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
Condition for Carnot theorem - thermodynamics: 1 .   If T 1  = T 2 ; No work, = 0 2 .   Higher the temperature difference, greater the efficiency. 3.   For the same


Corollaries of first law of thermodynamics: First law of thermodynamics has significant corollaries. Cor ollary 1: (First Law for process). There exists property of

ppt of appling queuing model in railwy reservation

A tensile test on a specimen having an initial diameter of 13.11 mm and an initial gauge length of 200.0 mm, gave the following data:

Diffrence between external diameter and internal diameter: A compound tube is built by shrinking one tube on another, the ultimate dimension being, 80 mm internal diameter, 16

I have 5000 kg boiler capacity. In flow of 1 m3 gas flow how much steam I can produce

Q. Explain about Hardness testing? When indicated on equipment or vessel data sheets, hardness testing shall be performed as follows: a) Perform hardness tests at or near th

Q. Materials used in insulation? All materials must be non-corrosive, compatible with other materials and used in accordance with the Manufacturer's recommendations. All mat

CAUSES AND REMEDIES OF MOTORCYCLE PROBLEMS  If Engine Overheats Causes of Problem Remedy   Incorrect spark plug make/model