digplanet beta 1: Athena
Share digplanet:

Agriculture

Applied sciences

Arts

Belief

Business

Chronology

Culture

Education

Environment

Geography

Health

History

Humanities

Language

Law

Life

Mathematics

Nature

People

Politics

Science

Society

Technology

In engineering, shear strength is the strength of a material or component against the type of yield or structural failure where the material or component fails in shear. A shear load is a force that tends to produce a sliding failure on a material along a plane that is parallel to the direction of the force. When a paper is cut with scissors, the paper fails in shear.

In structural and mechanical engineering the shear strength of a component is important for designing the dimensions and materials to be used for the manufacture/construction of the component (e.g. beams, plates, or bolts) In a reinforced concrete beam, the main purpose of stirrups are to increase the shear strength.

For shear stress \tau applies

\tau = \frac {\sigma_1 - \sigma_3}{2} ,

where

\sigma_1 is major principal stress
\sigma_3 is minor principal stress

In general: ductile materials (e.g. aluminium) fail in shear, whereas brittle materials (e.g. cast iron) fail in tension. See tensile strength.

To calculate:

Given total force at failure (F) and the force-resisting area (e.g. the cross-section of a bolt loaded in shear), Ultimate Shear Strength (\tau) is:

\tau = \frac {F}{A} = \frac {F}{\pi r_{bolt}^2} = \frac {4F}{\pi d_{bolt}^2}

As a very rough guide:[1]

Material Ultimate Strength Relationship Yield Strength Relationship
Steels USS = approx. 0.6*UTS SYS = approx. 0.58*TYS
Ductile Iron USS = approx. 0.9*UTS SYS = approx. 0.75*TYS
Malleable Iron USS = approx. 1.0*UTS
Wrought Iron USS = approx. 0.83*UTS
Cast Iron USS = approx. 1.3*UTS
Aluminiums USS = approx. 0.65*UTS SYS = approx. 0.55*TYS

USS: Ultimate Shear Strength, UTS: Ultimate Tensile Strength, SYS: Shear Yield Stress, TYS: Tensile Yield Stress

Material Ultimate stress (Ksi) Ultimate stress (MPa)
Fiberglass/epoxy (23 o C)[2] 7.82 2.6

When values measured from physical samples are desired, a number of testing standards are available, covering different material categories and testing conditions. In the US, ASTM standards for measuring shear strength include ASTM B831, D732, D4255, D5379, and D7078. Internationally, ISO testing standards for shear strength include ISO 3597, 12579, and 14130.[3]

See also[edit]

References[edit]

  1. ^ http://www.roymech.co.uk/Useful_Tables/Matter/shear_tensile.htm
  2. ^ Watson, DC (May 1982). Mechanical Properties of E293/1581 Fiberglass-Epoxy Composite and of Several Adhesive Systems (Technical report). Wright-Patterson Air Force, Ohio: Air Force Wright Aeronautical Laboratories. p. 16. Retrieved 24 October 2013. 
  3. ^ S. Grynko, "Material Properties Explained" (2012), ISBN 1-4700-7991-7, p. 38.



Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Shear_strength — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
205451 videos foundNext > 

Shear strength of soil - part 1

The first of two videos on shear strength suitable for an introductory module in geomechanics.

Testing Shear Strength of Spaghetti

Strength of Materials - Shear Stress - Example 1

In this example I explain the very basic concept of Shear Stress.

Soil Strength: Drained and Undrained Shear Strength

4.4 - Drained and Undrained Shear Strength [Video 9 of 12] Videos designed and presented by Declan Phillips PhD P.E. and Alan O Reilly BEng and the generous ...

Adhesive Lap Joint Shear Strength Test - Simialr to ASTM D1002

This video shows an adhesive lap joint shear strength test similar to ASTM D1002 Read a lot more about this test here: http://info.admet.com/specifications/b...

The Spectacular Spider-Man - Season 2 - Shear Strength - FULL EPİSODE

The Spectacular Spider-Man FULL EPİSODE the spectacular spider man intro the spectacular spider man gwen stacy died the spectacular spider man venom the spec...

Carleton University - CIVE 3208 Lab 6: Direct Shear Test

About the shear box apparatus -Which soil to use -How to assemble the shear box -How to perform the experiment (motor speed, strain gauges, setup the softwa...

Soil Strength: Basic Introduction to Strength

4.1 - Basic Introduction to Strength [Video 6 of 12] Videos designed and presented by Declan Phillips PhD P.E. and Alan O Reilly BEng and the generous suppor...

The Spectacular Spider Man Season 2 Episode 4 Shear Strength FULL EPİSODE

The Spectacular Spider-Man FULL EPİSODE the spectacular spider man intro the spectacular spider man gwen stacy died the spectacular spider man venom the spec...

Shear strength test for butter

There are wide selections of butter and margarine based on consumers' needs, such as smoothness, softness, low fat, reduced calorie, and so on. Product devel...

205451 videos foundNext > 

571 news items

 
SportingNews.com
Tue, 18 Nov 2014 13:45:00 -0800

While Borland doesn't have great size or bulk, he does a fantastic job in attacking his block, staying low and playing with great leverage, which forces interior offensive lineman to win with feet rather than shear strength. It doesn't get reflected on ...

Mountain Xpress

Mountain Xpress
Fri, 07 Nov 2014 11:07:03 -0800

“Even when we tested the work with no metal fastener at all — just the tile, epoxy and the cinder block — we never found the shear strength,” Wilkinson says. “The cinder block would always break first.” The bond, meanwhile surpassed 7,000 pounds of ...

Business Wire India (press release)

Business Wire India (press release)
Wed, 12 Nov 2014 16:56:15 -0800

When subject to thermal analysis over one year, BZ prepreg formulas demonstrate minimal change in differential scanning calorimetry (DSC) characteristics at room temperature. They also maintain their interlaminate shear strength (ILSS) after 12 months ...
 
NETCOMPOSITES
Tue, 28 Oct 2014 09:07:30 -0700

Specially designed for use in pultrusion, Bayer's Baydur PUL 2500 resin is a two-component polyurethane system that offers excellent composite properties, including superior elongation to failure characteristics, greater shear strength and higher ...

High Performance Composites

High Performance Composites
Fri, 31 Oct 2014 20:11:15 -0700

Today's tensile strengths are only a fraction of what is theoretically possible, but the main design drivers in aerospace design are not tensile strength and stiffness, but compression and shear strength, where the major advancements need to be made.

Science Times

Science Times
Fri, 31 Oct 2014 12:18:45 -0700

Since her disappearance on July 2, 1937, many have questioned the final hours of pilot Amelia Earhart's life. Was she lost at sea when her plane disappeared over the South Pacific? Or did she go down with her plane? While many feared the worst, urban ...
 
Foundry-Planet.com
Mon, 03 Nov 2014 05:41:15 -0800

Up to now could in the green sand preparation in the used sand the parameters residual moisture, temperature, bulk density and batch weight and in the prepared sand the variables compactibility, compression strength, shear strength, moisture and ...
 
geosynthetica.net (press release)
Wed, 29 Oct 2014 12:29:17 -0700

The subgrade soils simply had very low shear strength in their saturated state. Titan Environmental - Geogrid composites. Overlapping panels of the TE-BXC30 biaxial geogrid composite. The geogrid is bonded to a nonwoven geotextile, thus providing ...
Loading

Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight