion
09:32

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion

Published on: April 11, 2018

10.4K

Un modelo variacional diferenciable para autocontacto y fractura estructural

Mirko Ciceri1, Charlie Aveline1, Dilaksan Thillaithevan1

  • 1Department of Aeronautics, Imperial College London, Exhibition Rd, South Kensington, London, SW7 2AZ UK.

Engineering with computers
|February 23, 2026
PubMed
Resumen

Este estudio presenta un modelo numérico unificado para el autocontacto estructural y la propagación de grietas. El nuevo marco analiza de manera eficiente comportamientos no lineales complejos, permitiendo un diseño estructural avanzado.

Palabras clave:
FracturaCampo de faseContacto de tercer medio

Más Videos Relacionados

A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation
09:12

A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation

Published on: June 28, 2015

9.0K
Semiautomated Longitudinal Microcomputed Tomography-based Quantitative Structural Analysis of a Nude Rat Osteoporosis-related Vertebral Fracture Model
07:12

Semiautomated Longitudinal Microcomputed Tomography-based Quantitative Structural Analysis of a Nude Rat Osteoporosis-related Vertebral Fracture Model

Published on: September 28, 2017

8.7K

Videos de Experimentos Relacionados

Last Updated: Feb 24, 2026

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion
09:32

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion

Published on: April 11, 2018

10.4K
A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation
09:12

A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation

Published on: June 28, 2015

9.0K
Semiautomated Longitudinal Microcomputed Tomography-based Quantitative Structural Analysis of a Nude Rat Osteoporosis-related Vertebral Fracture Model
07:12

Semiautomated Longitudinal Microcomputed Tomography-based Quantitative Structural Analysis of a Nude Rat Osteoporosis-related Vertebral Fracture Model

Published on: September 28, 2017

8.7K

Área de la Ciencia:

  • Mecánica computacional
  • Ciencia de materiales
  • Ingeniería estructural

Sus antecedentes:

  • La modelización numérica del autocontacto estructural y la propagación de grietas es un desafío debido a fenómenos discontinuos.
  • Los métodos tradicionales requieren el seguimiento explícito de puntos de contacto y sitios de grietas predefinidos, lo que limita el análisis.
  • Los modelos existentes a menudo requieren tratamientos separados para el contacto y la fractura, lo que aumenta la complejidad.

Objetivo del estudio:

  • Desarrollar un marco variacional unificado y numéricamente estable para modelar el autocontacto estructural y la propagación de grietas.
  • Superar las limitaciones de los métodos tradicionales al evitar el seguimiento explícito de puntos de contacto y la iniciación predefinida de grietas.
  • Crear un modelo numérico eficiente y diferenciable para el análisis estructural no lineal complejo.

Principales métodos:

  • Utilización de un modelo de contacto de tercer medio hiperelástico para el autocontacto estructural.
  • Representación de la fractura mediante un enfoque de campo de fase dentro de una formulación variacional unificada.
  • Incrustación de estructuras en un tercer medio compresivo-endurecedor para facilitar la transferencia de fuerza y modelar el comportamiento del vacío.

Principales resultados:

  • Un modelo numérico diferenciable novedoso que captura de manera eficiente tanto el autocontacto como la propagación de grietas.
  • Demostración de un marco unificado que supera la necesidad de puntos de contacto predefinidos y sitios de iniciación de grietas.
  • Acoplamiento exitoso de fenómenos de contacto y fractura, incluido el comportamiento del material de vacío.

Conclusiones:

  • El marco desarrollado proporciona una herramienta eficiente para analizar comportamientos estructurales no lineales complejos.
  • La naturaleza diferenciable del modelo permite una integración perfecta en la optimización de la topología.
  • Permite a los diseñadores aprovechar el autocontacto y la falla del material como características de diseño funcionales para un rendimiento mejorado.