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- Thread starter kamikazi929
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In summary, The conversation discusses finding the deflection at a specific point on a beam and the methods that can be used to solve it. The beam has a downward point load and a moment at specific distances from the left end. The two main approaches to solving this problem are the geometric and energetic methods, which include double integration, superposition, moment-area, conjugate beam, virtual work, and Castigliano's Theorem. It is suggested that the student pick one method and start working on it.

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There is a downward point load of 85 kN at 2 m from the left end and moment of 100 kN-m at 4 from the left end.

Do you know the convention on moment? The 100 kN-m moment will raise the portion of the beam on the left side, will lowering the portion of the beam on the right side, of the moment.

Do you have examples from your textbook?

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Homework Helper

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What methods do you know? Geometric and/or energetic?

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- #5

Homework Helper

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Geometric Approach:

Double Integration

Superposition

Moment-Area

Conjugate Beam

Energetic:

Virtual Work

Castigliano's Theorem

any of them is in your course syllabus?

Usually a regular Mechanics of Material course will cover the three first geometric methods. An advanced course may include also Castigliano's Theorem.

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Moment-Area and Double Integration sounds familiar

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Homework Helper

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[tex] \frac{d^{2} \nu}{dx^{2}} = \frac{M}{EI} [/tex]

Moment-Area has two theorems, you'll need to work out.

why don't you pick one and start?

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ill give it a bash now see what i come up with

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totally hit a brick wall with this one :(

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Homework Helper

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kamikazi929 said:totally hit a brick wall with this one :(

Why don't you show us what you did, so we can actually help?

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