Which type of fracture appears on the opposite side from the impact?

Which type of fracture appears on the opposite side from the impact?

The radial cracks begin on the opposite side of the force at the point where the projectile hits the glass and radiate out from the origin of the impact. They will always end if they encounter an existing fracture line.

Do radial fractures occur on the same side as the impact?

Concentric fractures occur on the side of impact, and radial fractures occur on the side opposite the impact.

Where do concentric fracture lines appear in relation to the point of impact?

Concentric cracks are fractures forming in an approximately circular pattern around the point of impact. They are usually in straight segments that terminate in an existing radial crack. Cone or crater (Hertzian cone) is a funnel-shaped area of damage caused by a high-velocity impact.

What side do radial fractures occur on?

Radial fractures occur first on side OPPOSITE the force.

How are the Conchoidal lines of the radial cracks different from the fracture lines of the concentric cracks?

The two types of conchoidal fractures are radial and concentric. (See Figures 1 and 2.) Radial fractures extend outward in a line from the point on the glass where the force originated. Concentric fractures make circular patterns around the point of origin of the force.

What comes first radial or concentric?

A radial fracture is the first fracture that forms on the surface opposite that of the penetrating force, concentric fractures are formed by the continued motion of the force which places tension on the front of the surface and encircle the hole.

What is the difference between radial and concentric fractures?

Radial fractures are similar to the spokes of a wheel. Concentric fractures connect the radial fractures in a pattern similar to a spider web.

Which side would the radial lines be found front or back of the piece of glass?

The purpose of this determination is to establish which direction the projectile went through the glass. The method used to establish this is the 4R Rule: Ridge lines on Radial fractures are at Right angles to the Rear.

Which comes first radial or concentric fractures?

(a) Radial cracks are formed first, commencing on the side of the glass opposite to the destructive force. (b) Concentric cracks occur afterward, starting on the same side as the force.

What is a right distal radius fracture?

When the radius breaks near the wrist, it is called a distal radius fracture. The break usually happens due to falling on an outstretched or flexed hand. It can also happen in a car accident, a bike accident, a skiing accident or another sports activity.

What is a radial fracture of the arm?

The radial head is at the top of the radius bone, just below your elbow. A fracture is a break in your bone. The most common cause of a radial head fracture is falling with an outstretched arm.

Where are the ridge lines on a radial fracture?

In radial fractures, the ridge lines are always perpendicular to the side opposite the impact. (The use of ridge lines to determine point of impact in concentric fractures is not reliable.) Radial fractures follow the 4-R Rule. Ridge lines on Radial fractures are at Right. angles to the Rear (side opposite the impact).

What are the features of a glass fracture?

Fracture features in a piece of glass reflect the nature of the glass and the direction of travel and velocity of the breaking object. Glass fracture examinations can provide information as to the direction of the breaking force and the sequence of multiple impacts.

What are the lines on a broken window?

Concentric fractures extend from one radial fracture to another. Edges of broken pieces of window glass bear a number of curved lines, called ridge lines. These ridge lines are almost parallel to one side of the glass and perpendicular (at right angles) to the other.