FLEXION PLANE SIMPLE


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RDM : Flexion plane simple Prof : M ELBEKRI V- CONDITION DE RÉSISTANCE : Pour des raisons de sécurité la contrainte normale due à la flexion doit reste inférieur à la résistance pratique à l'extension On défini par le quotient de la résistance élastique à l'extension par le coefficient de sécurité s

PDF Cours RDM: Flexion simple

Flexion simple Cours RDM / A U : 2012-2013 Cours résistance des matériaux 37 Chapitre VI : Objectifs Déterminer la répartition des contraintes dans une section de poutre sollicitée à la flexion Vérifier la condition de résistance pour une poutre sollicitée à la flexion Dimensionner une poutre sollicitée à la flexion

PDF 09_Flexion_plane_simple [Mode de compatibilité]

Flexion plane simple Généralités Effort tranchant-moment de flexion Contraintes normales Contraintes tangentielles Contrainte normale vs contrainte tangentielle Etude des déformations Systèmes hyperstatiques Lire le ploly pages 87-111

PDF Welcome Anatomical Directions Anatomical Planes Flexion

There are two ways to move through this module: Scroll through the PDF Click on the title headings on the left side of the screen

PDF FLEXION SIMPLE

FLEXION SIMPLE 1) Introduction expérimentale : considérons une poutre reposant sur deux appuis soumise à une charge concentrée verticale

Navigation

There are two ways to move through this module: Scroll through the PDF Click on the title headings on the left side of the screen clinicalanatomy.ca

Anatomical Directions

Superior Anatomical directions are used to orient the position of a body part in relation to the rest of the body Superior: Above; towards the head Inferior: Below; towards the feet Proximal: Closer to an attached area, or the trunk Distal: Further from an attached area, or the trunk Medial: Toward the midline Lateral: Away from the midline Anterio

Posterior (Dorsal): Back of the body (not shown)

NOTE: The terms proximal and distal are used to describe the upper and lower limbs only. For example: The hand is distal to the elbow (i.e., the hand is further away from an attached area [the shoulder] than the elbow) Anterior (Ventral) Proximal Lateral Distal Proximal Lateral Inferior clinicalanatomy.ca

Anatomical Position

Directions Planes Anatomical Planes Frontal (Coronal) plane: Divides front (anterior) from back (posterior) clinicalanatomy.ca

To remember the TRANSVERSE (HORIZONTAL)

PLANE, imagine a magic trick where the magician pretends to saw their assistant in half Memorization Hint: clinicalanatomy.ca

To remember the FRONTAL (CORONAL) PLANE,

imagine a crown with a sharp, blade-like edge that, when worn on the head, slices all the way through the body. Ouch, that’s a coronation gone wrong Flexion: Movement that decreases the angle between two bones or two parts of the body Extension: Movement that increases the angle between two bones or two parts of the body Plane of movement: Sagitta

Flexion: Movement that decreases the angle between two bones or parts of the body

* Note: This photo also demonstrates flexion of the leg at the knee – can you see it? Flexion of the hand at the wrist Flexion of the head at the neck Flexion of the spine Flexion of the arm at the shoulder Flexion of the thigh at the hip* Flexion of the forearm at the elbow Flexion of the leg at the knee Click here to see how the angles change wit

Extension: Movement that increases the angle between two bones of parts of the body

* NOTE: This photo also demonstrates flexion of the thigh at the hip – can you see it? Extension of the hand at the wrist Extension of the head at the neck Extension of the spine Extension of the arm at the shoulder Extension of the thigh at the hip Extension of the forearm at the elbow Extension of the leg at the knee* Click here to see how the an

(laterally)

Adduction: Movement of the limb/digit towards the midline (medially) Plane of movement: Frontal plane clinicalanatomy.ca

Memorization Hint:

To remember ABduction, imagine something being taken away Memorization Hint: To remember clinicalanatomy.ca

ADduction, think

together and added up of things being brought Memorization Hint: ABduction and ADduction are the same movements you make when you do jumping jacks clinicalanatomy.ca

Movements

Rotation: Turning around a central longitudinal axis The head can be rotated to the left and the right (i.e., shaking the head “no”) Rotation of the limbs occurs when the forward-facing (anterior) surface is turned internally (medially) towards the midline, or externally (laterally), away from the midline clinicalanatomy.ca

Pronation: Rotation

of the forearm (radius bone) causing the palm to face downwards Supination: Rotation clinicalanatomy.ca

inwards (medially),

of the forearm (radius bone) (laterally), causing the palm to face upwards outwards & Supination clinicalanatomy.ca

The hands are capable of many movements, due to their complex structure of muscles and joints

Note: In the hand, the third finger (middle finger) is considered midline clinicalanatomy.ca

Memorization Hint:

Imagine holding a stack of plates, with your thumb raised to support them. In this position, the thumb is ABducted. Movements 1 Plantar Flexion: Pushing or pointing the toes and the ball of the foot down towards the ground (i.e., standing on “tip toes”) Dorsiflexion: Standing on the heel of the foot, with the toes pointing up towards the sky Invers

Movements 2

Superior Elevation: Moving a body part upwards (superiorly) clinicalanatomy.ca

Where it happens: Eyelid, jaw (mandible), shoulder

Posterior Anterior Inferior Protraction: Moving a body part forwards (anteriorly) clinicalanatomy.ca

Circumduction: Movement at the joint that causes the limb to move in a circle

Note: Circumduction is a compound movement that involves abduction, Where it happens: Ball-and-socket joints (e.g., shoulder, hip) Lateral flexion at the spine clinicalanatomy.ca

Quiz 2 Which description correctly describes the anatomical movement?

(Click on each photo to see a larger image) a) Flexion of the hands at the wrists b) Extension of the hands at the wrists a) Flexion at the spine b) Extension at the spine a) Flexion of the thigh at the hip b) Extension of the thigh at the hip a) Pronation of the forearm b) Supination of the forearm a) Eversion of the feet b) Inversion of the feet

Flexion simple bac technique génie mécanique

Flexion simple bac technique génie mécanique

Cours 1: Résistance des Matériaux (RDM II). Flexion simple plane (les contraintes).

Cours 1: Résistance des Matériaux (RDM II). Flexion simple plane (les contraintes).

RDM : Cours flexion Simple et exercice partie 1

RDM : Cours flexion Simple et exercice partie 1

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