Determine maximum stress and modulus of elasticity, Mechanical Engineering

Determine maximum stress and modulus of elasticity:

 A composite of glass fibres and epoxy has all of fibres laid along the length and is needed to carry a stress of 12 MPa. The limiting stress carried by fibre & epoxy are respectively, σf = 2400 MPa, and σm = 80 MPa. The volume ratios and modulii of elasticity are explained below :

V f  = 0.7,  Vm = 0.3,  E f  = 72 MPa,         Em = 3 MPa

Determine maximum stress the composite might carry in the direction of fibres & the modulus of elasticity.

Solution

The stress that composite can carry

σc = V f  σ f + Vm σm

= 0.7 × 2400 + 0.3 × 80

= 1680 + 24 = 1704 MPa

Modulus of elasticity of composite

E = V f E f  + Vm  Em

= 0.7 × 72 + 0.3 × 3

= 50.4 + 0.9 = 51.3 MPa

Posted Date: 1/22/2013 1:41:04 AM | Location : United States







Related Discussions:- Determine maximum stress and modulus of elasticity, Assignment Help, Ask Question on Determine maximum stress and modulus of elasticity, Get Answer, Expert's Help, Determine maximum stress and modulus of elasticity Discussions

Write discussion on Determine maximum stress and modulus of elasticity
Your posts are moderated
Related Questions
Beam: Sol.: A beam can be defined as a structural element which has one dimension (length) considerable larger As compared to the other two direction, which is breadth an

corrosion in boilers is prevented or minimized by maintaining of boiler water

Explain Degree of Freedom - Jig and Fixture The complete location of components inside a jig or fixtures can be understood with the help of figure. The work piece is a

Study literature and give a discussion of the applicability of the continuum mechanics hypothesis to the nano-scale mechanics (solids and fluids). Your paper must be detailed but c

Q. CSCC in Gas Streams? Due to process upset of FWKO or Treater, there may be chance of chloride carry over into the gas lines. Depending on the chloride contents of formation

Charpy impact tests, when required shall comply. Impact tests shall be conducted at the minimum design metal temperature or at a lower temperature and shall meet or exceed energ

how to calculate material removal rate in broaching?

Explain Principal Process for Electro Chemical Machining It is also called electrolytic machining or anodic cutting. This process is quite commonly used for shaping har

TYPE OF DEFECTS AND THEIR SIGNIFICANCE   Defects in weldments in general can be classified as follows: I. Defects involving inadequate bonding Lack of fusion Incom

work done by an impulse turbine