All in here (if using Euler Bernoulli beam theory)

http://sci-toys.com/bent_paper_problem.pdf

---

(*Added by Joseph O'Rourke*). Here is Fig.1 from the paper by Antoni Colom, "Analysis of the shape of a sheet of paper when two opposite edges are joined," PDF link above.
         ![Tear Drop][1]

All in here (if using Euler Bernoulli beam theory)

http://sci-toys.com/bent_paper_problem.pdf

---

(*Added by Joseph O'Rourke*). Here is Fig.1 from the paper by Antoni Colom, "Analysis of the shape of a sheet of paper when two opposite edges are joined," PDF link above.
         ![Tear Drop][1]

All in here (if using Euler Bernoulli beam theory)

http://sci-toys.com/bent_paper_problem.pdf

All in here (if using Euler Bernoulli beam theory)

http://sci-toys.com/bent_paper_problem.pdf

---

(*Added by Joseph O'Rourke*). Here is Fig.1 from the paper by Antoni Colom, "Analysis of the shape of a sheet of paper when two opposite edges are joined," PDF link above.
         ![Tear Drop][1]