Composite Analysis for Modulus and Strength in the Longitudinal Direction

[@j.gordonleishman6401]

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

[@anmolgupta882]

Useful information👍

[@engineeringmaterials-tribo5142]

Thank you 👍

[@hassanejaz8139]

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

[@engineeringmaterials-tribo5142]

Plastics Engineering by R J Crawford Mechanical Properties of Solid Polymers by I M Ward and J Sweeney. drive.google.com/file/d/11LTR8GDOGwYCE7fWBEV-vck6uKlRbmBd/view?usp=sharing

[@hassanejaz8139]

@@engineeringmaterials-tribo5142 Thank You 🙂

[@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?

[@engineeringmaterials-tribo5142]

Assumption is that the fibre is more brittle than the matrix. Thus, at the point of fibre fracture (at fracture strain of the fibre), matrix is still in the elastic range. Let me know if you have further question. 👍

[@Aviator168]

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

[@engineeringmaterials-tribo5142]

Thanks! The analysis is not developed for foam per se. However, if we can treat a foam as not homogeneous and isotropic material then yes we can use this analysis.👍

[@Aviator168]

@@engineeringmaterials-tribo5142 Thank you for replying. So for composite sandwich plate buckling analysis (say the carbon layout is isotropic and foam core is also isotropic). This method can be use to find the over all young's modulus and ultimate strength?

[@joypuzzles_yt]

Amazing explanation

[@engineeringmaterials-tribo5142]

👍

[@chinmaybawaskar6075]

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

[@engineeringmaterials-tribo5142]

Not applicable for compression. In fact, fibres will not strengthen the matrix in compression.

[@vinaykumarsambalmath143]

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

[@engineeringmaterials-tribo5142]

please send your questions through this comment section. Thanks.

[@samgeorge2258]

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

[@engineeringmaterials-tribo5142]

Yes, only then the short fibres can impart load transfer effectively.

[@Xyz-rt1ed]

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?

[@engineeringmaterials-tribo5142]

Yes, if the bonding between the two woods is excellent. There should be no debonding during the tension.

[@Xyz-rt1ed]

@@engineeringmaterials-tribo5142 thank you so much for the fast reply

[@SIBY240]

Useful information

[@engineeringmaterials-tribo5142]

Thanks👍

[@anmolgupta882]

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

[@engineeringmaterials-tribo5142]

yes, sometimes it is known as the inverse rule of mixture.

[@anmolgupta882]

@@engineeringmaterials-tribo5142 Thanks sir

[@lancypeterlopes5394]

God bless you...

[@engineeringmaterials-tribo5142]

👍

[@ahmedelshahawy8878]

Thanks

[@aminkhaliq6682]

Thanks a lot sir

[@engineeringmaterials-tribo5142]

👍