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ENGN 2240: Linear Elasticity - Fall 2016

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ENGN 2240: Linear Elasticity – Fall 2016

Instructor: Professor Huajian Gao

This course will focus on fundamental theories and applications of linear elasticity.
The students will spend 3 hours per week in class for 14 weeks (42 hours), Homeworks,
reading, exams, and other out-of-class work are estimated at around 10 hours per week
(140 hours).

Audience: Graduate students

Prerequisites: Prior exposure to mechanics of solid and structures as well as vector and
tensor manipulations is highly encouraged

Grading:
 Homework: 50%; Midterm: 20%; Final exam: 30%

Outline (subject to minor changes):


Governing equations of linear elasticity; equations in continuum mechanics and their
linearization; boundary and initial value problems
Theorems of linear elasticity; superposition; uniqueness theorems; reciprocal theorem;
Saint Venant's principle
Three-dimensional static boundary value problems; papkovich neuber potentials;
singular solutions for an infinite solid; boundary element method; solutions for 3d
dislocation loops in an infinite solid; eigenstrains; Eshelby inclusion problems;
singular solutions for the half space; contact problems; Saint Venant theory of
torsion of slender members
Two-dimensional static boundary value problems in anti-plane shear; complex
variable solutions and conformal mapping methods
Two-dimensional static boundary value problems in plane elasticity; plane strain,
plane stress and associated field equations; airy stress functions; complex variable
methods for plane elastostatics and examples; Cauchy integral formula; analytic
continuation; traction boundary value problems for the half plane; mixed
boundary value problems for the half plane: contact and crack problems
Energy theorems and applications; principle of virtual work; principles of stationary
and minimum potential energy; applications of stationary and minimum potential
energy: approximate solutions and bounds; principles of stationary and minimum
complementary energy and applications
Elasticity theory for anisotropic materials; constitutive equations for anisotropic
materials; Stroh representation for general plane deformation of anisotropic
materials; solutions to selected boundary value problems

Textbook & reference: Lecture notes available online; Applied Mechanics of Solids.
Allan F. Bower solidmechanics.org

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