ENCN231-21S1 (C) Semester One 2021

Solid Mechanics

15 points

Start Date: Monday, 22 February 2021
End Date: Sunday, 27 June 2021
Withdrawal Dates
Last Day to withdraw from this course:
  • Without financial penalty (full fee refund): Sunday, 7 March 2021
  • Without academic penalty (including no fee refund): Friday, 14 May 2021


Introduction to solid and structural mechanics: analysis of statically determinate structures; stress and strain; behaviour of beams and columns; analysis of deformations; torsion.

This course introduces emerging civil engineers to solid and structural mechanics. The aim is to provide the fundamentals for the analysis of problems involving statically determinate structures. It develops understanding of stress/strain relations, behaviours of beams and columns under applied loads, torsion of prismatic members, transformations of stresses and strains and deflections of determinate beams.

Learning Outcomes

  • At the conclusion of this course you should be able to:

  • Calculate and plot internal forces: axial forces, shear forces, bending moments, and torques;
  • Define and compute stresses and strains in beams for different loadings;
  • Calculate stress and strain distributions, transformations, and principal components;
  • Apply the integration method and the moment area theorem to calculating beam deflections


Subject to approval of the Dean of Engineering and Forestry


ENCI230, ENCI234

Course Coordinator

Christopher McGann


Anthony Abu and Allan Scott


Assessment Due Date Percentage 
final exam 40%
Lab report 10%
Quizzes (11) 20%
Test 30%

The test will cover Modules 1-3 (Stress and Strain, Pure Bending, and Beam Bending). The final exam will be comprehensive, but with a focus on Modules 4-7 (Flexural Deformation in Beams, Stress/Strain Transformation, Shear Stress in Beams, and Torsion). Please note that:

1. You cannot pass this course if you achieve a mark < 40% on both the test and final exam.
2. Tutorials are designed around two key learning outcomes: (1) a summative assessment (weekly quiz) to gauge your knowledge/comfort with the material, and (2) further guided practice on concepts and problem-solving skills through additional, non-assessed problem sets. You must attend your allocated tutorial stream or you will be given a fail grade for your quiz. Exceptions may be granted on an ad hoc basis, but this must be confirmed by the course coordinator before the tutorial session.
3. Quizzes are held at the end of tutorial sessions each week, and will cover material up to that point in the course with a focus on the specific material in lectures for that week. Quizzes cannot be made up if missed for any reason and no extra time will be given for late arrivals. The final quiz grade in the course will comprise the top 9/11 quiz marks to allow for students to miss up to two quizzes without penalty.
4. Homework problems will be posted for each week. These problems will not be collected or assessed, they are for your own practice and learning. Numerical answers will be made available, but no worked solutions will be posted. We strongly suggest that you take advantage of these homework problems to support your learning and attempt them before the tutorial sessions.

Additional Course Outline Information


You have to self-select your lab group through the My timetable system. However, this selection needs to be completed by 5.00 pm on Wednesday 25 March 2020. If you have not self-allocated by this time, you will be allocated into a lab by the course coordinator. A list will be compiled of the members in each group, uploaded to LEARN and used to take attendance at each lab session.

Lab group selections made after 5.00 pm on Wednesday 25 March 2020 will not appear on the published list, and affected students will be turned away from the lab. If for any reason you are experiencing difficulty choosing your preferred group please see the course coordinator early to help resolve this before Wednesday 25 March 2020.

Lab Reports are due by 5.00 pm, three weeks after the laboratory section that you have been allocated to. They should be prepared according to the guidance given in the Department of Civil and Natural Resources Engineering Communications Portfolio Guide.

Where to submit and collect work

Lab Reports should be dropped into the homework boxes on Level 2 (Civil/Mechanical Engineering Building) next to room E15. Lab Reports have title pages, not coversheets.

Indicative Fees

Domestic fee $986.00

International fee $5,500.00

* All fees are inclusive of NZ GST or any equivalent overseas tax, and do not include any programme level discount or additional course-related expenses.

For further information see Civil and Natural Resources Engineering .

All ENCN231 Occurrences

  • ENCN231-21S1 (C) Semester One 2021