Stiffness properties in composite materials , Mechanical Engineering

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.

 

 

Posted Date: 2/21/2013 8:00:23 AM | Location : United States







Related Discussions:- Stiffness properties in composite materials , Assignment Help, Ask Question on Stiffness properties in composite materials , Get Answer, Expert's Help, Stiffness properties in composite materials Discussions

Write discussion on Stiffness properties in composite materials
Your posts are moderated
Related Questions
Types of Splitwedge gate arrangement need to understand

a) You have been assigned to design a robotics spot welding experiment for low carbon steel sheets. You found an experimental power source for spot welding process which is designe

Second Gear Position: When gear M2 on the main shaft is in mesh with gear C2 on the countershaft then this is known as second gear position. To rotate free gear M2 with the m

Q. What do you mean by Moulding materials? Various types of materials are used in the foundries for the manufacture of casting moulds and cores. These materials are divided in

Illustrate the general shear failure in bearing capacity. General Shear Failure: In this case of failure, contiguous failure surfaces develop between the edges of the footin

Linear Sweep In linear sweep, the path is a linear or circular vector described by a linear, most often parametric. Linear sweep can be divided into translational and rotationa

Tensile strength: What will be its ultimate tensile strength? Solution The condition for necking is = n = 0.3077 Hence using this value of , the true stress at ne

Application of group technology point wise

For Elevated Temperatures, Other Materials  High temperature creep is a significant phenomenon to be guarded in various machines like gas turbines, missiles, reentry vehicles a

Calculate the value of ∫ Π/2 sinx dx by Simpson's 1/3 rule using 11 ordinates. Determine the root of equation xe x = cosx using secant method correct to four decimal places.