Stiffness properties in composite materials , Mechanical Engineering

Assignment Help:

There are five elastic properties needed to represent the elastic behaviour of a unidirectional laminate under in-plane loading, but only four of these are independent.

The five properties are the modulus of the laminate parallel and perpendicular to the fibre direction (E1 and E2), the associated Poisson's ratios (n12, n21), and the in-plane shear modulus G12. The two different Poisson's ratios are defined as follows:

n12, the larger value, gives the strain in the '2' direction associated with a mechanical strain in the '1' direction.

n21, the smaller value, gives the strain in the '1' direction associated with a mechanical strain in the '2' direction.

Q4 A sample of unidirectional CFRP 2 mm thick and 20 mm wide, with elastic properties as above, is subjected to a single tensile load of 20 kN (parallel to the fibre direction). Determine the strains parallel and perpendicular to the fibre direction.

 

 


Related Discussions:- Stiffness properties in composite materials

Draw a diagram of a simple carburettor, a) Draw a diagram of a simple carbu...

a) Draw a diagram of a simple carburettor and briefly explain its function. b) What are the basic characteristics of fuels for CI engines.

Determine the location of the hydraulic jump, A rectangular channel of widt...

A rectangular channel of width 12ft has an upstream slope of 0.02ft/ft and a downstream slope of 0.0005 ft/ft. Both reaches have lengths of 500 ft. The upstream reach has a Manning

Determine and illustrate about the earth pressure at rest, Determine and il...

Determine and illustrate about the earth pressure at rest. EARTH PRESSURE AT REST You have seen that the active pressure is the minimum lateral pressure while the passive pr

Explain concept of a corner or angled window, Question 1: Retail design...

Question 1: Retail design tends to be rapid turnover business. Your potential client needs a window display for his retail sports wear shop for the summer sales. The assumed bu

Co2 welding gun / torch-co2 welding, CO 2 Welding Gun / Torch The torc...

CO 2 Welding Gun / Torch The torch assembly consists of conduits to supply the consumable wire electrode and the shielding gas into the welding gun. The torch assembly may als

Piercing press tool, computer aided design of piercing press tool

computer aided design of piercing press tool

State the postulates of special theory of relativity, State the postulates ...

State the postulates of special theory of relativity and deduce from them the Lorentz transformations. Define an inertial frame of reference and derive the Lorentz transformatio

Temporary stone scuppers - culverts, Temporary Stone Scuppers: In hil...

Temporary Stone Scuppers: In hill roads, it is customary to cut the roads from the hill-face and to open up the road immediately thereafter to traffic. Further improvements s

Tensile strain, T ensil e Strain: When the tensile load acts on body...

T ensil e Strain: When the tensile load acts on body then there will be decrease in cross sectional area and an increase in length of body. The ratio of increase in length t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd