Composite Analysis for Modulus and Strength in the Longitudinal Direction

This video presents a lecture on the theoretical analysis for elastic modulus and strength of a unidirectional continuous fibre composite in the longitudinal direction. You will learn about the calculations of the elastic modulus and strength of a composite if you know those properties of the fibre and the matrix and the volume fraction of the fibre. The video also explains why there is no strengthening in such a composite if the fibre volume fraction is below a critical value.
Summary:
Best reinforcement for a composite can be achieved in unidirectional continuous fibre composite.
Both, modulus and strength of an unidirectional fibre composite in the logitudinal direction can be predicted by the rule of mixture.
There is a critical fibre volume fraction below which fibres do not provide any reinforcement to the matrix.

[j.gordonleishman]

A nice clear explanation of composite modulus and strength. Thank you.

[hassanejaz]

Very well explained, 👍 Can you please share the details of the book that you are following for these! Thank You.

[Aviator]

This is the best video on composite material I have seen. Does this also apply to a carbon-foam-carbon sandwich panel?

[vinaykumarsambalmath]

Damn! So kuch beauty hidden inside.. A big Thank you sir for bringing this...
Just a request iam carrying my fatigue analysis with the same? Sir so much to learn from you and I have couple of queries which iam stuck into present! It's a die hard request please tell me the how can I contact you?.. I believe you can solve the queries... Thanking you

[chinmaybawaskar]

can we do the same calculations for compression also listed of tension

[IEleMenTIx]

Good video, especially the part around 15:20. But how does 15:20 explain that failure is often matrix-initiated if the matrix still has theoretically that much strain "left". Both are in isostrain condition. Is it due to local overstressing of the matrix at the point of fibre fracture?

[samgeorge]

This critical volume fraction is needed for random alligned short fiber composites?
For example: in ppgf20, ppgf30

[Xyz-rted]

Hi, if two different woods are vertically laminated together can we calculate the final wood product's elastic modulus with the rule of mixture? for example i have two different woods and i will create a 50/50 ratio a hardwood/softwood. can i add their elastic modulus together for the final product's elastic modulus?

[anmolgupta]

Sir inverse rule of mixture is known as tranverse direction, it is true or not?