Determine maximum stress and modulus of elasticity, Mechanical Engineering

Assignment Help:

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


Related Discussions:- Determine maximum stress and modulus of elasticity

What are advantages and limitations of job evaluation, a) Describe producti...

a) Describe productivity. Give comparison of production and productivity. b) Write down characteristics of batch production. c) What are advantages and limitations of job eva

First law of thermodynamics, common formula for first law of thermodynamics...

common formula for first law of thermodynamics #Minimum 100 words accepted#

Friction, FRICTION: you have learnt laws of friction and problems invo...

FRICTION: you have learnt laws of friction and problems involving dry friction. The relative sliding motion of one body on another body is resisted by forces called as frictio

Layout studies and analyses, Layout design development is supported by a nu...

Layout design development is supported by a number of studies and reviews, including: • Hazard identification (HAZID Study) and risk assessments - both qualitative and quantita

Home home, why 4R kinematic chain do not form different mechanisms?

why 4R kinematic chain do not form different mechanisms?

Determine the natural circular frequencies, The two-storey  frame shown in ...

The two-storey  frame shown in Figure Q4 is such  that  the self-mass may be considered to be located at the beam levels and the beams may be presumed to be rigid.  The self-mass (

Scope of pipeline systems, Q. Scope of pipeline systems? This specifica...

Q. Scope of pipeline systems? This specification covers the specific materials, surface preparation, method of application, quality assurance, and repair necessary for the appl

Determine the chemical formulate for refrigerant, (a) Draw P-H and T-S diag...

(a) Draw P-H and T-S diagrams for following cases : (3) (i) Cycle with superheated vapour before compression. (ii) Cycle with sub-cooling or under-cooling of refrigerant.

Equilibrium conditions - non concurrent force system, Equilibrium condition...

Equilibrium conditions: What are equilibrium conditions for non concurrent force system? Sol.: For the Equilibrium of non concurrent forces there are three conditions:

Gasket installation in module site installation, Q. Gasket Installation in ...

Q. Gasket Installation in Module site installation? Gasket will be installed after modules are set. Normally RTJ flanges require mating flanges to be spread with jacks and then

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