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Steven Frank profile image
Steven Frank profile image
10/10 starsCompleted
  • 59 reviews
  • 57 completed
3 years, 6 months ago
This foundational course in mechanical engineering explores various indignities (stretching, squeezing, twisting, and bending) to which mechanical structures can be subjected, and their behavior in respons... This foundational course in mechanical engineering explores various indignities (stretching, squeezing, twisting, and bending) to which mechanical structures can be subjected, and their behavior in response. While introductory, the course is not easy (it’s MIT, folks!), but is exceptionally well taught. The first four weeks focus on axial loading (the stretching and squeezing) of bars and trusses. Next you move on to torsion and then bending. Each new unit builds on the previous one, and you see how the new concepts are elaborations of what you’ve previously learned. It all comes together in a final unit on elasticity, and there are two optional units that delve further into material stress concepts. What’s covered in class is analytical, but you’ll also begin studying the finite-element (FE) approach to solving structural problems and learn about the computational “solver” tools that engineers use every day. The FE segments neatly parallel the graded class work, with problems you’ve solved analytically now represented visually in an Akselos window. It’s a blast to see what happens to the structure – how the color-coded stresses change and the structure deforms – as you vary the applied forces and structural properties. These segments also provide a glimpse into the world beyond 2.01, where various simplifying assumptions don’t apply. The instruction is unparalleled. Simona Socrate is articulate, engaging, funny, and teaches with chalk-breaking passion. Yes, the class is taught on blackboards (many, actually), but you needn’t take notes – Prof. Socrate has already taken them for you, in color. She knows where you’re likely to get confused and patiently walks you through the minefields. In her opening video, she promises that the class will be a partnership, that she’ll be there for you – and she means it. The staff does a wonderful job keeping up with questions on the discussion board, but the most energetic poster is Prof. Socrate herself. She answers questions. She responds to concerns. She is known to quote Dante. There are 9 weekly problem sets, your best 7 of which account for 30% of the grade. A midterm quiz counts for another 30%, and the final quiz is worth 40%. All of the graded assignments are very fair – even when challenging, none of the problems go beyond what’s been taught. There are also weekly “recitations” in which a staff member solves example problems from start to finish, and Prof. Socrate sometimes posts videos solving some of the more difficult homework or quiz-prep problems. But in all cases, extensive (and extremely well-written) solutions are provided. These deserve close study – collectively, they would make a great textbook. Anyone with even a passing interest in engineering (and a decent background in basic calculus) should take this introduction to how the built world works. Look around you: every structure you see is still standing because the behaviors and vulnerabilities explored in this course have been successfully anticipated. Beams and bones, bridges and nachos -- the concepts you learn in 2.01x are relevant to all of them.
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Hesam shahabodin profile image
Hesam shahabodin profile image

Hesam shahabodin

8/10 starsTaking Now
2 years, 12 months ago
That was awesome.I have learnt strengh of material long time ago and now I remembered every things that were forgot.I really appreciate from every one that provided all of this material.
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